Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 2h 46m at 3:43 am (0.5 ft)
Next high tide : 10:04 am (4.9 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Apr 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:286.09:045.212:033.31:120.66:547:32First Quarter1Fri
2Sat6:375.99:525.41:383.32:190.46:527:33First Quarter2Sat
3Sun7:496.010:275.62:493.13:150.26:517:34First Quarter3Sun
4Mon8:546.210:575.93:412.74:020.06:497:35Waxing Gibbous4Mon
5Tue9:536.411:256.14:242.24:44-0.26:487:35Waxing Gibbous5Tue
6Wed10:476.511:546.45:041.75:22-0.26:467:36Waxing Gibbous6Wed
7Thu11:396.65:451.15:590.06:457:37Full Moon7Thu
8Fri12:246.712:326.66:260.46:370.36:447:38Full Moon8Fri
9Sat12:557.01:266.57:10-0.17:160.76:427:39Full Moon9Sat
10Sun1:287.32:236.37:57-0.67:561.36:417:40Waning Gibbous10Sun
11Mon2:047.43:236.18:46-0.88:401.86:397:41Waning Gibbous11Mon
12Tue2:447.44:305.89:40-0.99:292.46:387:42Waning Gibbous12Tue
13Wed3:307.35:465.610:40-0.810:312.86:367:43Waning Gibbous13Wed
14Thu4:247.07:085.611:47-0.611:553.16:357:44Third Quarter14Thu
15Fri5:316.78:235.81:00-0.46:347:45Third Quarter15Fri
16Sat6:476.49:226.01:303.02:11-0.36:327:45Third Quarter16Sat
17Sun8:066.210:096.22:492.63:13-0.26:317:46Waning Crescent17Sun
18Mon9:176.110:486.43:522.14:04-0.16:297:47Waning Crescent18Mon
19Tue10:206.111:226.64:431.54:480.16:287:48Waning Crescent19Tue
20Wed11:156.111:516.75:281.15:260.46:277:49Waning Crescent20Wed
21Thu12:056.06:080.66:010.86:257:50New Moon21Thu
22Fri12:186.712:525.96:440.36:341.26:247:51New Moon22Fri
23Sat12:436.71:375.87:180.17:061.66:237:52New Moon23Sat
24Sun1:066.72:235.67:51-0.17:382.06:227:53New Moon24Sun
25Mon1:306.73:095.58:24-0.28:112.46:207:54Waxing Crescent25Mon
26Tue1:576.73:595.49:00-0.28:462.86:197:55Waxing Crescent26Tue
27Wed2:276.64:545.39:39-0.29:273.16:187:56Waxing Crescent27Wed
28Thu3:036.45:575.210:24-0.110:203.36:177:56Waxing Crescent28Thu
29Fri3:476.27:055.311:160.111:363.46:157:57First Quarter29Fri
30Sat4:425.98:065.412:170.16:147:58First Quarter30Sat
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 6:53 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 77% 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 Gibbous (77% 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