Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 1:29 pm (1.2 ft)
Next high tide : in 2h 13m at 7:31 am (5.0 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 - Feb 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:517.010:435.72:093.43:360.07:135:33Waning Crescent1Mon
2Tue8:427.011:205.83:093.34:19-0.17:125:34Waning Crescent2Tue
3Wed9:297.111:515.93:583.24:56-0.37:115:35Waning Crescent3Wed
4Thu10:117.24:393.05:28-0.47:105:36New Moon4Thu
5Fri12:185.910:50 AM7.25:152.85:57-0.47:095:37New Moon5Fri
6Sat12:426.011:27 AM7.15:502.56:25-0.37:085:38New Moon6Sat
7Sun1:056.112:046.96:242.36:51-0.27:075:39New Moon7Sun
8Mon1:296.212:426.67:002.17:180.17:065:40Waxing Crescent8Mon
9Tue1:536.41:236.37:381.87:460.57:055:42Waxing Crescent9Tue
10Wed2:186.62:095.98:201.68:161.07:045:43Waxing Crescent10Wed
11Thu2:466.73:055.49:091.38:491.67:035:44Waxing Crescent11Thu
12Fri3:196.94:195.010:061.19:282.27:025:45First Quarter12Fri
13Sat4:007.06:034.811:150.810:192.87:015:46First Quarter13Sat
14Sun4:517.17:564.912:310.46:595:47First Quarter14Sun
15Mon5:557.29:145.31:450.06:585:48First Quarter15Mon
16Tue7:057.410:045.61:063.42:49-0.56:575:49Waxing Gibbous16Tue
17Wed8:137.610:445.92:233.23:44-0.96:565:50Waxing Gibbous17Wed
18Thu9:157.811:216.23:272.84:32-1.16:555:51Waxing Gibbous18Thu
19Fri10:137.911:566.54:232.35:15-1.26:535:52Full Moon19Fri
20Sat11:077.85:151.85:56-1.06:525:53Full Moon20Sat
21Sun12:306.812:007.56:061.36:34-0.66:515:54Full Moon21Sun
22Mon1:047.012:527.06:560.97:120.06:505:55Waning Gibbous22Mon
23Tue1:387.11:466.57:470.77:490.66:485:56Waning Gibbous23Tue
24Wed2:127.22:445.98:390.58:271.46:475:58Waning Gibbous24Wed
25Thu2:477.13:505.49:340.59:082.16:465:59Waning Gibbous25Thu
26Fri3:267.05:135.010:350.69:582.76:446:00Third Quarter26Fri
27Sat4:106.86:595.011:450.611:093.26:436:01Third Quarter27Sat
28Sun5:056.68:325.212:580.66:416:02Third Quarter28Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414391)

Common Questions About South San Francisco, CA Tides

Show All
What time does the tide turn (slack tide) in South San Francisco, CA today?

Slack tide in South San Francisco, CA is approximately 10:30 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 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