Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Sunday, October 11, 2026
The tide is currently falling in South San Francisco, CA.

Next low tide : in 4h 27m at 6:50 am (1.7 ft)
Next high tide : 12:56 pm (7.3 ft)
Sunset today : 6:37 pm
Sunrise tomorrow : 7:14 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Oct 2026

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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	Thu	5:02	5.6	3:36	7.4	9:32	3.1	11:00	-0.2	7:05	6:52		1	Thu
2	Fri	6:25	5.5	4:36	7.2	10:37	3.4			7:06	6:51		2	Fri
3	Sat	7:49	5.6	5:49	7.0	12:13	-0.1	12:08	3.5	7:07	6:49		3	Sat
4	Sun	8:54	5.9	7:10	6.9	1:30	-0.1	1:44	3.3	7:08	6:48		4	Sun
5	Mon	9:42	6.2	8:27	6.8	2:38	-0.1	2:59	2.8	7:08	6:46		5	Mon
6	Tue	10:22	6.5	9:36	6.8	3:34	-0.1	3:58	2.1	7:09	6:45		6	Tue
7	Wed	10:57	6.7	10:37	6.7	4:21	0.1	4:50	1.5	7:10	6:43		7	Wed
8	Thu	11:29	7.0	11:33	6.6	5:02	0.3	5:36	0.9	7:11	6:42		8	Thu
9	Fri			12:00	7.2	5:40	0.7	6:19	0.4	7:12	6:40		9	Fri
10	Sat	12:27	6.5	12:28	7.3	6:15	1.2	6:59	0.1	7:13	6:39		10	Sat
11	Sun	1:18	6.3	12:56	7.3	6:50	1.7	7:39	-0.1	7:14	6:37		11	Sun
12	Mon	2:10	6.1	1:24	7.2	7:26	2.3	8:17	-0.1	7:15	6:36		12	Mon
13	Tue	3:02	5.9	1:52	7.1	8:02	2.7	8:57	0.0	7:16	6:35		13	Tue
14	Wed	3:57	5.7	2:24	6.9	8:40	3.1	9:41	0.1	7:17	6:33		14	Wed
15	Thu	4:59	5.6	3:02	6.7	9:25	3.5	10:30	0.3	7:18	6:32		15	Thu
16	Fri	6:10	5.5	3:49	6.4	10:24	3.7	11:28	0.5	7:19	6:30		16	Fri
17	Sat	7:26	5.5	4:48	6.2	11:52	3.7			7:20	6:29		17	Sat
18	Sun	8:25	5.6	5:59	6.0	12:34	0.6	1:21	3.5	7:21	6:28		18	Sun
19	Mon	9:05	5.7	7:13	5.9	1:38	0.7	2:27	3.2	7:22	6:26		19	Mon
20	Tue	9:35	5.9	8:22	5.9	2:31	0.6	3:18	2.7	7:22	6:25		20	Tue
21	Wed	10:01	6.2	9:24	6.0	3:16	0.6	4:00	2.1	7:23	6:24		21	Wed
22	Thu	10:25	6.5	10:21	6.1	3:54	0.7	4:37	1.5	7:24	6:22		22	Thu
23	Fri	10:50	6.8	11:15	6.1	4:30	0.9	5:14	0.9	7:25	6:21		23	Fri
24	Sat	11:17	7.1			5:05	1.3	5:51	0.2	7:26	6:20		24	Sat
25	Sun	12:09	6.2	11:45 AM	7.4	5:40	1.6	6:30	-0.3	7:27	6:19		25	Sun
26	Mon	1:03	6.2	12:17	7.7	6:17	2.1	7:13	-0.8	7:28	6:18		26	Mon
27	Tue	1:59	6.2	12:53	7.9	6:57	2.5	7:58	-1.0	7:29	6:16		27	Tue
28	Wed	2:57	6.1	1:34	7.9	7:40	2.9	8:48	-1.1	7:30	6:15		28	Wed
29	Thu	3:59	6.0	2:21	7.7	8:28	3.2	9:43	-1.0	7:32	6:14		29	Thu
30	Fri	5:05	5.9	3:17	7.5	9:28	3.4	10:45	-0.7	7:33	6:13		30	Fri
31	Sat	6:13	5.9	4:22	7.0	10:46	3.4	11:52	-0.4	7:34	6:12		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: (9414391)

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When is the lowest tide this week in South San Francisco, CA?

The lowest tide this week in South San Francisco, CA is -0.1 ft on Monday, Oct 12 at 8:17 pm.

When is the highest tide this week in South San Francisco, CA?

The highest tide this week in South San Francisco, CA is 7.3 ft on Sunday, Oct 11 at 12:56 pm — worth noting for launching your boat and being alert for possible high tide flooding.

Is this week a spring tide or neap tide in South San Francisco, CA?

South San Francisco, CA is currently in a spring phase. Tonight's moon is 1% 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 Francisco, 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 Francisco, CA?

Tide predictions for South San Francisco, 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 Francisco, CA?

Tide data for South San Francisco, CA is sourced from NOAA Station #9414391. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414391.

What time is high tide in South San Francisco, CA today?

High tides in South San Francisco, CA today: 1:18 am (6.3 ft), 12:56 pm (7.3 ft). The 12:56 pm high of 7.3 ft is notably higher than the other — known as diurnal inequality, common on coasts influenced by lunar declination.

What time is low tide in South San Francisco, CA today?

Low tides in South San Francisco, CA today: 6:50 am (1.7 ft), 7:39 pm (-0.1 ft). The 7:39 pm low of -0.1 ft is a minus tide — water below the MLLW reference datum, which can expose tidepools, mudflats, and shellfish beds not normally accessible.

What is the tidal range in South San Francisco, CA today?

Today's tidal range in South San Francisco, CA is 7.4 ft — the difference between the day's highest and lowest water level. This month's average daily range is about 6.7 ft, so today's swing is above-average.

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

Tonight the moon over South San Francisco, CA is New Moon (1% illuminated). This places South San Francisco, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

What type of tides does South San Francisco, CA have — semi-diurnal, diurnal, or mixed?

South San Francisco, CA has semi-diurnal tides — two high tides and two low tides roughly every 24 hours and 50 minutes, with similar heights.

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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