Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 1h 01m at 3:45 pm (3.2 ft)
Next high tide : 9:49 pm (8.2 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jul 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:475.76:34-0.56:013.45:528:35Full Moon1Fri
2Sat2:225.87:08-0.66:403.45:528:35Full Moon2Sat
3Sun12:177.32:555.87:42-0.77:183.45:538:34Full Moon3Sun
4Mon12:557.33:285.88:16-0.87:583.35:538:34Full Moon4Mon
5Tue1:347.14:005.98:51-0.88:423.25:548:34Waning Gibbous5Tue
6Wed2:156.94:326.09:26-0.69:323.05:548:34Waning Gibbous6Wed
7Thu2:596.65:066.210:03-0.310:312.75:558:34Waning Gibbous7Thu
8Fri3:516.15:406.510:420.111:382.35:568:33Third Quarter8Fri
9Sat4:565.66:176.811:250.75:568:33Third Quarter9Sat
10Sun6:195.16:577.112:491.812:121.45:578:33Third Quarter10Sun
11Mon8:004.97:417.51:581.11:062.15:588:32Third Quarter11Mon
12Tue9:395.18:287.83:020.32:072.65:588:32Waning Crescent12Tue
13Wed10:585.49:208.14:00-0.33:103.05:598:31Waning Crescent13Wed
14Thu12:015.74:54-0.94:133.26:008:31Waning Crescent14Thu
15Fri12:526.05:46-1.35:123.26:008:30New Moon15Fri
16Sat1:396.26:35-1.56:093.16:018:30New Moon16Sat
17Sun12:008.32:226.37:22-1.57:052.96:028:29New Moon17Sun
18Mon12:538.13:036.48:08-1.38:012.76:028:28Waxing Crescent18Mon
19Tue1:437.73:436.58:51-1.08:582.56:038:28Waxing Crescent19Tue
20Wed2:347.24:226.69:32-0.59:582.36:048:27Waxing Crescent20Wed
21Thu3:276.65:006.710:120.111:012.16:058:26Waxing Crescent21Thu
22Fri4:245.95:386.710:520.86:068:26First Quarter22Fri
23Sat5:345.36:166.812:091.911:35 AM1.56:068:25First Quarter23Sat
24Sun7:034.96:576.81:171.512:242.26:078:24First Quarter24Sun
25Mon8:514.97:396.92:221.21:222.86:088:23First Quarter25Mon
26Tue10:225.18:257.03:200.82:273.26:098:23Waxing Gibbous26Tue
27Wed11:235.49:117.14:110.43:293.46:108:22Waxing Gibbous27Wed
28Thu12:085.64:550.14:223.56:108:21Waxing Gibbous28Thu
29Fri12:445.85:35-0.15:073.46:118:20Waxing Gibbous29Fri
30Sat1:165.96:12-0.35:463.36:128:19Full Moon30Sat
31Sun1:455.96:46-0.56:233.26:138:18Full Moon31Sun
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 6:47 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 spring phase. Tonight's moon is 10% 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 maximum.

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 Waning Crescent (10% illuminated). This places South San Francisco, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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