Knappa Tides September 2024 | Tide Charts & Tables | Columbia River, OR

Knappa Tide Chart for (Sun) September 1, 2024

Knappa tide chart for Sunday, September 1, 2024
Knappa tides for Sep 1st, the sunrise is 6:35am-7:51pm and the tide times are H 1:03am 7'7" L 8:31am -0'7" H 2:18pm 7'0" L 8:27pm 1'7" .

Knappa Tide Chart for (Mon) September 2, 2024

Knappa tide chart for Monday, September 2, 2024
Knappa tides for Sep 2nd, the sunrise is 6:36am-7:49pm and the tide times are H 1:48am 7'8" L 9:06am -0'6" H 2:51pm 7'2" L 9:09pm 1'3" .

Knappa Tide Chart for (Tue) September 3, 2024

Knappa tide chart for Tuesday, September 3, 2024
Knappa tides for Sep 3rd, the sunrise is 6:38am-7:47pm and the tide times are H 2:29am 7'7" L 9:37am -0'3" H 3:20pm 7'4" L 9:47pm 1'0" .

Knappa Tide Chart for (Wed) September 4, 2024

Knappa tide chart for Wednesday, September 4, 2024
Knappa tides for Sep 4th, the sunrise is 6:39am-7:45pm and the tide times are H 3:08am 7'5" L 10:05am 0'0" H 3:46pm 7'5" L 10:23pm 0'9" .

Knappa Tide Chart for (Thu) September 5, 2024

Knappa tide chart for Thursday, September 5, 2024
Knappa tides for Sep 5th, the sunrise is 6:40am-7:43pm and the tide times are H 3:46am 7'2" L 10:31am 0'4" H 4:09pm 7'6" L 10:57pm 0'7" .

Knappa Tide Chart for (Fri) September 6, 2024

Knappa tide chart for Friday, September 6, 2024
Knappa tides for Sep 6th, the sunrise is 6:41am-7:41pm and the tide times are H 4:25am 6'10" L 10:55am 0'9" H 4:30pm 7'7" L 11:31pm 0'6" .

Knappa Tide Chart for (Sat) September 7, 2024

Knappa tide chart for Saturday, September 7, 2024
Knappa tides for Sep 7th, the sunrise is 6:43am-7:39pm and the tide times are H 5:05am 6'5" L 11:20am 1'2" H 4:52pm 7'8" .

Knappa Tide Chart for (Sun) September 8, 2024

Knappa tide chart for Sunday, September 8, 2024
Knappa tides for Sep 8th, the sunrise is 6:44am-7:38pm and the tide times are L 12:05am 0'5" H 5:48am 6'0" L 11:47am 1'8" H 5:19pm 7'7" .

Knappa Tide Chart for (Mon) September 9, 2024

Knappa tide chart for Monday, September 9, 2024
Knappa tides for Sep 9th, the sunrise is 6:45am-7:36pm and the tide times are L 12:44am 0'5" H 6:41am 5'6" L 12:19pm 2'2" H 5:51pm 7'6" .

Knappa Tide Chart for (Tue) September 10, 2024

Knappa tide chart for Tuesday, September 10, 2024
Knappa tides for Sep 10th, the sunrise is 6:46am-7:34pm and the tide times are L 1:32am 0'6" H 7:48am 5'1" L 1:02pm 2'7" H 6:35pm 7'4" .

Knappa Tide Chart for (Wed) September 11, 2024

Knappa tide chart for Wednesday, September 11, 2024
Knappa tides for Sep 11th, the sunrise is 6:48am-7:32pm and the tide times are L 2:39am 0'7" H 9:12am 5'0" L 2:03pm 3'0" H 7:34pm 7'1" .

Knappa Tide Chart for (Thu) September 12, 2024

Knappa tide chart for Thursday, September 12, 2024
Knappa tides for Sep 12th, the sunrise is 6:49am-7:30pm and the tide times are L 4:01am 0'6" H 10:32am 5'2" L 3:32pm 3'3" H 8:54pm 7'0" .

Knappa Tide Chart for (Fri) September 13, 2024

Knappa tide chart for Friday, September 13, 2024
Knappa tides for Sep 13th, the sunrise is 6:50am-7:28pm and the tide times are L 5:18am 0'3" H 11:36am 5'8" L 5:01pm 3'0" H 10:18pm 7'2" .

