Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 6h 13m at 3:36 am (-0.1 ft)
Next high tide : 10:33 am (5.2 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Mar 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:136.610:555.93:392.44:170.26:396:03Waxing Gibbous1Fri
2Sat9:576.711:236.14:192.14:500.16:386:04Waxing Gibbous2Sat
3Sun10:386.711:496.24:561.95:200.16:376:05Full Moon3Sun
4Mon11:186.75:301.65:490.26:356:06Full Moon4Mon
5Tue12:166.411:58 AM6.66:041.46:190.36:346:07Full Moon5Tue
6Wed12:436.512:396.56:391.16:490.66:326:08Full Moon6Wed
7Thu1:126.71:226.37:160.97:220.96:316:09Waning Gibbous7Thu
8Fri1:436.82:106.07:580.77:571.36:296:10Waning Gibbous8Fri
9Sat2:186.83:055.78:450.58:381.76:286:11Waning Gibbous9Sat
10Sun2:586.94:125.49:400.49:272.16:266:12Waning Gibbous10Sun
11Mon3:466.85:345.210:440.410:312.56:256:13Third Quarter11Mon
12Tue4:456.87:005.311:570.211:522.76:236:14Third Quarter12Tue
13Wed5:546.88:125.51:090.06:226:15Third Quarter13Wed
14Thu7:076.89:085.91:152.62:14-0.26:216:16Waning Crescent14Thu
15Fri8:157.09:536.22:262.23:10-0.46:196:17Waning Crescent15Fri
16Sat9:177.110:346.63:251.73:59-0.56:176:18Waning Crescent16Sat
17Sun10:157.211:136.84:181.24:44-0.46:166:18New Moon17Sun
18Mon11:087.111:507.05:070.85:26-0.26:146:19New Moon18Mon
19Tue12:006.95:540.46:070.26:136:20New Moon19Tue
20Wed12:267.112:516.76:400.26:470.66:116:21New Moon20Wed
21Thu1:027.11:426.37:250.17:281.16:106:22Waxing Crescent21Thu
22Fri1:387.12:356.08:110.18:111.66:086:23Waxing Crescent22Fri
23Sat2:156.93:335.68:590.28:572.16:076:24Waxing Crescent23Sat
24Sun2:546.64:385.49:520.49:522.56:056:25Waxing Crescent24Sun
25Mon3:396.45:545.210:510.611:022.86:046:26First Quarter25Mon
26Tue4:336.17:125.311:580.76:026:27First Quarter26Tue
27Wed5:375.98:135.412:222.81:040.76:016:28First Quarter27Wed
28Thu6:455.88:585.61:322.72:020.65:596:29First Quarter28Thu
29Fri7:495.99:345.82:292.42:500.65:586:29Waxing Gibbous29Fri
30Sat8:456.010:046.03:162.03:300.55:566:30Waxing Gibbous30Sat
31Sun9:356.110:316.23:561.64:060.55:556:31Waxing Gibbous31Sun
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 7:04 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 28% 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 Waning Crescent (28% 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