Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 1h 26m at 7:52 pm (3.2 ft)
Next high tide (tomorrow) : 1:26 am (7.1 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Feb 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:457.01:197.37:271.37:48-0.47:125:33Waning Gibbous1Mon
2Tue2:237.22:176.68:241.18:290.37:125:34Waning Gibbous2Tue
3Wed3:027.33:206.09:250.99:121.17:115:35Waning Gibbous3Wed
4Thu3:457.34:365.410:330.810:011.87:105:36Third Quarter4Thu
5Fri4:327.36:115.011:460.611:022.57:095:37Third Quarter5Fri
6Sat5:267.27:545.11:010.57:085:38Third Quarter6Sat
7Sun6:267.19:135.412:193.02:100.37:075:40Third Quarter7Sun
8Mon7:277.010:085.71:393.23:080.07:065:41Waning Crescent8Mon
9Tue8:247.010:505.92:463.13:56-0.17:055:42Waning Crescent9Tue
10Wed9:157.111:256.03:402.94:36-0.27:045:43Waning Crescent10Wed
11Thu9:597.111:546.04:242.75:10-0.37:035:44Waning Crescent11Thu
12Fri10:407.05:032.55:40-0.27:025:45New Moon12Fri
13Sat12:206.111:18 AM6.95:392.36:08-0.17:005:46New Moon13Sat
14Sun12:436.211:55 AM6.76:132.06:340.16:595:47New Moon14Sun
15Mon1:056.312:326.56:471.87:000.46:585:48New Moon15Mon
16Tue1:286.41:116.27:221.67:260.76:575:49Waxing Crescent16Tue
17Wed1:526.61:535.87:591.47:541.26:565:50Waxing Crescent17Wed
18Thu2:196.72:425.58:421.28:251.66:545:51Waxing Crescent18Thu
19Fri2:506.83:435.19:311.19:002.26:535:52Waxing Crescent19Fri
20Sat3:276.85:084.810:300.99:442.76:525:54First Quarter20Sat
21Sun4:146.86:564.811:410.710:493.16:515:55First Quarter21Sun
22Mon5:136.98:265.012:570.36:495:56First Quarter22Mon
23Tue6:227.09:235.412:183.32:04-0.16:485:57Waxing Gibbous23Tue
24Wed7:327.210:045.71:423.13:02-0.56:475:58Waxing Gibbous24Wed
25Thu8:377.510:416.12:492.83:51-0.86:455:59Waxing Gibbous25Thu
26Fri9:377.611:166.43:462.24:36-0.96:446:00Waxing Gibbous26Fri
27Sat10:337.711:516.84:391.65:18-0.96:436:01Full Moon27Sat
28Sun11:287.55:301.15:58-0.66:416:02Full Moon28Sun
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 10:39 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 97% 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 Full Moon (97% 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