Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Monday, August 31, 2026
The tide is currently rising in Arcata Wharf, CA.

Next low tide : 9:49 pm (0.8 ft)
Next high tide : in 3h 59m at 3:19 pm (7.0 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:42 am
Moon phase : Waning Gibbous (86% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Apr 1918

< Mar 1918

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May 1918 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Mon	3:29	6.7	5:10	4.8	10:37	0.3	10:01	3.0	7:00	7:40		1	Mon
2	Tue	4:08	6.5	6:12	4.6	11:28	0.4	10:47	3.3	6:58	7:41		2	Tue
3	Wed	4:57	6.4	7:20	4.6			12:27	0.4	6:57	7:42		3	Wed
4	Thu	6:02	6.2	8:27	4.7			1:31	0.4	6:55	7:43		4	Thu
5	Fri	7:19	6.1	9:24	5.1	1:21	3.4	2:35	0.3	6:53	7:44		5	Fri
6	Sat	8:36	6.1	10:11	5.6	2:44	2.9	3:33	0.2	6:52	7:45		6	Sat
7	Sun	9:48	6.2	10:53	6.2	3:54	2.2	4:25	0.2	6:50	7:46		7	Sun
8	Mon	10:54	6.4	11:33	6.8	4:53	1.3	5:12	0.3	6:49	7:47		8	Mon
9	Tue	11:54	6.5			5:47	0.4	5:58	0.5	6:47	7:48		9	Tue
10	Wed	12:12	7.3	12:51	6.5	6:38	-0.4	6:41	0.8	6:45	7:49		10	Wed
11	Thu	12:51	7.7	1:46	6.4	7:27	-1.0	7:25	1.2	6:44	7:51		11	Thu
12	Fri	1:31	7.9	2:41	6.3	8:16	-1.4	8:09	1.6	6:42	7:52		12	Fri
13	Sat	2:13	7.9	3:36	6.0	9:05	-1.4	8:55	2.1	6:41	7:53		13	Sat
14	Sun	2:57	7.7	4:32	5.7	9:56	-1.2	9:44	2.5	6:39	7:54		14	Sun
15	Mon	3:45	7.3	5:33	5.4	10:49	-0.8	10:39	2.9	6:37	7:55		15	Mon
16	Tue	4:37	6.8	6:38	5.2	11:45	-0.3	11:43	3.1	6:36	7:56		16	Tue
17	Wed	5:36	6.2	7:45	5.1			12:46	0.1	6:34	7:57		17	Wed
18	Thu	6:44	5.7	8:47	5.2	12:59	3.1	1:49	0.5	6:33	7:58		18	Thu
19	Fri	7:56	5.4	9:38	5.4	2:18	2.9	2:48	0.8	6:31	7:59		19	Fri
20	Sat	9:07	5.2	10:19	5.6	3:29	2.5	3:41	1.0	6:30	8:00		20	Sat
21	Sun	10:11	5.2	10:52	5.9	4:25	1.9	4:26	1.2	6:28	8:01		21	Sun
22	Mon	11:07	5.2	11:22	6.2	5:11	1.4	5:06	1.4	6:27	8:02		22	Mon
23	Tue	11:56	5.3	11:51	6.4	5:51	0.9	5:42	1.7	6:26	8:03		23	Tue
24	Wed			12:40	5.4	6:28	0.4	6:16	1.9	6:24	8:04		24	Wed
25	Thu	12:20	6.6	1:22	5.4	7:04	0.0	6:49	2.2	6:23	8:05		25	Thu
26	Fri	12:49	6.8	2:04	5.4	7:39	-0.3	7:21	2.4	6:21	8:06		26	Fri
27	Sat	1:19	6.9	2:45	5.3	8:14	-0.5	7:54	2.6	6:20	8:07		27	Sat
28	Sun	1:49	6.9	3:29	5.2	8:52	-0.6	8:28	2.8	6:19	8:08		28	Sun
29	Mon	2:22	6.8	4:15	5.1	9:32	-0.6	9:06	3.0	6:17	8:09		29	Mon
30	Tue	2:58	6.7	5:05	5.0	10:15	-0.5	9:50	3.2	6:16	8:10		30	Tue
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9418851)

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Is this week a spring tide or neap tide in Arcata Wharf, CA?

Arcata Wharf, CA is currently in a spring phase. Tonight's moon is 86% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Arcata Wharf, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Arcata Wharf, CA?

Tide predictions for Arcata Wharf, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Arcata Wharf, CA?

Tide data for Arcata Wharf, CA is sourced from NOAA Station #9418851. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9418851.

What is the moon phase in Arcata Wharf, CA tonight?

Tonight the moon over Arcata Wharf, CA is Waning Gibbous (86% illuminated). This places Arcata Wharf, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA

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