Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 1h 21m at 5:53 am (-0.4 ft)
Next high tide : 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 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:046.63:117.78:511.29:470.26:397:39Waxing Crescent1Thu
2Fri4:096.13:577.79:371.910:500.26:407:37Waxing Crescent2Fri
3Sat5:245.74:497.610:312.46:417:36First Quarter3Sat
4Sun6:505.65:507.412:020.311:40 AM2.96:427:34First Quarter4Sun
5Mon8:185.66:597.21:180.31:063.16:437:33First Quarter5Mon
6Tue9:295.98:097.22:300.22:273.06:437:31Waxing Gibbous6Tue
7Wed10:226.19:137.13:320.13:342.76:447:30Waxing Gibbous7Wed
8Thu11:056.310:107.14:230.14:282.46:457:28Waxing Gibbous8Thu
9Fri11:416.511:017.05:050.15:152.06:467:27Waxing Gibbous9Fri
10Sat12:136.65:420.35:561.76:477:25Full Moon10Sat
11Sun12:416.66:150.56:341.56:487:24Full Moon11Sun
12Mon12:296.71:066.76:460.87:101.36:487:22Full Moon12Mon
13Tue1:116.51:306.77:161.17:441.16:497:21Full Moon13Tue
14Wed1:526.31:546.87:451.58:191.06:507:19Waning Gibbous14Wed
15Thu2:356.02:206.88:151.98:560.96:517:18Waning Gibbous15Thu
16Fri3:205.72:506.88:462.39:370.96:527:16Waning Gibbous16Fri
17Sat4:125.53:256.79:212.710:240.96:537:14Waning Gibbous17Sat
18Sun5:165.34:076.610:033.011:210.96:537:13Third Quarter18Sun
19Mon6:365.25:006.511:013.36:547:11Third Quarter19Mon
20Tue7:585.36:056.512:280.912:243.46:557:10Third Quarter20Tue
21Wed9:005.57:146.61:380.71:473.36:567:08Third Quarter21Wed
22Thu9:445.78:226.72:380.52:512.96:577:07Waning Crescent22Thu
23Fri10:196.09:246.93:290.33:442.46:587:05Waning Crescent23Fri
24Sat10:526.410:237.04:140.14:311.86:597:04Waning Crescent24Sat
25Sun11:246.811:197.14:560.25:181.16:597:02Waning Crescent25Sun
26Mon11:577.15:360.36:040.57:007:01New Moon26Mon
27Tue12:157.112:327.56:160.76:52-0.17:016:59New Moon27Tue
28Wed1:117.01:097.86:571.17:41-0.57:026:57New Moon28Wed
29Thu2:086.71:497.97:401.68:32-0.67:036:56Waxing Crescent29Thu
30Fri3:096.42:337.98:262.19:27-0.67:046:54Waxing Crescent30Fri
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 9:26 am — 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