Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 5:53 am (-0.4 ft)
Next high tide (tomorrow) : in 28m at 10:19 pm (7.3 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Feb 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:487.511:236.03:033.34:25-0.67:125:33Waxing Gibbous1Sat
2Sun9:397.54:003.25:07-0.77:115:34Waxing Gibbous2Sun
3Mon12:036.210:25 AM7.54:493.05:45-0.77:105:35Full Moon3Mon
4Tue12:386.211:08 AM7.35:332.86:19-0.67:095:36Full Moon4Tue
5Wed1:106.211:47 AM7.26:122.66:50-0.57:095:38Full Moon5Wed
6Thu1:386.212:246.96:512.47:19-0.27:085:39Full Moon6Thu
7Fri2:036.21:026.67:292.37:470.17:075:40Waning Gibbous7Fri
8Sat2:276.21:416.28:092.18:150.67:065:41Waning Gibbous8Sat
9Sun2:516.32:245.78:521.98:421.17:045:42Waning Gibbous9Sun
10Mon3:186.43:165.29:411.89:121.77:035:43Waning Gibbous10Mon
11Tue3:486.54:264.810:371.69:452.37:025:44Third Quarter11Tue
12Wed4:246.56:114.611:431.310:292.97:015:45Third Quarter12Wed
13Thu5:106.68:204.812:531.07:005:46Third Quarter13Thu
14Fri6:056.79:375.11:580.56:595:47Third Quarter14Fri
15Sat7:076.910:215.51:123.52:540.06:585:48Waning Crescent15Sat
16Sun8:077.210:565.72:243.53:43-0.56:575:50Waning Crescent16Sun
17Mon9:047.511:285.93:213.24:28-0.96:555:51Waning Crescent17Mon
18Tue9:587.84:112.95:10-1.26:545:52New Moon18Tue
19Wed12:006.110:49 AM7.94:582.45:51-1.36:535:53New Moon19Wed
20Thu12:326.411:41 AM7.85:471.96:30-1.16:525:54New Moon20Thu
21Fri1:056.612:337.56:371.47:09-0.76:505:55New Moon21Fri
22Sat1:386.91:287.07:291.07:47-0.16:495:56Waxing Crescent22Sat
23Sun2:137.12:286.48:250.68:270.76:485:57Waxing Crescent23Sun
24Mon2:517.33:365.89:250.49:111.56:465:58Waxing Crescent24Mon
25Tue3:337.35:015.310:320.310:022.36:455:59First Quarter25Tue
26Wed4:217.26:445.111:480.211:102.96:446:00First Quarter26Wed
27Thu5:187.18:225.41:060.16:426:01First Quarter27Thu
28Fri6:256.99:295.712:393.32:17-0.16:416:02First Quarter28Fri
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 2:06 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 91% 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 (91% 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