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 1h 02m at 1:29 pm (1.2 ft)
Next high tide : 8:12 pm (6.8 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Apr 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:227.64:075.89:20-0.99:032.36:537:32Waxing Crescent1Tue
2Wed3:057.55:225.510:18-0.89:582.86:527:33Waxing Crescent2Wed
3Thu3:557.36:475.411:24-0.611:123.26:507:34First Quarter3Thu
4Fri4:566.98:095.612:39-0.46:497:35First Quarter4Fri
5Sat6:106.59:135.812:493.21:54-0.26:477:36First Quarter5Sat
6Sun7:306.310:016.02:183.03:00-0.16:467:37First Quarter6Sun
7Mon8:456.110:406.23:262.53:53-0.16:447:38Waxing Gibbous7Mon
8Tue9:496.111:136.34:212.04:360.16:437:39Waxing Gibbous8Tue
9Wed10:456.011:406.45:061.55:120.46:427:39Waxing Gibbous9Wed
10Thu11:356.05:461.05:440.76:407:40Waxing Gibbous10Thu
11Fri12:046.512:215.86:220.66:141.16:397:41Full Moon11Fri
12Sat12:266.61:065.76:550.36:421.56:377:42Full Moon12Sat
13Sun12:476.71:505.67:270.17:101.96:367:43Full Moon13Sun
14Mon1:096.72:355.57:59-0.17:382.36:347:44Full Moon14Mon
15Tue1:336.83:225.48:33-0.28:082.76:337:45Waning Gibbous15Tue
16Wed2:006.74:145.29:10-0.28:413.06:327:46Waning Gibbous16Wed
17Thu2:336.65:155.19:52-0.29:193.36:307:47Waning Gibbous17Thu
18Fri3:126.46:285.110:43-0.110:143.46:297:48Waning Gibbous18Fri
19Sat4:026.37:415.111:430.011:413.56:287:49Third Quarter19Sat
20Sun5:056.18:355.312:480.06:267:49Third Quarter20Sun
21Mon6:205.99:135.61:183.31:51-0.16:257:50Third Quarter21Mon
22Tue7:395.99:445.92:302.82:45-0.16:247:51Third Quarter22Tue
23Wed8:536.010:146.33:262.13:330.06:227:52Waning Crescent23Wed
24Thu10:016.010:456.74:151.34:170.26:217:53Waning Crescent24Thu
25Fri11:056.111:167.15:020.44:590.66:207:54Waning Crescent25Fri
26Sat12:076.25:49-0.45:411.16:197:55New Moon26Sat
27Sun1:086.26:35-1.06:231.66:177:56New Moon27Sun
28Mon12:267.82:096.17:24-1.57:082.16:167:57New Moon28Mon
29Tue1:067.93:106.08:13-1.67:562.66:157:58Waxing Crescent29Tue
30Wed1:497.84:145.99:06-1.68:502.96:147:59Waxing Crescent30Wed
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 4:50 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 transitional phase. Tonight's moon is 35% 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 (35% 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