Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide (tomorrow) : 4:32 am (0.1 ft)
Next high tide : in 5h 29m at 9:05 pm (7.2 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 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:567.14:385.59:50-0.49:312.56:537:33Waning Gibbous1Sun
2Mon3:387.15:585.310:49-0.410:272.96:517:33Waning Gibbous2Mon
3Tue4:306.97:295.311:58-0.411:463.26:507:34Third Quarter3Tue
4Wed5:366.78:475.51:13-0.46:487:35Third Quarter4Wed
5Thu6:556.69:445.81:263.22:26-0.46:477:36Third Quarter5Thu
6Fri8:156.510:276.12:502.83:28-0.56:457:37Waning Crescent6Fri
7Sat9:266.611:056.43:542.24:20-0.56:447:38Waning Crescent7Sat
8Sun10:296.611:406.64:481.65:05-0.36:427:39Waning Crescent8Sun
9Mon11:266.65:361.05:450.06:417:40New Moon9Mon
10Tue12:126.812:206.46:200.56:230.46:407:41New Moon10Tue
11Wed12:426.91:116.27:020.16:590.96:387:42New Moon11Wed
12Thu1:117.02:026.07:43-0.17:351.46:377:43New Moon12Thu
13Fri1:397.02:545.88:22-0.38:121.96:357:43Waxing Crescent13Fri
14Sat2:076.93:485.69:02-0.38:502.46:347:44Waxing Crescent14Sat
15Sun2:376.74:485.49:44-0.29:332.96:327:45Waxing Crescent15Sun
16Mon3:106.55:585.210:310.010:263.26:317:46Waxing Crescent16Mon
17Tue3:516.27:175.211:260.211:443.46:307:47First Quarter17Tue
18Wed4:436.08:285.312:300.36:287:48First Quarter18Wed
19Thu5:505.79:175.51:153.31:360.46:277:49First Quarter19Thu
20Fri7:055.69:525.72:273.12:350.36:267:50First Quarter20Fri
21Sat8:165.610:205.83:222.63:230.36:247:51Waxing Gibbous21Sat
22Sun9:195.710:456.14:062.14:040.36:237:52Waxing Gibbous22Sun
23Mon10:165.811:116.34:441.64:410.46:227:53Waxing Gibbous23Mon
24Tue11:095.911:376.65:201.05:150.66:217:54Waxing Gibbous24Tue
25Wed12:016.05:570.45:500.96:197:54Full Moon25Wed
26Thu12:046.912:546.06:35-0.26:251.36:187:55Full Moon26Thu
27Fri12:347.21:486.07:15-0.77:031.86:177:56Full Moon27Fri
28Sat1:067.42:445.97:58-1.07:432.26:167:57Full Moon28Sat
29Sun1:437.53:455.88:46-1.28:282.66:157:58Waning Gibbous29Sun
30Mon2:247.44:505.79:38-1.29:223.06:137:59Waning 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 12:48 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