Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 5h 44m at 1:29 pm (1.2 ft)
Next high tide : 8:12 pm (6.8 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Aug 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:044.86:296.71:031.511:59 AM2.76:138:17First Quarter1Fri
2Sat9:024.87:166.82:081.21:013.26:148:16First Quarter2Sat
3Sun10:305.18:076.93:080.92:153.56:158:15Waxing Gibbous3Sun
4Mon11:225.49:007.14:000.53:213.66:168:14Waxing Gibbous4Mon
5Tue12:005.64:450.24:143.56:178:13Waxing Gibbous5Tue
6Wed12:325.85:26-0.24:583.46:188:12Waxing Gibbous6Wed
7Thu1:015.96:02-0.45:383.26:188:11Full Moon7Thu
8Fri1:306.06:37-0.66:182.96:198:10Full Moon8Fri
9Sat12:047.61:586.27:11-0.77:002.66:208:09Full Moon9Sat
10Sun12:487.62:276.47:45-0.67:442.26:218:08Full Moon10Sun
11Mon1:357.32:576.78:19-0.38:331.96:228:06Waning Gibbous11Mon
12Tue2:246.93:286.98:540.19:261.56:238:05Waning Gibbous12Tue
13Wed3:206.44:027.29:310.810:251.26:248:04Waning Gibbous13Wed
14Thu4:265.84:417.410:111.511:320.96:248:03Third Quarter14Thu
15Fri5:495.45:277.510:582.36:258:02Third Quarter15Fri
16Sat7:315.26:227.612:470.611:58 AM2.96:268:00Third Quarter16Sat
17Sun9:125.37:267.62:030.21:163.36:277:59Third Quarter17Sun
18Mon10:255.78:327.73:14-0.12:393.46:287:58Waning Crescent18Mon
19Tue11:186.09:357.84:14-0.43:493.36:297:56Waning Crescent19Tue
20Wed12:006.25:06-0.64:483.06:307:55Waning Crescent20Wed
21Thu12:386.45:51-0.75:392.66:307:54New Moon21Thu
22Fri1:136.56:31-0.66:262.36:317:52New Moon22Fri
23Sat12:127.51:456.57:07-0.47:112.06:327:51New Moon23Sat
24Sun12:577.22:146.67:400.07:541.86:337:50New Moon24Sun
25Mon1:426.82:416.78:110.48:361.66:347:48Waxing Crescent25Mon
26Tue2:266.43:076.78:421.09:201.56:357:47Waxing Crescent26Tue
27Wed3:145.93:336.79:121.610:061.46:367:45Waxing Crescent27Wed
28Thu4:085.54:026.79:442.210:581.36:367:44Waxing Crescent28Thu
29Fri5:165.24:376.710:192.811:581.36:377:42First Quarter29Fri
30Sat6:525.05:226.611:063.36:387:41First Quarter30Sat
31Sun8:535.16:196.61:081.212:253.66:397:39First Quarter31Sun
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 4:50 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 35% 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 Third Quarter (35% 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