Knappa Tide Chart for (Sat) September 14, 2024

Knappa tide chart for Saturday, September 14, 2024
Knappa tides for Sep 14th, the sunrise is 6:52am-7:26pm and the tide times are L 6:20am -0'1" H 12:25pm 6'2" L 6:12pm 2'6" H 11:31pm 7'7" .

Knappa Tide Chart for (Sun) September 15, 2024

Knappa tide chart for Sunday, September 15, 2024
Knappa tides for Sep 15th, the sunrise is 6:53am-7:24pm and the tide times are L 7:10am -0'6" H 1:07pm 6'9" L 7:10pm 1'9" .

Knappa Tide Chart for (Mon) September 16, 2024

Knappa tide chart for Monday, September 16, 2024
Knappa tides for Sep 16th, the sunrise is 6:54am-7:22pm and the tide times are H 12:32am 8'0" L 7:55am -0'9" H 1:45pm 7'4" L 8:02pm 1'0" .

Knappa Tide Chart for (Tue) September 17, 2024

Knappa tide chart for Tuesday, September 17, 2024
Knappa tides for Sep 17th, the sunrise is 6:55am-7:20pm and the tide times are H 1:28am 8'4" L 8:36am -0'9" H 2:20pm 7'11" L 8:52pm 0'4" .

Knappa Tide Chart for (Wed) September 18, 2024

Knappa tide chart for Wednesday, September 18, 2024
Knappa tides for Sep 18th, the sunrise is 6:57am-7:18pm and the tide times are H 2:21am 8'5" L 9:15am -0'7" H 2:56pm 8'5" L 9:40pm -0'3" .

Knappa Tide Chart for (Thu) September 19, 2024

Knappa tide chart for Thursday, September 19, 2024
Knappa tides for Sep 19th, the sunrise is 6:58am-7:16pm and the tide times are H 3:13am 8'3" L 9:53am -0'2" H 3:31pm 8'9" L 10:28pm -0'9" .

Knappa Tide Chart for (Fri) September 20, 2024

Knappa tide chart for Friday, September 20, 2024
Knappa tides for Sep 20th, the sunrise is 6:59am-7:14pm and the tide times are H 4:06am 7'10" L 10:32am 0'3" H 4:06pm 9'0" L 11:17pm -0'11" .

Knappa Tide Chart for (Sat) September 21, 2024

Knappa tide chart for Saturday, September 21, 2024
Knappa tides for Sep 21st, the sunrise is 7:00am-7:12pm and the tide times are H 4:59am 7'4" L 11:11am 0'10" H 4:43pm 8'11" .

Knappa Tide Chart for (Sun) September 22, 2024

Knappa tide chart for Sunday, September 22, 2024
Knappa tides for Sep 22nd, the sunrise is 7:02am-7:10pm and the tide times are L 12:07am -0'11" H 5:56am 6'9" L 11:54am 1'6" H 5:24pm 8'8" .

Knappa Tide Chart for (Mon) September 23, 2024

Knappa tide chart for Monday, September 23, 2024
Knappa tides for Sep 23rd, the sunrise is 7:03am-7:08pm and the tide times are L 1:03am -0'8" H 7:00am 6'2" L 12:42pm 2'1" H 6:10pm 8'2" .

Knappa Tide Chart for (Tue) September 24, 2024

Knappa tide chart for Tuesday, September 24, 2024
Knappa tides for Sep 24th, the sunrise is 7:04am-7:06pm and the tide times are L 2:05am -0'3" H 8:12am 5'9" L 1:42pm 2'8" H 7:07pm 7'6" .

Knappa Tide Chart for (Wed) September 25, 2024

Knappa tide chart for Wednesday, September 25, 2024
Knappa tides for Sep 25th, the sunrise is 7:06am-7:04pm and the tide times are L 3:18am 0'0" H 9:30am 5'8" L 2:59pm 2'11" H 8:21pm 7'0" .

Knappa Tide Chart for (Thu) September 26, 2024

Knappa tide chart for Thursday, September 26, 2024
Knappa tides for Sep 26th, the sunrise is 7:07am-7:02pm and the tide times are L 4:34am 0'2" H 10:43am 5'11" L 4:23pm 2'11" H 9:45pm 6'9" .

