Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 11:11 pm (2.4 ft)
Next high tide : in 4h 06m at 5:33 pm (6.5 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Nov 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:436.21:317.37:452.68:33-0.47:346:11Waning Gibbous1Sat
2Sun2:336.01:087.07:302.98:14-0.26:355:10Waning Gibbous2Sun
3Mon3:235.91:486.78:193.18:580.06:365:09Waning Gibbous3Mon
4Tue4:165.82:336.49:173.29:470.36:385:08Waning Gibbous4Tue
5Wed5:105.83:256.010:273.210:400.66:395:07Third Quarter5Wed
6Thu6:035.84:285.711:433.011:360.86:405:06Third Quarter6Thu
7Fri6:495.95:415.512:522.76:415:05Third Quarter7Fri
8Sat7:296.16:565.412:311.01:492.26:425:04Third Quarter8Sat
9Sun8:036.48:065.41:221.22:351.76:435:03Waning Crescent9Sun
10Mon8:366.79:085.52:081.43:161.16:445:02Waning Crescent10Mon
11Tue9:077.010:035.72:491.63:530.66:455:01Waning Crescent11Tue
12Wed9:397.210:565.93:291.94:300.06:465:00Waning Crescent12Wed
13Thu10:137.511:466.04:082.15:08-0.56:475:00New Moon13Thu
14Fri10:507.74:492.35:48-0.86:484:59New Moon14Fri
15Sat12:366.111:29 AM7.85:312.56:30-1.16:494:58New Moon15Sat
16Sun1:256.212:127.86:162.77:16-1.26:504:57Waxing Crescent16Sun
17Mon2:176.212:597.77:062.88:04-1.16:514:57Waxing Crescent17Mon
18Tue3:096.21:527.48:032.88:56-0.96:524:56Waxing Crescent18Tue
19Wed4:046.22:516.99:112.89:51-0.56:534:56Waxing Crescent19Wed
20Thu4:596.44:006.410:312.710:50-0.16:544:55First Quarter20Thu
21Fri5:546.65:186.011:562.311:510.46:554:54First Quarter21Fri
22Sat6:456.86:435.71:121.76:564:54First Quarter22Sat
23Sun7:347.18:055.612:510.92:161.06:584:53Waxing Gibbous23Sun
24Mon8:187.49:175.71:481.33:110.46:594:53Waxing Gibbous24Mon
25Tue8:597.610:205.92:401.73:58-0.17:004:53Waxing Gibbous25Tue
26Wed9:387.711:166.03:292.04:42-0.57:014:52Waxing Gibbous26Wed
27Thu10:157.74:162.35:22-0.77:024:52Full Moon27Thu
28Fri12:066.110:51 AM7.65:002.65:59-0.77:034:52Full Moon28Fri
29Sat12:536.111:27 AM7.55:432.86:36-0.77:044:51Full Moon29Sat
30Sun1:366.112:027.36:262.97:12-0.67:044:51Full Moon30Sun
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 8:22 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 28% 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 Waxing Crescent (28% 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