Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in South San Diego Bay, CA.

Next low tide : in 6h 32m at 5:15 am (-0.4 ft)
Next high tide : 11:37 am (4.8 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:01 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Aug 2082

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Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Sat	3:14	3.5	3:27	6.0	8:23	2.1	11:10	0.9	6:03	7:46		1	Sat
2	Sun	5:27	3.2	4:37	6.2	9:33	2.6			6:04	7:45		2	Sun
3	Mon	7:28	3.4	5:49	6.4	12:32	0.3	11:05 AM	2.9	6:04	7:44		3	Mon
4	Tue	8:25	3.8	6:51	6.8	1:34	-0.2	12:23	2.9	6:05	7:43		4	Tue
5	Wed	9:04	4.2	7:44	7.0	2:23	-0.7	1:26	2.6	6:06	7:43		5	Wed
6	Thu	9:36	4.5	8:30	7.1	3:05	-0.9	2:18	2.4	6:06	7:42		6	Thu
7	Fri	10:06	4.7	9:11	7.1	3:41	-1.0	3:04	2.1	6:07	7:41		7	Fri
8	Sat	10:33	4.9	9:48	6.9	4:13	-0.9	3:45	1.9	6:08	7:40		8	Sat
9	Sun	11:00	5.0	10:23	6.5	4:42	-0.6	4:23	1.8	6:08	7:39		9	Sun
10	Mon	11:27	5.1	10:57	6.0	5:09	-0.2	5:00	1.8	6:09	7:38		10	Mon
11	Tue	11:53	5.1	11:31	5.4	5:34	0.2	5:37	1.8	6:10	7:37		11	Tue
12	Wed			12:21	5.1	5:57	0.8	6:17	1.9	6:10	7:36		12	Wed
13	Thu	12:07	4.7	12:51	5.1	6:17	1.3	7:05	2.0	6:11	7:35		13	Thu
14	Fri	12:49	4.0	1:24	5.1	6:32	1.9	8:10	2.1	6:12	7:34		14	Fri
15	Sat	1:46	3.4	2:06	5.0	6:40	2.3	9:45	2.1	6:12	7:33		15	Sat
16	Sun	3:23	2.9	3:05	5.0	6:24	2.7	11:36	1.7	6:13	7:32		16	Sun
17	Mon			4:25	5.1					6:14	7:30		17	Mon
18	Tue	8:33	3.5	5:40	5.5	12:44	1.2	11:03 AM	3.4	6:14	7:29		18	Tue
19	Wed	8:30	3.8	6:37	6.0	1:27	0.6	12:20	3.1	6:15	7:28		19	Wed
20	Thu	8:43	4.2	7:24	6.5	2:03	0.0	1:13	2.8	6:16	7:27		20	Thu
21	Fri	9:04	4.5	8:07	6.9	2:36	-0.4	1:58	2.3	6:16	7:26		21	Fri
22	Sat	9:28	4.9	8:48	7.1	3:08	-0.7	2:42	1.9	6:17	7:25		22	Sat
23	Sun	9:55	5.3	9:29	7.1	3:40	-0.9	3:24	1.4	6:18	7:23		23	Sun
24	Mon	10:24	5.7	10:11	6.9	4:11	-0.8	4:07	1.0	6:18	7:22		24	Mon
25	Tue	10:55	6.0	10:55	6.3	4:42	-0.4	4:52	0.7	6:19	7:21		25	Tue
26	Wed	11:29	6.2	11:44	5.6	5:13	0.1	5:41	0.6	6:20	7:20		26	Wed
27	Thu			12:07	6.3	5:44	0.7	6:38	0.7	6:20	7:19		27	Thu
28	Fri	12:40	4.7	12:50	6.3	6:15	1.5	7:47	0.8	6:21	7:17		28	Fri
29	Sat	1:51	3.8	1:43	6.1	6:48	2.2	9:16	0.9	6:22	7:16		29	Sat
30	Sun	3:36	3.3	2:50	5.9	7:31	2.8	11:02	0.7	6:22	7:15		30	Sun
31	Mon	6:53	3.5	4:17	5.9	9:22	3.3			6:23	7:14		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: (9410135)

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What time does the tide turn (slack tide) in South San Diego Bay, CA today?

Slack tide in South San Diego Bay, CA is approximately 8:26 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 South San Diego Bay, CA?

South San Diego Bay, 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 South San Diego Bay, 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 South San Diego Bay, CA?

Tide predictions for South San Diego Bay, 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 South San Diego Bay, CA?

Tide data for South San Diego Bay, CA is sourced from NOAA Station #9410135. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410135.

What is the moon phase in South San Diego Bay, CA tonight?

Tonight the moon over South San Diego Bay, CA is Full Moon (99% illuminated). This places South San Diego Bay, 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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