Knappa Tide Chart for (Fri) September 27, 2024

Knappa tide chart for Friday, September 27, 2024
Knappa tides for Sep 27th, the sunrise is 7:08am-7:00pm and the tide times are L 5:41am 0'1" H 11:42am 6'4" L 5:38pm 2'6" H 11:00pm 6'10" .

Knappa Tide Chart for (Sat) September 28, 2024

Knappa tide chart for Saturday, September 28, 2024
Knappa tides for Sep 28th, the sunrise is 7:09am-6:58pm and the tide times are L 6:35am 0'0" H 12:28pm 6'10" L 6:38pm 2'0" .

Knappa Tide Chart for (Sun) September 29, 2024

Knappa tide chart for Sunday, September 29, 2024
Knappa tides for Sep 29th, the sunrise is 7:11am-6:56pm and the tide times are H 12:00am 7'0" L 7:19am 0'0" H 1:05pm 7'2" L 7:28pm 1'5" .

Knappa Tide Chart for (Mon) September 30, 2024

Knappa tide chart for Monday, September 30, 2024
Knappa tides for Sep 30th, the sunrise is 7:12am-6:54pm and the tide times are H 12:50am 7'3" L 7:55am 0'0" H 1:38pm 7'6" L 8:10pm 1'0" .

Knappa Tide Calendar | September 2024

Sun Mon Tue Wed Thu Fri Sat
Knappa tide chart for Sunday, September 1, 2024
Knappa tide chart for Monday, September 2, 2024
Knappa tide chart for Tuesday, September 3, 2024
Knappa tide chart for Wednesday, September 4, 2024
Knappa tide chart for Thursday, September 5, 2024
Knappa tide chart for Friday, September 6, 2024
Knappa tide chart for Saturday, September 7, 2024
Knappa tide chart for Sunday, September 8, 2024
Knappa tide chart for Monday, September 9, 2024
Knappa tide chart for Tuesday, September 10, 2024
Knappa tide chart for Wednesday, September 11, 2024
Knappa tide chart for Thursday, September 12, 2024
Knappa tide chart for Friday, September 13, 2024
Knappa tide chart for Saturday, September 14, 2024
Knappa tide chart for Sunday, September 15, 2024
Knappa tide chart for Monday, September 16, 2024
Knappa tide chart for Tuesday, September 17, 2024
Knappa tide chart for Wednesday, September 18, 2024
Knappa tide chart for Thursday, September 19, 2024
Knappa tide chart for Friday, September 20, 2024
Knappa tide chart for Saturday, September 21, 2024
Knappa tide chart for Sunday, September 22, 2024
Knappa tide chart for Monday, September 23, 2024
Knappa tide chart for Tuesday, September 24, 2024
Knappa tide chart for Wednesday, September 25, 2024
Knappa tide chart for Thursday, September 26, 2024
Knappa tide chart for Friday, September 27, 2024
Knappa tide chart for Saturday, September 28, 2024
Knappa tide chart for Sunday, September 29, 2024
Knappa tide chart for Monday, September 30, 2024
 

Restricted days available with membership — details below


Knappa Tide Table for September 2024

View tide tables in a column-row format below, with a "diff" column to spot large tide height swings—great for anglers. Scroll down for a textual format, ideal for reading or sharing.

