Tides Today & Tomorrow in South San Diego Bay, CA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in South San Diego Bay, CA.

Next low tide : in 4h 44m at 7:17 pm (2.1 ft)
Next high tide (tomorrow) : 1:02 am (5.0 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9410135
Common Questions About Tides

South San Diego Bay, CA Tides - Aug 1985

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Sep 1985 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Thu	11:08	4.6	10:15	7.0	4:44	-1.1	4:09	2.1	6:02	7:46		1	Thu
2	Fri	11:42	4.7	10:52	6.5	5:18	-0.8	4:50	2.1	6:03	7:46		2	Fri
3	Sat			12:15	4.7	5:49	-0.3	5:31	2.2	6:04	7:45		3	Sat
4	Sun			12:48	4.8	6:20	0.2	6:15	2.3	6:04	7:44		4	Sun
5	Mon	12:08	5.3	1:23	4.8	6:48	0.8	7:06	2.4	6:05	7:43		5	Mon
6	Tue	12:50	4.6	1:59	4.8	7:16	1.3	8:12	2.5	6:06	7:42		6	Tue
7	Wed	1:43	3.9	2:41	4.8	7:43	1.9	9:38	2.4	6:06	7:41		7	Wed
8	Thu	2:57	3.3	3:31	4.9	8:15	2.4	11:19	2.0	6:07	7:40		8	Thu
9	Fri	5:13	3.0	4:34	5.1	9:12	2.8			6:08	7:39		9	Fri
10	Sat	7:40	3.3	5:38	5.4	12:33	1.4	10:51 AM	3.1	6:08	7:38		10	Sat
11	Sun	8:20	3.6	6:31	5.8	1:22	0.9	12:05	3.1	6:09	7:37		11	Sun
12	Mon	8:46	3.9	7:17	6.2	2:02	0.3	1:00	2.9	6:10	7:36		12	Mon
13	Tue	9:11	4.2	7:59	6.6	2:38	-0.2	1:46	2.6	6:10	7:35		13	Tue
14	Wed	9:37	4.5	8:38	7.0	3:11	-0.6	2:29	2.4	6:11	7:34		14	Wed
15	Thu	10:04	4.7	9:17	7.1	3:44	-0.8	3:10	2.1	6:12	7:33		15	Thu
16	Fri	10:34	5.0	9:56	7.1	4:16	-0.9	3:50	1.8	6:12	7:32		16	Fri
17	Sat	11:05	5.2	10:37	6.8	4:48	-0.8	4:32	1.6	6:13	7:31		17	Sat
18	Sun	11:38	5.4	11:20	6.3	5:20	-0.5	5:18	1.4	6:14	7:30		18	Sun
19	Mon			12:15	5.6	5:52	0.0	6:10	1.3	6:14	7:29		19	Mon
20	Tue	12:10	5.5	12:55	5.8	6:26	0.6	7:12	1.3	6:15	7:27		20	Tue
21	Wed	1:09	4.7	1:41	5.9	7:01	1.3	8:30	1.3	6:16	7:26		21	Wed
22	Thu	2:24	3.9	2:36	5.9	7:42	2.1	10:05	1.1	6:16	7:25		22	Thu
23	Fri	4:15	3.3	3:45	5.9	8:43	2.7	11:42	0.7	6:17	7:24		23	Fri
24	Sat	6:47	3.5	5:04	6.1	10:23	3.1			6:18	7:23		24	Sat
25	Sun	7:55	3.9	6:17	6.4	12:54	0.1	11:55 AM	3.0	6:18	7:22		25	Sun
26	Mon	8:35	4.3	7:15	6.7	1:48	-0.4	1:02	2.7	6:19	7:20		26	Mon
27	Tue	9:07	4.6	8:04	6.9	2:33	-0.7	1:56	2.4	6:20	7:19		27	Tue
28	Wed	9:36	4.9	8:47	7.0	3:10	-0.8	2:42	2.0	6:20	7:18		28	Wed
29	Thu	10:02	5.1	9:25	6.8	3:43	-0.7	3:22	1.7	6:21	7:17		29	Thu
30	Fri	10:28	5.2	10:00	6.6	4:13	-0.5	4:00	1.6	6:22	7:15		30	Fri
31	Sat	10:53	5.3	10:34	6.1	4:40	-0.2	4:35	1.5	6:22	7:14		31	Sat
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 10:09 pm — 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 transitional phase. Tonight's moon is 24% 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 shifting between spring and neap.

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 Waxing Crescent (24% illuminated). This places South San Diego Bay, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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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