Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 7:52 pm (3.2 ft)
Next high tide : in 31m at 3:19 pm (5.8 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 - Sep 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:367.61:317.17:05-0.27:260.86:407:38New Moon1Sat
2Sun1:317.32:067.47:440.38:180.46:417:37Waxing Crescent2Sun
3Mon2:296.92:437.68:240.99:130.26:417:35Waxing Crescent3Mon
4Tue3:316.43:247.79:061.610:120.16:427:34Waxing Crescent4Tue
5Wed4:425.94:107.69:542.311:190.16:437:32First Quarter5Wed
6Thu6:055.65:047.510:522.96:447:31First Quarter6Thu
7Fri7:385.56:087.212:330.212:113.36:457:29First Quarter7Fri
8Sat9:015.77:197.11:490.21:413.36:467:28First Quarter8Sat
9Sun10:016.08:297.02:580.22:573.16:467:26Waxing Gibbous9Sun
10Mon10:476.29:307.03:550.13:572.86:477:25Waxing Gibbous10Mon
11Tue11:246.310:247.04:410.14:462.46:487:23Waxing Gibbous11Tue
12Wed11:566.411:116.95:200.25:282.16:497:21Waxing Gibbous12Wed
13Thu12:236.45:530.36:061.86:507:20Full Moon13Thu
14Fri12:466.56:220.66:411.56:517:18Full Moon14Fri
15Sat12:356.61:076.66:500.97:151.36:517:17Full Moon15Sat
16Sun1:156.31:296.77:171.37:481.06:527:15Full Moon16Sun
17Mon1:576.11:516.87:441.78:220.96:537:14Waning Gibbous17Mon
18Tue2:405.92:166.98:122.18:580.86:547:12Waning Gibbous18Tue
19Wed3:295.62:456.98:422.59:400.86:557:11Waning Gibbous19Wed
20Thu4:265.43:216.89:152.910:300.86:567:09Waning Gibbous20Thu
21Fri5:395.24:056.79:573.311:310.76:567:07Third Quarter21Fri
22Sat7:095.25:026.611:003.66:577:06Third Quarter22Sat
23Sun8:315.36:126.612:420.612:343.66:587:04Third Quarter23Sun
24Mon9:235.67:266.71:530.42:003.46:597:03Third Quarter24Mon
25Tue10:015.98:366.92:540.23:042.97:007:01Waning Crescent25Tue
26Wed10:346.29:407.03:440.03:582.37:017:00Waning Crescent26Wed
27Thu11:056.510:407.14:28-0.14:471.67:026:58Waning Crescent27Thu
28Fri11:366.911:387.15:100.15:350.87:026:57New Moon28Fri
29Sat12:097.35:500.46:230.27:036:55New Moon29Sat
30Sun12:367.012:437.76:300.87:11-0.47:046:54New Moon30Sun
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 5:35 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