- diff Tides diff Tides diff Tides diff Tides diff Sun Moon
9/1 N/A H 7'7" 1:03AM 8'3" L -0'7" 8:31AM 7'7" H 7'0" 2:18PM 5'4" L 1'7" 8:27PM 6'0" 06:35-19:51 04:55-19:40
9/2 6'0" H 7'8" 1:48AM 8'2" L -0'6" 9:06AM 7'8" H 7'2" 2:51PM 5'10" L 1'3" 9:09PM 6'3" 06:36-19:49 06:03-19:57
9/3 6'3" H 7'7" 2:29AM 7'10" L -0'3" 9:37AM 7'7" H 7'4" 3:20PM 6'3" L 1'0" 9:47PM 6'5" 06:38-19:47 07:09-20:12
9/4 6'5" H 7'5" 3:08AM 7'5" L 0'0" 10:05AM 7'5" H 7'5" 3:46PM 6'7" L 0'9" 10:23PM 6'4" 06:39-19:45 08:13-20:26
9/5 6'4" H 7'2" 3:46AM 6'9" L 0'4" 10:31AM 7'1" H 7'6" 4:09PM 6'10" L 0'7" 10:57PM 6'3" 06:40-19:43 09:18-20:41
9/6 6'3" H 6'10" 4:25AM 6'1" L 0'9" 10:55AM 6'9" H 7'7" 4:30PM 7'1" L 0'6" 11:31PM 5'11" 06:41-19:41 10:22-20:56
9/7 5'11" H 6'5" 5:05AM 5'3" L 1'2" 11:20AM 6'5" H 7'8" 4:52PM 7'2" - - - - 06:43-19:39 11:28-21:15
9/8 7'2" L 0'5" 12:05AM 5'7" H 6'0" 5:48AM 4'4" L 1'8" 11:47AM 5'11" H 7'7" 5:19PM 7'2" 06:44-19:38 12:37-21:37
9/9 7'2" L 0'5" 12:44AM 5'1" H 5'6" 6:41AM 3'4" L 2'2" 12:19PM 5'4" H 7'6" 5:51PM 6'11" 06:45-19:36 13:46-22:06
9/10 6'11" L 0'6" 1:32AM 4'7" H 5'1" 7:48AM 2'6" L 2'7" 1:02PM 4'8" H 7'4" 6:35PM 6'8" 06:46-19:34 14:55-22:45
9/11 6'8" L 0'7" 2:39AM 4'4" H 5'0" 9:12AM 1'11" L 3'0" 2:03PM 4'0" H 7'1" 7:34PM 6'6" 06:48-19:32 15:59-23:37
9/12 6'6" L 0'6" 4:01AM 4'7" H 5'2" 10:32AM 1'11" L 3'3" 3:32PM 3'9" H 7'0" 8:54PM 6'8" 06:49-19:30 16:53-00:00
9/13 6'8" L 0'3" 5:18AM 5'4" H 5'8" 11:36AM 2'7" L 3'0" 5:01PM 4'1" H 7'2" 10:18PM 7'4" 06:50-19:28 17:38-00:42
9/14 7'4" L -0'1" 6:20AM 6'4" H 6'2" 12:25PM 3'8" L 2'6" 6:12PM 5'1" H 7'7" 11:31PM 8'1" 06:52-19:26 18:12-01:59
9/15 8'1" L -0'6" 7:10AM 7'4" H 6'9" 1:07PM 4'11" L 1'9" 7:10PM 6'2" - - - - 06:53-19:24 18:39-03:22
