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 (tomorrow) : 12:27 am (2.1 ft)
Next high tide : in 6h 10m at 6:19 pm (6.6 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 - Jul 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:207.13:575.88:42-0.68:323.35:518:35Waxing Crescent1Fri
2Sat1:586.94:315.99:16-0.59:173.25:528:35Waxing Crescent2Sat
3Sun2:386.65:055.99:52-0.310:103.15:528:34Waxing Crescent3Sun
4Mon3:226.35:396.110:290.011:102.95:538:34Waxing Crescent4Mon
5Tue4:145.86:146.311:090.45:538:34First Quarter5Tue
6Wed5:195.46:516.612:182.511:52 AM0.95:548:34First Quarter6Wed
7Thu6:435.07:296.91:251.912:411.45:558:34First Quarter7Thu
8Fri8:214.98:107.32:271.21:342.05:558:33First Quarter8Fri
9Sat9:525.18:547.63:230.52:322.55:568:33Waxing Gibbous9Sat
10Sun11:085.49:418.04:16-0.33:302.95:568:33Waxing Gibbous10Sun
11Mon12:095.75:06-0.94:283.15:578:32Waxing Gibbous11Mon
12Tue1:026.05:56-1.45:253.15:588:32Full Moon12Tue
13Wed1:506.26:46-1.76:213.05:588:31Full Moon13Wed
14Thu12:168.42:366.37:35-1.77:182.95:598:31Full Moon14Thu
15Fri1:098.23:206.48:23-1.68:172.76:008:30Waning Gibbous15Fri
16Sat2:037.94:036.69:09-1.29:192.56:008:30Waning Gibbous16Sat
17Sun2:587.34:466.79:55-0.710:262.36:018:29Waning Gibbous17Sun
18Mon3:576.65:296.810:41-0.111:372.06:028:29Third Quarter18Mon
19Tue5:035.96:136.911:280.76:038:28Third Quarter19Tue
20Wed6:235.36:577.012:511.712:181.46:038:28Third Quarter20Wed
21Thu7:575.07:417.12:021.21:132.16:048:27Third Quarter21Thu
22Fri9:325.18:267.23:060.82:132.76:058:26Waning Crescent22Fri
23Sat10:485.49:097.24:010.43:133.06:068:25Waning Crescent23Sat
24Sun11:455.69:527.34:480.14:083.36:078:25Waning Crescent24Sun
25Mon12:315.85:29-0.14:573.36:078:24Waning Crescent25Mon
26Tue1:105.96:06-0.25:403.36:088:23New Moon26Tue
27Wed1:436.06:41-0.36:193.26:098:22New Moon27Wed
28Thu2:146.07:14-0.46:563.16:108:21New Moon28Thu
29Fri12:307.32:426.07:45-0.47:323.06:118:20New Moon29Fri
30Sat1:077.23:106.18:15-0.48:102.96:118:20Waxing Crescent30Sat
31Sun1:457.03:386.28:45-0.28:512.76:128:19Waxing Crescent31Sun
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 9:23 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 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