Tides Today & Tomorrow in Alameda, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Alameda, CA.

Next low tide : 7:53 am (-0.3 ft)
Next high tide : in 3h 46m at 1:05 am (6.6 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:11 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9414750
Common Questions About Tides

Alameda, CA Tides - Jul 1978

< Jun 1978

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Aug 1978 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Sat	10:56	5.0	10:09	7.0	4:29	0.0	3:56	2.4	5:50	8:35		1	Sat
2	Sun	11:49	5.2	10:48	6.9	5:14	-0.2	4:44	2.6	5:51	8:35		2	Sun
3	Mon			12:35	5.3	5:53	-0.3	5:29	2.7	5:51	8:34		3	Mon
4	Tue			1:17	5.4	6:30	-0.4	6:12	2.8	5:52	8:34		4	Tue
5	Wed	12:00	6.7	1:55	5.5	7:03	-0.4	6:53	2.8	5:52	8:34		5	Wed
6	Thu	12:36	6.6	2:31	5.5	7:34	-0.4	7:32	2.8	5:53	8:34		6	Thu
7	Fri	1:11	6.5	3:04	5.5	8:04	-0.3	8:12	2.8	5:54	8:34		7	Fri
8	Sat	1:48	6.3	3:36	5.6	8:34	-0.2	8:52	2.7	5:54	8:33		8	Sat
9	Sun	2:26	6.0	4:09	5.7	9:06	0.0	9:36	2.7	5:55	8:33		9	Sun
10	Mon	3:09	5.7	4:43	5.8	9:40	0.3	10:27	2.5	5:55	8:33		10	Mon
11	Tue	3:59	5.3	5:21	5.9	10:19	0.7	11:26	2.3	5:56	8:32		11	Tue
12	Wed	5:01	4.9	6:03	6.2	11:04	1.1			5:57	8:32		12	Wed
13	Thu	6:19	4.6	6:49	6.4	12:32	1.9	11:56 AM	1.6	5:57	8:31		13	Thu
14	Fri	7:45	4.5	7:38	6.7	1:38	1.4	12:56	2.0	5:58	8:31		14	Fri
15	Sat	9:05	4.6	8:30	7.1	2:40	0.8	1:59	2.3	5:59	8:30		15	Sat
16	Sun	10:13	4.9	9:22	7.4	3:36	0.2	3:02	2.5	5:59	8:30		16	Sun
17	Mon	11:13	5.3	10:14	7.7	4:29	-0.4	4:02	2.5	6:00	8:29		17	Mon
18	Tue			12:06	5.6	5:19	-0.9	5:00	2.5	6:01	8:29		18	Tue
19	Wed			12:55	5.9	6:07	-1.2	5:56	2.3	6:02	8:28		19	Wed
20	Thu			1:42	6.2	6:55	-1.4	6:51	2.1	6:02	8:28		20	Thu
21	Fri	12:52	7.7	2:27	6.4	7:41	-1.3	7:47	2.0	6:03	8:27		21	Fri
22	Sat	1:46	7.4	3:12	6.5	8:26	-1.0	8:44	1.8	6:04	8:26		22	Sat
23	Sun	2:40	6.9	3:57	6.6	9:11	-0.6	9:44	1.7	6:05	8:25		23	Sun
24	Mon	3:38	6.3	4:43	6.7	9:58	0.0	10:47	1.6	6:06	8:25		24	Mon
25	Tue	4:42	5.6	5:31	6.7	10:47	0.7	11:55	1.4	6:06	8:24		25	Tue
26	Wed	5:54	5.1	6:21	6.7	11:40	1.3			6:07	8:23		26	Wed
27	Thu	7:13	4.8	7:13	6.7	1:05	1.2	12:39	1.9	6:08	8:22		27	Thu
28	Fri	8:31	4.8	8:05	6.7	2:13	0.9	1:41	2.3	6:09	8:21		28	Fri
29	Sat	9:40	4.9	8:54	6.7	3:13	0.6	2:41	2.6	6:10	8:21		29	Sat
30	Sun	10:38	5.1	9:41	6.8	4:05	0.3	3:36	2.7	6:10	8:20		30	Sun
31	Mon	11:27	5.3	10:24	6.8	4:49	0.1	4:26	2.7	6:11	8:19		31	Mon
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9414750)

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What time does the tide turn (slack tide) in Alameda, CA today?

Slack tide in Alameda, CA is approximately 4:29 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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

Alameda, CA is currently in a spring phase. Tonight's moon is 99% 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 Alameda, 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 Alameda, CA?

Tide predictions for Alameda, 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 Alameda, CA?

Tide data for Alameda, CA is sourced from NOAA Station #9414750. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414750.

What is the moon phase in Alameda, CA tonight?

Tonight the moon over Alameda, CA is Full Moon (99% illuminated). This places Alameda, 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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