9/16 6'2" H 8'0" 12:32AM 8'9" L -0'9" 7:55AM 8'1" H 7'4" 1:45PM 6'3" L 1'0" 8:02PM 7'3" 06:54-19:22 19:01-04:47
9/17 7'3" H 8'4" 1:28AM 9'1" L -0'9" 8:36AM 8'8" H 7'11" 2:20PM 7'7" L 0'4" 8:52PM 8'0" 06:55-19:20 19:22-06:13
9/18 8'0" H 8'5" 2:21AM 9'0" L -0'7" 9:15AM 9'0" H 8'5" 2:56PM 8'8" L -0'3" 9:40PM 8'6" 06:57-19:18 19:41-07:38
9/19 8'6" H 8'3" 3:13AM 8'5" L -0'2" 9:53AM 9'0" H 8'9" 3:31PM 9'6" L -0'9" 10:28PM 8'7" 06:58-19:16 20:01-09:03
9/20 8'7" H 7'10" 4:06AM 7'7" L 0'3" 10:32AM 8'8" H 9'0" 4:06PM 9'11" L -0'11" 11:17PM 8'4" 06:59-19:14 20:25-10:28
9/21 8'4" H 7'4" 4:59AM 6'5" L 0'10" 11:11AM 8'0" H 8'11" 4:43PM 9'10" - - - - 07:00-19:12 20:54-11:54
9/22 9'10" L -0'11" 12:07AM 7'8" H 6'9" 5:56AM 5'2" L 1'6" 11:54AM 7'1" H 8'8" 5:24PM 9'4" 07:02-19:10 21:31-13:17
9/23 9'4" L -0'8" 1:03AM 6'10" H 6'2" 7:00AM 4'0" L 2'1" 12:42PM 6'0" H 8'2" 6:10PM 8'5" 07:03-19:08 22:19-14:32
9/24 8'5" L -0'3" 2:05AM 6'0" H 5'9" 8:12AM 3'1" L 2'8" 1:42PM 4'10" H 7'6" 7:07PM 7'6" 07:04-19:06 23:17-15:34
9/25 7'6" L 0'0" 3:18AM 5'7" H 5'8" 9:30AM 2'8" L 2'11" 2:59PM 4'0" H 7'0" 8:21PM 6'10" 07:06-19:04 00:00-16:22
9/26 6'10" L 0'2" 4:34AM 5'9" H 5'11" 10:43AM 3'0" L 2'11" 4:23PM 3'10" H 6'9" 9:45PM 6'7" 07:07-19:02 00:24-16:59
9/27 6'7" L 0'1" 5:41AM 6'2" H 6'4" 11:42AM 3'10" L 2'6" 5:38PM 4'3" H 6'10" 11:00PM 6'9" 07:08-19:00 01:35-17:26
9/28 6'9" L 0'0" 6:35AM 6'9" H 6'10" 12:28PM 4'9" L 2'0" 6:38PM 2'0" - - - - 07:09-18:58 02:45-17:47
9/29 2'0" L 0'0" 7:19AM 7'2" H 7'2" 1:05PM 5'9" L 1'5" 7:28PM 5'9" - - - - 07:11-18:56 03:54-18:05
9/30 5'9" H 7'3" 12:50AM 7'2" L 0'0" 7:55AM 7'5" H 7'6" 1:38PM 6'6" L 1'0" 8:10PM N/A 07:12-18:54 05:00-18:20

