Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 3h 25m at 2:12 am (1.8 ft)
Next high tide : 7:31 am (5.0 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Sep 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:355.93:307.39:101.810:150.76:407:38Waning Gibbous1Tue
2Wed4:445.54:107.39:502.411:190.56:407:37Third Quarter2Wed
3Thu6:125.25:017.310:413.06:417:35Third Quarter3Thu
4Fri7:555.36:057.312:330.411:53 AM3.46:427:34Third Quarter4Fri
5Sat9:205.57:197.41:520.11:253.56:437:32Third Quarter5Sat
6Sun10:165.88:317.53:03-0.12:483.36:447:31Waning Crescent6Sun
7Mon11:006.19:387.64:02-0.43:542.96:457:29Waning Crescent7Mon
8Tue11:376.410:377.64:52-0.54:502.36:457:28Waning Crescent8Tue
9Wed12:126.65:35-0.55:411.86:467:26New Moon9Wed
10Thu12:456.86:14-0.26:281.46:477:25New Moon10Thu
11Fri12:247.31:167.06:510.17:141.06:487:23New Moon11Fri
12Sat1:156.91:477.17:260.67:590.76:497:22New Moon12Sat
13Sun2:066.52:167.18:011.28:440.66:507:20Waxing Crescent13Sun
14Mon2:596.12:467.18:361.99:300.66:507:19Waxing Crescent14Mon
15Tue3:575.83:187.09:132.510:190.66:517:17Waxing Crescent15Tue
16Wed5:045.53:546.89:553.011:150.86:527:15Waxing Crescent16Wed
17Thu6:305.34:406.610:513.46:537:14First Quarter17Thu
18Fri8:105.35:396.412:220.912:173.76:547:12First Quarter18Fri
19Sat9:225.56:496.31:340.91:483.66:557:11First Quarter19Sat
20Sun10:065.77:586.42:390.72:543.46:557:09First Quarter20Sun
21Mon10:385.88:586.53:320.53:443.06:567:08Waxing Gibbous21Mon
22Tue11:046.09:516.64:140.44:252.66:577:06Waxing Gibbous22Tue
23Wed11:276.210:396.74:500.35:022.26:587:05Waxing Gibbous23Wed
24Thu11:506.411:266.75:220.35:381.76:597:03Waxing Gibbous24Thu
25Fri12:136.65:520.56:131.27:007:01Full Moon25Fri
26Sat12:126.712:386.96:220.86:500.87:017:00Full Moon26Sat
27Sun1:006.61:057.26:541.27:300.37:016:58Full Moon27Sun
28Mon1:516.41:357.47:271.68:140.07:026:57Waning Gibbous28Mon
29Tue2:476.12:087.58:042.29:02-0.27:036:55Waning Gibbous29Tue
30Wed3:495.92:487.58:442.79:56-0.37:046:54Waning Gibbous30Wed
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 4:51 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 neap phase. Tonight's moon is 46% 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 minimum.

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 (46% illuminated). This places South San Francisco, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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