Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 8:32 am (-1.3 ft)
Next high tide : in 4h 11m at 1:26 am (8.0 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:00 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jul 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:065.66:00-0.45:243.35:528:35New Moon1Wed
2Thu1:415.76:35-0.56:043.35:528:35New Moon2Thu
3Fri2:145.87:08-0.76:443.25:538:34New Moon3Fri
4Sat12:237.42:455.97:41-0.87:243.15:538:34New Moon4Sat
5Sun1:027.33:176.08:14-0.88:072.95:548:34Waxing Crescent5Sun
6Mon1:447.13:486.28:48-0.78:542.75:548:34Waxing Crescent6Mon
7Tue2:286.84:216.49:23-0.49:482.55:558:34Waxing Crescent7Tue
8Wed3:176.44:556.610:000.010:492.15:568:33Waxing Crescent8Wed
9Thu4:165.85:326.910:400.611:571.75:568:33First Quarter9Thu
10Fri5:305.36:137.111:251.35:578:33First Quarter10Fri
11Sat7:035.07:007.41:081.112:181.95:588:32First Quarter11Sat
12Sun8:465.07:517.72:180.51:192.55:588:32Waxing Gibbous12Sun
13Mon10:145.28:467.93:22-0.12:282.95:598:31Waxing Gibbous13Mon
14Tue11:215.69:428.14:19-0.63:353.16:008:31Waxing Gibbous14Tue
15Wed12:145.95:12-1.04:383.16:008:30Waxing Gibbous15Wed
16Thu1:006.16:01-1.35:362.96:018:30Full Moon16Thu
17Fri1:426.36:47-1.36:312.76:028:29Full Moon17Fri
18Sat12:218.02:226.47:31-1.27:252.56:038:28Full Moon18Sat
19Sun1:117.73:006.58:11-0.98:182.36:038:28Waning Gibbous19Sun
20Mon1:597.33:366.68:50-0.59:122.26:048:27Waning Gibbous20Mon
21Tue2:486.74:116.79:280.010:082.06:058:26Waning Gibbous21Tue
22Wed3:406.14:456.710:050.611:071.96:068:26Waning Gibbous22Wed
23Thu4:395.55:216.810:441.36:068:25Third Quarter23Thu
24Fri5:515.05:596.812:121.711:26 AM2.06:078:24Third Quarter24Fri
25Sat7:274.86:426.81:191.412:182.66:088:23Third Quarter25Sat
26Sun9:134.97:306.92:241.11:223.16:098:23Third Quarter26Sun
27Mon10:315.28:207.03:220.82:313.36:108:22Waning Crescent27Mon
28Tue11:225.49:117.14:120.43:313.46:108:21Waning Crescent28Tue
29Wed12:015.64:560.14:223.36:118:20Waning Crescent29Wed
30Thu12:345.85:34-0.15:053.26:128:19Waning Crescent30Thu
31Fri1:035.96:08-0.45:453.06:138:18New Moon31Fri
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 4:59 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 3% 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 New Moon (3% 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