Knappa Textual Tide Table for September 2024


Sep 1st (Sun)
the sunrise is 6:35am-7:51pm and the tide times are H 1:03am 7'7" L 8:31am -0'7" H 2:18pm 7'0" L 8:27pm 1'7" .
Sep 2nd (Mon)
the sunrise is 6:36am-7:49pm and the tide times are H 1:48am 7'8" L 9:06am -0'6" H 2:51pm 7'2" L 9:09pm 1'3" .
Sep 3rd (Tue)
the sunrise is 6:38am-7:47pm and the tide times are H 2:29am 7'7" L 9:37am -0'3" H 3:20pm 7'4" L 9:47pm 1'0" .
Sep 4th (Wed)
the sunrise is 6:39am-7:45pm and the tide times are H 3:08am 7'5" L 10:05am 0'0" H 3:46pm 7'5" L 10:23pm 0'9" .
Sep 5th (Thu)
the sunrise is 6:40am-7:43pm and the tide times are H 3:46am 7'2" L 10:31am 0'4" H 4:09pm 7'6" L 10:57pm 0'7" .
Sep 6th (Fri)
the sunrise is 6:41am-7:41pm and the tide times are H 4:25am 6'10" L 10:55am 0'9" H 4:30pm 7'7" L 11:31pm 0'6" .
Sep 7th (Sat)
the sunrise is 6:43am-7:39pm and the tide times are H 5:05am 6'5" L 11:20am 1'2" H 4:52pm 7'8" .
Sep 8th (Sun)
the sunrise is 6:44am-7:38pm and the tide times are L 12:05am 0'5" H 5:48am 6'0" L 11:47am 1'8" H 5:19pm 7'7" .
Sep 9th (Mon)
the sunrise is 6:45am-7:36pm and the tide times are L 12:44am 0'5" H 6:41am 5'6" L 12:19pm 2'2" H 5:51pm 7'6" .
Sep 10th (Tue)
the sunrise is 6:46am-7:34pm and the tide times are L 1:32am 0'6" H 7:48am 5'1" L 1:02pm 2'7" H 6:35pm 7'4" .
Sep 11th (Wed)
the sunrise is 6:48am-7:32pm and the tide times are L 2:39am 0'7" H 9:12am 5'0" L 2:03pm 3'0" H 7:34pm 7'1" .
Sep 12th (Thu)
the sunrise is 6:49am-7:30pm and the tide times are L 4:01am 0'6" H 10:32am 5'2" L 3:32pm 3'3" H 8:54pm 7'0" .
Sep 13th (Fri)
the sunrise is 6:50am-7:28pm and the tide times are L 5:18am 0'3" H 11:36am 5'8" L 5:01pm 3'0" H 10:18pm 7'2" .
Sep 14th (Sat)
the sunrise is 6:52am-7:26pm and the tide times are L 6:20am -0'1" H 12:25pm 6'2" L 6:12pm 2'6" H 11:31pm 7'7" .
Sep 15th (Sun)
the sunrise is 6:53am-7:24pm and the tide times are L 7:10am -0'6" H 1:07pm 6'9" L 7:10pm 1'9" .
Sep 16th (Mon)
the sunrise is 6:54am-7:22pm and the tide times are H 12:32am 8'0" L 7:55am -0'9" H 1:45pm 7'4" L 8:02pm 1'0" .
Sep 17th (Tue)
the sunrise is 6:55am-7:20pm and the tide times are H 1:28am 8'4" L 8:36am -0'9" H 2:20pm 7'11" L 8:52pm 0'4" .
Sep 18th (Wed)
the sunrise is 6:57am-7:18pm and the tide times are H 2:21am 8'5" L 9:15am -0'7" H 2:56pm 8'5" L 9:40pm -0'3" .
Sep 19th (Thu)
the sunrise is 6:58am-7:16pm and the tide times are H 3:13am 8'3" L 9:53am -0'2" H 3:31pm 8'9" L 10:28pm -0'9" .
Sep 20th (Fri)
the sunrise is 6:59am-7:14pm and the tide times are H 4:06am 7'10" L 10:32am 0'3" H 4:06pm 9'0" L 11:17pm -0'11" .
Sep 21st (Sat)
the sunrise is 7:00am-7:12pm and the tide times are H 4:59am 7'4" L 11:11am 0'10" H 4:43pm 8'11" .
Sep 22nd (Sun)
the sunrise is 7:02am-7:10pm and the tide times are L 12:07am -0'11" H 5:56am 6'9" L 11:54am 1'6" H 5:24pm 8'8" .
Sep 23rd (Mon)
the sunrise is 7:03am-7:08pm and the tide times are L 1:03am -0'8" H 7:00am 6'2" L 12:42pm 2'1" H 6:10pm 8'2" .
Sep 24th (Tue)
the sunrise is 7:04am-7:06pm and the tide times are L 2:05am -0'3" H 8:12am 5'9" L 1:42pm 2'8" H 7:07pm 7'6" .
Sep 25th (Wed)
the sunrise is 7:06am-7:04pm and the tide times are L 3:18am 0'0" H 9:30am 5'8" L 2:59pm 2'11" H 8:21pm 7'0" .
Sep 26th (Thu)
the sunrise is 7:07am-7:02pm and the tide times are L 4:34am 0'2" H 10:43am 5'11" L 4:23pm 2'11" H 9:45pm 6'9" .
Sep 27th (Fri)
the sunrise is 7:08am-7:00pm and the tide times are L 5:41am 0'1" H 11:42am 6'4" L 5:38pm 2'6" H 11:00pm 6'10" .
Sep 28th (Sat)
the sunrise is 7:09am-6:58pm and the tide times are L 6:35am 0'0" H 12:28pm 6'10" L 6:38pm 2'0" .
Sep 29th (Sun)
the sunrise is 7:11am-6:56pm and the tide times are H 12:00am 7'0" L 7:19am 0'0" H 1:05pm 7'2" L 7:28pm 1'5" .
Sep 30th (Mon)
the sunrise is 7:12am-6:54pm and the tide times are H 12:50am 7'3" L 7:55am 0'0" H 1:38pm 7'6" L 8:10pm 1'0" .

Oregon Tides Map

Tides map. Large blue pin with white center = this station. Small blue pin = other tide stations. Red pins = tidepools covered by this tide station.

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NOAA/NWS Forecast for Knappa | Small Craft Advisory

Last updated: June 8, 2026, 12:07 PM

Small Craft Advisory

Small Craft Advisory issued June 8 at 7:56AM PDT until June 9 at 11:00PM PDT by NWS Portland OR

* WHAT...Rough bar conditions expected. Seas 5 to 8 ft at 9
seconds and south winds 10 to 15 kt with gusts up to 28 kt
expected.

