Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide (tomorrow) : in 5h 55m at 12:24 am (2.0 ft)
Next high tide (tomorrow) : 5:47 am (5.1 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jul 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:375.97:027.012:132.112:060.35:518:35First Quarter1Thu
2Fri7:015.57:507.31:291.61:030.95:528:35First Quarter2Fri
3Sat8:305.38:387.52:381.02:031.45:528:35Waxing Gibbous3Sat
4Sun9:525.49:257.73:390.43:011.95:538:34Waxing Gibbous4Sun
5Mon11:035.610:117.94:33-0.23:582.25:538:34Waxing Gibbous5Mon
6Tue12:035.95:22-0.64:522.55:548:34Waxing Gibbous6Tue
7Wed12:566.16:07-0.95:442.75:558:34Full Moon7Wed
8Thu1:436.26:49-1.06:332.85:558:33Full Moon8Thu
9Fri12:227.72:276.27:30-0.97:212.85:568:33Full Moon9Fri
10Sat1:047.53:086.38:09-0.88:082.85:568:33Full Moon10Sat
11Sun1:447.23:466.28:47-0.68:562.85:578:32Waning Gibbous11Sun
12Mon2:256.84:236.29:25-0.39:462.85:588:32Waning Gibbous12Mon
13Tue3:076.45:006.210:030.110:412.75:588:31Waning Gibbous13Tue
14Wed3:546.05:366.310:420.511:432.55:598:31Waning Gibbous14Wed
15Thu4:485.56:156.411:241.06:008:30Third Quarter15Thu
16Fri5:565.16:556.512:502.312:111.56:018:30Third Quarter16Fri
17Sat7:204.97:366.71:541.91:031.96:018:29Third Quarter17Sat
18Sun8:494.98:196.92:511.51:582.36:028:29Third Quarter18Sun
19Mon10:055.19:027.13:411.02:532.66:038:28Waning Crescent19Mon
20Tue11:055.39:457.44:240.53:442.86:048:28Waning Crescent20Tue
21Wed11:555.610:297.65:050.04:332.96:048:27Waning Crescent21Wed
22Thu12:385.95:44-0.45:192.96:058:26New Moon22Thu
23Fri1:196.16:24-0.86:052.86:068:25New Moon23Fri
24Sat1:596.37:04-1.06:522.66:078:25New Moon24Sat
25Sun12:457.92:396.47:46-1.17:422.56:078:24New Moon25Sun
26Mon1:337.83:196.68:28-1.08:352.36:088:23Waxing Crescent26Mon
27Tue2:257.54:006.89:12-0.79:342.06:098:22Waxing Crescent27Tue
28Wed3:207.04:447.09:57-0.210:381.86:108:21Waxing Crescent28Wed
29Thu4:236.45:307.110:460.411:501.56:118:20First Quarter29Thu
30Fri5:365.96:207.311:391.16:128:20First Quarter30Fri
31Sat7:035.57:137.41:061.112:391.76:128:19First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414391)

Common Questions About South San Francisco, CA Tides

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

Slack tide in South San Francisco, CA is approximately 3:05 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 transitional phase. Tonight's moon is 61% 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 is the moon phase in South San Francisco, CA tonight?

Tonight the moon over South San Francisco, CA is Third Quarter (61% illuminated). This places South San Francisco, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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