Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 5h 14m at 5:14 am (-0.2 ft)
Next high tide : 12:13 pm (5.4 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Sep 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:055.99:166.94:010.43:533.26:407:37Waning Crescent1Sat
2Sun11:426.010:067.04:460.34:403.06:417:36Waning Crescent2Sun
3Mon12:136.15:250.15:192.86:427:34Waning Crescent3Mon
4Tue12:406.25:580.15:552.56:437:33New Moon4Tue
5Wed1:056.26:290.16:292.36:437:31New Moon5Wed
6Thu12:107.01:296.36:570.27:022.06:447:30New Moon6Thu
7Fri12:496.91:546.57:250.37:371.76:457:28New Moon7Fri
8Sat1:306.72:196.67:530.68:151.46:467:27Waxing Crescent8Sat
9Sun2:136.42:466.88:221.08:561.26:477:25Waxing Crescent9Sun
10Mon3:026.13:166.98:551.59:431.06:487:24Waxing Crescent10Mon
11Tue3:595.83:507.09:312.110:380.86:487:22Waxing Crescent11Tue
12Wed5:125.44:337.010:142.711:430.66:497:21First Quarter12Wed
13Thu6:445.35:277.011:123.16:507:19First Quarter13Thu
14Fri8:235.46:357.112:570.412:343.46:517:18First Quarter14Fri
15Sat9:365.77:487.22:110.12:033.46:527:16Waxing Gibbous15Sat
16Sun10:276.08:587.43:17-0.23:163.16:537:15Waxing Gibbous16Sun
17Mon11:096.310:027.64:13-0.54:162.66:537:13Waxing Gibbous17Mon
18Tue11:466.511:007.65:03-0.65:092.16:547:11Waxing Gibbous18Tue
19Wed12:226.85:47-0.55:591.56:557:10Full Moon19Wed
20Thu12:567.06:28-0.36:471.06:567:08Full Moon20Thu
21Fri12:497.31:297.17:080.27:340.76:577:07Full Moon21Fri
22Sat1:427.02:027.27:460.78:220.56:587:05Waning Gibbous22Sat
23Sun2:376.62:367.28:251.39:100.46:597:04Waning Gibbous23Sun
24Mon3:356.13:107.19:062.010:010.46:597:02Waning Gibbous24Mon
25Tue4:405.83:476.99:512.610:570.57:007:01Waning Gibbous25Tue
26Wed5:585.64:316.710:483.17:016:59Third Quarter26Wed
27Thu7:285.55:256.412:000.612:063.57:026:57Third Quarter27Thu
28Fri8:495.76:316.31:110.71:333.57:036:56Third Quarter28Fri
29Sat9:455.97:416.22:190.72:443.37:046:54Third Quarter29Sat
30Sun10:256.08:456.33:160.63:383.07:056:53Waning Crescent30Sun
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 8:43 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 spring phase. Tonight's moon is 85% 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 Waxing Gibbous (85% 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