Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 11:20 am (-0.2 ft)
Next high tide : in 39m at 4:28 am (6.3 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:48 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Nov 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:257.05:211.86:100.27:356:10New Moon1Mon
2Tue12:325.911:55 AM7.25:542.16:42-0.17:366:09New Moon2Tue
3Wed1:166.012:267.36:272.37:16-0.37:376:08New Moon3Wed
4Thu2:006.012:597.37:032.57:53-0.57:386:07New Moon4Thu
5Fri2:466.01:367.37:422.78:34-0.57:396:06Waxing Crescent5Fri
6Sat3:345.92:177.18:252.99:19-0.57:406:05Waxing Crescent6Sat
7Sun3:265.92:046.98:163.09:08-0.46:415:04Waxing Crescent7Sun
8Mon4:225.93:016.69:203.010:04-0.26:435:03First Quarter8Mon
9Tue5:186.14:086.310:392.911:040.16:445:02First Quarter9Tue
10Wed6:146.35:276.012:032.56:455:01First Quarter10Wed
11Thu7:046.66:505.912:070.41:171.96:465:01First Quarter11Thu
12Fri7:507.08:085.91:070.72:191.26:475:00Waxing Gibbous12Fri
13Sat8:347.39:186.02:030.93:120.46:484:59Waxing Gibbous13Sat
14Sun9:157.610:216.22:551.34:01-0.26:494:58Waxing Gibbous14Sun
15Mon9:567.911:196.33:441.64:48-0.76:504:58Full Moon15Mon
16Tue10:368.04:311.95:33-0.96:514:57Full Moon16Tue
17Wed12:136.411:17 AM7.95:192.26:16-1.16:524:56Full Moon17Wed
18Thu1:056.411:58 AM7.86:062.47:00-1.06:534:56Full Moon18Thu
19Fri1:566.312:397.56:552.67:43-0.86:544:55Waning Gibbous19Fri
20Sat2:456.31:227.17:472.88:27-0.56:554:55Waning Gibbous20Sat
21Sun3:356.22:076.78:442.99:13-0.16:564:54Waning Gibbous21Sun
22Mon4:266.12:576.29:493.010:010.36:574:54Waning Gibbous22Mon
23Tue5:166.13:545.711:012.810:520.76:584:53Third Quarter23Tue
24Wed6:046.25:035.412:132.66:594:53Third Quarter24Wed
25Thu6:486.36:215.11:172.27:004:52Third Quarter25Thu
26Fri7:276.57:395.112:411.42:111.77:014:52Third Quarter26Fri
27Sat8:026.78:485.21:311.72:561.27:024:52Waning Crescent27Sat
28Sun8:366.99:475.42:181.93:360.77:034:51Waning Crescent28Sun
29Mon9:097.110:385.63:002.24:120.27:044:51Waning Crescent29Mon
30Tue9:437.311:255.73:412.44:47-0.27:054:51Waning Crescent30Tue
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 7:54 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 38% 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 First Quarter (38% 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