Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in South San Francisco, CA.

Next low tide : 10:41 am (3.0 ft)
Next high tide : in 6h 31m at 6:12 am (5.2 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 6:40 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Sep 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	Tue	3:35	5.9	3:30	7.3	9:10	1.8	10:15	0.7	6:40	7:38		1	Tue
2	Wed	4:44	5.5	4:10	7.3	9:50	2.4	11:19	0.5	6:40	7:37		2	Wed
3	Thu	6:12	5.2	5:01	7.3	10:41	3.0			6:41	7:35		3	Thu
4	Fri	7:55	5.3	6:05	7.3	12:33	0.4	11:53 AM	3.4	6:42	7:34		4	Fri
5	Sat	9:20	5.5	7:19	7.4	1:52	0.1	1:25	3.5	6:43	7:32		5	Sat
6	Sun	10:16	5.8	8:31	7.5	3:03	-0.1	2:48	3.3	6:44	7:31		6	Sun
7	Mon	11:00	6.1	9:38	7.6	4:02	-0.4	3:54	2.9	6:45	7:29		7	Mon
8	Tue	11:37	6.4	10:37	7.6	4:52	-0.5	4:50	2.3	6:45	7:28		8	Tue
9	Wed			12:12	6.6	5:35	-0.5	5:41	1.8	6:46	7:26		9	Wed
10	Thu			12:45	6.8	6:14	-0.2	6:28	1.4	6:47	7:25		10	Thu
11	Fri	12:24	7.3	1:16	7.0	6:51	0.1	7:14	1.0	6:48	7:23		11	Fri
12	Sat	1:15	6.9	1:47	7.1	7:26	0.6	7:59	0.7	6:49	7:22		12	Sat
13	Sun	2:06	6.5	2:16	7.1	8:01	1.2	8:44	0.6	6:50	7:20		13	Sun
14	Mon	2:59	6.1	2:46	7.1	8:36	1.9	9:30	0.6	6:50	7:19		14	Mon
15	Tue	3:57	5.8	3:18	7.0	9:13	2.5	10:19	0.6	6:51	7:17		15	Tue
16	Wed	5:04	5.5	3:54	6.8	9:55	3.0	11:15	0.8	6:52	7:15		16	Wed
17	Thu	6:30	5.3	4:40	6.6	10:51	3.4			6:53	7:14		17	Thu
18	Fri	8:10	5.3	5:39	6.4	12:22	0.9	12:17	3.7	6:54	7:12		18	Fri
19	Sat	9:22	5.5	6:49	6.3	1:34	0.9	1:48	3.6	6:55	7:11		19	Sat
20	Sun	10:06	5.7	7:58	6.4	2:39	0.7	2:54	3.4	6:55	7:09		20	Sun
21	Mon	10:38	5.8	8:58	6.5	3:32	0.5	3:44	3.0	6:56	7:08		21	Mon
22	Tue	11:04	6.0	9:51	6.6	4:14	0.4	4:25	2.6	6:57	7:06		22	Tue
23	Wed	11:27	6.2	10:39	6.7	4:50	0.3	5:02	2.2	6:58	7:05		23	Wed
24	Thu	11:50	6.4	11:26	6.7	5:22	0.3	5:38	1.7	6:59	7:03		24	Thu
25	Fri			12:13	6.6	5:52	0.5	6:13	1.2	7:00	7:01		25	Fri
26	Sat	12:12	6.7	12:38	6.9	6:22	0.8	6:50	0.8	7:01	7:00		26	Sat
27	Sun	1:00	6.6	1:05	7.2	6:54	1.2	7:30	0.3	7:01	6:58		27	Sun
28	Mon	1:51	6.4	1:35	7.4	7:27	1.6	8:14	0.0	7:02	6:57		28	Mon
29	Tue	2:47	6.1	2:08	7.5	8:04	2.2	9:02	-0.2	7:03	6:55		29	Tue
30	Wed	3:49	5.9	2:48	7.5	8:44	2.7	9:56	-0.3	7:04	6:54		30	Wed
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 -0.5 ft on Tuesday, Sep 8 at 4:52 am.

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

The highest tide this week in South San Francisco, CA is 7.6 ft on Tuesday, Sep 8 at 10:37 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 transitional phase. Tonight's moon is 67% 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 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: 6:12 am (5.2 ft), 5:01 pm (7.3 ft). The 5:01 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: 10:41 am (3.0 ft).

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

Today's tidal range in South San Francisco, CA is 4.4 ft — the difference between the day's highest and lowest water level. This month's average daily range is about 6.6 ft, so today's swing is below-average.

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

Tonight the moon over South San Francisco, CA is Third Quarter (67% illuminated). This places South San Francisco, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

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

South San Francisco, CA has mixed tides — two high tides and two low tides per day with noticeably different heights — common on the U.S. West Coast.

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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