Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 3h 57m at 8:42 am (-0.7 ft)
Next high tide : 3:49 pm (5.9 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jun 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:535.28:357.02:251.31:530.95:498:25First Quarter1Mon
2Tue9:195.19:167.33:270.72:451.55:488:26Waxing Gibbous2Tue
3Wed10:365.29:547.44:200.13:362.05:488:26Waxing Gibbous3Wed
4Thu11:415.410:317.45:07-0.34:242.45:488:27Waxing Gibbous4Thu
5Fri12:385.65:49-0.65:112.85:488:28Full Moon5Fri
6Sat1:275.76:27-0.85:553.05:478:28Full Moon6Sat
7Sun2:115.77:03-0.86:383.15:478:29Full Moon7Sun
8Mon12:177.22:525.77:39-0.87:193.25:478:29Full Moon8Mon
9Tue12:537.13:295.78:14-0.88:003.25:478:30Full Moon9Tue
10Wed1:306.94:055.78:50-0.78:433.25:478:30Waning Gibbous10Wed
11Thu2:086.74:405.79:25-0.59:313.15:478:31Waning Gibbous11Thu
12Fri2:496.45:145.810:02-0.310:273.05:478:31Waning Gibbous12Fri
13Sat3:336.05:495.910:400.011:312.85:478:32Waning Gibbous13Sat
14Sun4:265.56:246.111:200.45:478:32Third Quarter14Sun
15Mon5:325.17:006.412:392.412:030.95:478:32Third Quarter15Mon
16Tue6:554.87:366.71:441.912:501.45:478:33Third Quarter16Tue
17Wed8:284.78:157.02:411.31:421.95:478:33Third Quarter17Wed
18Thu9:554.98:567.43:310.52:362.45:478:33Waning Crescent18Thu
19Fri11:075.29:407.74:19-0.23:312.75:478:34Waning Crescent19Fri
20Sat12:075.55:06-0.84:252.95:488:34Waning Crescent20Sat
21Sun1:005.85:53-1.35:193.05:488:34New Moon21Sun
22Mon1:486.06:41-1.76:133.05:488:34New Moon22Mon
23Tue12:088.32:346.17:29-1.87:092.95:488:34New Moon23Tue
24Wed1:008.23:186.38:17-1.88:082.75:498:35Waxing Crescent24Wed
25Thu1:547.94:026.59:04-1.59:112.55:498:35Waxing Crescent25Thu
26Fri2:517.44:466.69:50-1.010:202.25:498:35Waxing Crescent26Fri
27Sat3:506.75:306.810:37-0.411:331.95:508:35First Quarter27Sat
28Sun4:586.06:157.011:250.35:508:35First Quarter28Sun
29Mon6:175.37:017.212:491.512:161.15:508:35First Quarter29Mon
30Tue7:495.07:477.32:011.01:111.85:518:35First Quarter30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414391)

Common Questions About South San Francisco, CA Tides

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

Slack tide in South San Francisco, CA is approximately 12:15 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 Francisco, CA?

South San Francisco, CA is currently in a spring phase. Tonight's moon is 93% 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 is the moon phase in South San Francisco, CA tonight?

Tonight the moon over South San Francisco, CA is Waning Gibbous (93% illuminated). This places South San Francisco, 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