Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 7:39 pm (2.6 ft)
Next high tide : in 6h 21m at 2:43 pm (6.4 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:00 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jun 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:405.18:356.72:231.61:491.05:498:25First Quarter1Fri
2Sat9:054.99:116.83:221.12:391.55:498:25Waxing Gibbous2Sat
3Sun10:215.09:437.04:120.63:252.05:488:26Waxing Gibbous3Sun
4Mon11:265.110:157.14:550.14:102.45:488:27Waxing Gibbous4Mon
5Tue12:205.35:34-0.24:522.85:488:27Waxing Gibbous5Tue
6Wed1:085.56:09-0.45:323.05:478:28Full Moon6Wed
7Thu1:505.66:43-0.66:113.25:478:29Full Moon7Thu
8Fri2:295.67:17-0.76:493.35:478:29Full Moon8Fri
9Sat12:287.13:055.67:51-0.87:273.35:478:30Full Moon9Sat
10Sun1:057.13:415.78:25-0.88:073.35:478:30Waning Gibbous10Sun
11Mon1:436.94:185.79:01-0.88:523.25:478:31Waning Gibbous11Mon
12Tue2:246.74:545.89:39-0.79:453.15:478:31Waning Gibbous12Tue
13Wed3:096.45:316.010:19-0.510:482.95:478:31Waning Gibbous13Wed
14Thu4:016.06:086.211:01-0.111:582.55:478:32Third Quarter14Thu
15Fri5:065.56:466.511:470.45:478:32Third Quarter15Fri
16Sat6:285.17:256.81:101.912:361.05:478:33Third Quarter16Sat
17Sun8:024.98:067.22:161.21:301.55:478:33Third Quarter17Sun
18Mon9:345.08:507.63:150.42:262.15:478:33Waning Crescent18Mon
19Tue10:535.39:368.04:10-0.43:242.55:478:34Waning Crescent19Tue
20Wed11:595.610:258.25:01-1.04:212.85:478:34Waning Crescent20Wed
21Thu12:555.95:52-1.55:182.95:488:34New Moon21Thu
22Fri1:466.16:41-1.76:153.05:488:34New Moon22Fri
23Sat12:088.32:346.27:30-1.87:122.95:488:34New Moon23Sat
24Sun1:008.13:196.38:17-1.68:102.85:488:35Waxing Crescent24Sun
25Mon1:527.74:036.49:04-1.39:112.65:498:35Waxing Crescent25Mon
26Tue2:447.24:476.59:48-0.910:162.55:498:35Waxing Crescent26Tue
27Wed3:396.55:296.610:32-0.311:252.25:498:35Waxing Crescent27Wed
28Thu4:395.86:116.711:170.45:508:35First Quarter28Thu
29Fri5:495.26:526.812:371.912:031.15:508:35First Quarter29Fri
30Sat7:164.87:326.91:461.512:521.85:518:35First 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 5:11 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 3% 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 New Moon (3% 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