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 21m 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 - Sep 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:406.410:437.44:57-0.34:572.46:407:38Waxing Gibbous1Sun
2Mon12:156.55:38-0.25:442.06:407:37Full Moon2Mon
3Tue12:476.76:150.06:281.76:417:36Full Moon3Tue
4Wed12:207.11:166.76:490.37:091.46:427:34Full Moon4Wed
5Thu1:056.81:426.87:210.77:481.26:437:33Full Moon5Thu
6Fri1:496.52:086.87:521.18:261.16:447:31Waning Gibbous6Fri
7Sat2:346.12:346.88:231.69:061.06:457:29Waning Gibbous7Sat
8Sun3:225.83:026.88:562.19:481.06:457:28Waning Gibbous8Sun
9Mon4:165.53:346.89:302.610:371.06:467:26Waning Gibbous9Mon
10Tue5:235.24:156.710:113.011:361.16:477:25Third Quarter10Tue
11Wed6:505.15:066.511:073.46:487:23Third Quarter11Wed
12Thu8:245.26:086.512:461.112:323.56:497:22Third Quarter12Thu
13Fri9:275.47:166.51:560.91:563.56:507:20Third Quarter13Fri
14Sat10:075.68:206.72:560.62:593.26:507:19Waning Crescent14Sat
15Sun10:395.89:196.83:440.43:482.86:517:17Waning Crescent15Sun
16Mon11:076.110:137.04:250.24:322.36:527:16Waning Crescent16Mon
17Tue11:356.411:057.15:020.15:131.86:537:14Waning Crescent17Tue
18Wed12:046.75:380.25:561.26:547:13New Moon18Wed
19Thu12:347.16:140.46:400.66:557:11New Moon19Thu
20Fri12:497.01:067.46:500.87:260.16:557:09New Moon20Fri
21Sat1:446.81:417.67:291.38:15-0.26:567:08Waxing Crescent21Sat
22Sun2:426.52:207.88:101.89:07-0.46:577:06Waxing Crescent22Sun
23Mon3:466.13:047.78:552.310:05-0.36:587:05Waxing Crescent23Mon
24Tue4:575.83:557.69:482.811:11-0.26:597:03First Quarter24Tue
25Wed6:175.74:577.310:563.17:007:02First Quarter25Wed
26Thu7:395.76:087.012:240.012:263.37:017:00First Quarter26Thu
27Fri8:485.97:256.91:390.11:553.07:016:59First Quarter27Fri
28Sat9:416.28:386.82:460.13:072.67:026:57Waxing Gibbous28Sat
29Sun10:246.49:426.73:400.24:042.17:036:55Waxing Gibbous29Sun
30Mon11:006.610:396.74:260.34:531.67:046:54Waxing Gibbous30Mon
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