Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 5:14 pm (3.3 ft)
Next high tide : in 4h 39m at 1:00 pm (5.6 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Sep 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:107.62:107.07:43-0.38:011.16:407:38Waning Gibbous1Mon
2Tue2:057.22:447.38:210.38:550.76:417:37Waning Gibbous2Tue
3Wed3:046.73:217.59:011.09:530.56:417:35Waning Gibbous3Wed
4Thu4:116.14:027.69:441.810:570.36:427:34Waning Gibbous4Thu
5Fri5:305.74:497.510:342.56:437:32Third Quarter5Fri
6Sat7:055.55:477.412:090.311:39 AM3.16:447:31Third Quarter6Sat
7Sun8:415.66:547.21:270.21:053.46:457:29Third Quarter7Sun
8Mon9:535.98:057.22:410.12:313.46:467:28Waning Crescent8Mon
9Tue10:456.19:117.23:44-0.13:393.16:467:26Waning Crescent9Tue
10Wed11:266.310:087.24:37-0.14:342.86:477:25Waning Crescent10Wed
11Thu12:026.45:20-0.15:202.46:487:23Waning Crescent11Thu
12Fri12:336.45:560.06:012.16:497:21New Moon12Fri
13Sat1:006.56:290.26:381.86:507:20New Moon13Sat
14Sun12:256.81:246.56:580.57:141.66:517:18New Moon14Sun
15Mon1:056.61:466.67:250.87:491.36:517:17New Moon15Mon
16Tue1:466.32:076.67:511.38:241.16:527:15Waxing Crescent16Tue
17Wed2:286.02:296.78:181.79:011.06:537:14Waxing Crescent17Wed
18Thu3:155.72:546.78:462.29:410.96:547:12Waxing Crescent18Thu
19Fri4:095.43:246.79:152.710:280.96:557:11Waxing Crescent19Fri
20Sat5:195.24:036.69:503.211:260.96:567:09First Quarter20Sat
21Sun6:555.14:536.510:413.66:567:08First Quarter21Sun
22Mon8:395.35:596.512:360.812:143.86:577:06First Quarter22Mon
23Tue9:395.57:126.61:490.61:543.76:587:04First Quarter23Tue
24Wed10:165.78:226.82:520.33:013.46:597:03Waxing Gibbous24Wed
25Thu10:476.09:257.03:450.03:522.97:007:01Waxing Gibbous25Thu
26Fri11:166.210:237.24:30-0.34:382.37:017:00Waxing Gibbous26Fri
27Sat11:456.611:197.35:11-0.35:241.67:026:58Waxing Gibbous27Sat
28Sun12:156.95:50-0.16:100.97:026:57Full Moon28Sun
29Mon12:147.212:467.36:290.26:570.37:036:55Full Moon29Mon
30Tue1:107.01:207.67:070.87:46-0.27:046:54Full Moon30Tue
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 3:07 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 96% 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 Waxing Gibbous (96% 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