* WHERE...In the Main Channel of the Columbia River Bar.

* WHEN...Until 11 PM PDT Tuesday.

* IMPACTS...Conditions will be hazardous to small craft,
especially when operating near to, or attempting to cross, the
Columbia River Bar.

* ADDITIONAL DETAILS...Ebb current of 3.53 kt at 1045 AM Monday.
Seas 5 ft. Ebb current of 3.8 kt at 1158 PM Monday. Seas 7 ft.
Ebb current of 3.17 kt at 1152 AM Tuesday. Seas 7 to 8 ft.

Effective: June 8, 2026, 2:56 PM

Expires: June 8, 2026, 9:00 PM

Marine Forecast (PZZ210)

PZZ210-090515-
Columbia River Bar-
800 AM PDT Mon Jun 8 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING...

.IN THE MAIN CHANNEL...

.GENERAL SEAS...5 ft building to 7 ft Tuesday morning.

.FIRST EBB...Ebb current of 3.53 kt at 1045 AM Monday. Seas 5 ft.

.SECOND EBB...Ebb current of 3.8 kt at 1158 PM Monday. Seas 7 ft.

.THIRD EBB...Ebb current of 3.17 kt at 1152 AM Tuesday. Seas 7 to
8 ft.

$$

Land Forecast (ORZ101)

THIS AFTERNOON: Rain. Highs in the upper 50s. Southeast wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to three quarters of an inch.

TONIGHT: A chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. Southwest wind 15 to 20 mph, becoming west with gusts up to 35 mph after midnight. Chance of rain 70 percent. Rainfall amounts a tenth to a quarter of an inch.

TUESDAY: A chance of showers in the morning, then showers likely in the afternoon. Highs in the upper 50s. West wind 10 to 15 mph. Chance of rain 70 percent. Rainfall amounts less than a tenth of an inch.

TUESDAY NIGHT: Mostly cloudy. Showers likely, mainly in the evening. Lows in the upper 40s. West wind 10 to 15 mph. Chance of rain 70 percent.

WEDNESDAY: Mostly cloudy with a slight chance of showers in the morning, then mostly sunny in the afternoon. Highs in the lower 60s. Winds light. Chance of rain 20 percent.

WEDNESDAY NIGHT: Mostly clear. Patchy fog. Lows in the upper 40s.

THURSDAY: Sunny. Highs in the upper 60s.

THURSDAY NIGHT: Mostly clear. Lows around 50.

FRIDAY: Sunny. Highs in the upper 60s.

FRIDAY NIGHT: Mostly clear. Lows in the lower 50s.

SATURDAY: Sunny. Highs in the upper 70s.

SATURDAY NIGHT: Mostly clear. Lows around 60.

SUNDAY: Sunny. Highs in the upper 80s.

Last updated: June 8, 2026, 12:07 PM

ODFW

Oregon Department of Fish and Wildlife with current fishing regulations seasons bag size limits and area specific rules

Oregon State Parks

Oregon State Parks and beaches with coastal camping, reservations, beach access, and tidepooling opportunities

Columbia River Lower Section Boating Overview (Other)

Overview of lower Columbia River boating near Knappa including nearby access points, sloughs, and channels for fishing, small boat launches, and river exploration. Tidal influences and river flows are key for safe navigation and launches; good for planning trips with tide charts and awareness of currents in the Astoria/Knappa region. Check Oregon State Marine Board for updates on facilities and regulations.

Knappa Slough Columbia River Shore Access (Other)

Informal shore and slough access near Knappa on the lower Columbia River for small boats, kayaks, and fishing from shore or hand carry launches. Connects to main Columbia channels with opportunities for salmon fishing, crabbing, and tidal river travel. Strong tides and currents require caution for safe access and navigation; check Marine Board or local conditions for updates.

Lower Columbia River Boating Guide Oregon Marine Board (Other)

Oregon State Marine Board guide to the lower Columbia River including areas near Knappa and Knappa Slough with details on ramps, navigation, hazards, moorages, and facilities for recreational boating in the tidal lower river section. Useful for planning launches from nearby access points with notes on tides, currents, shoals, and safe travel in the Astoria vicinity.