Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 3:45 pm (3.2 ft)
Next high tide : in 4h 02m at 11:39 am (5.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jul 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:324.87:376.81:561.51:041.85:518:35Third Quarter1Fri
2Sat9:014.88:206.92:561.12:002.35:528:35Third Quarter2Sat
3Sun10:175.09:017.03:470.82:552.65:528:34Waning Crescent3Sun
4Mon11:155.29:427.24:320.43:472.85:538:34Waning Crescent4Mon
5Tue12:015.45:120.14:342.95:538:34Waning Crescent5Tue
6Wed12:415.65:48-0.25:162.95:548:34Waning Crescent6Wed
7Thu1:175.86:22-0.45:572.95:548:34New Moon7Thu
8Fri1:505.96:55-0.66:372.85:558:33New Moon8Fri
9Sat12:227.42:246.17:28-0.77:182.75:568:33New Moon9Sat
10Sun1:037.32:576.28:02-0.78:022.65:568:33Waxing Crescent10Sun
11Mon1:457.13:316.48:37-0.68:502.45:578:32Waxing Crescent11Mon
12Tue2:316.84:076.69:15-0.39:442.25:578:32Waxing Crescent12Tue
13Wed3:226.44:456.89:550.110:451.95:588:31Waxing Crescent13Wed
14Thu4:225.95:277.010:380.711:531.55:598:31First Quarter14Thu
15Fri5:365.46:147.211:281.36:008:31First Quarter15Fri
16Sat7:055.17:057.51:061.112:251.86:008:30First Quarter16Sat
17Sun8:395.18:007.72:160.61:312.36:018:29Waxing Gibbous17Sun
18Mon10:015.48:567.93:200.02:392.66:028:29Waxing Gibbous18Mon
19Tue11:055.79:518.04:17-0.43:442.76:028:28Waxing Gibbous19Tue
20Wed11:586.010:448.15:08-0.84:442.66:038:28Waxing Gibbous20Wed
21Thu12:456.25:56-1.05:402.56:048:27Full Moon21Thu
22Fri1:286.46:40-1.06:322.46:058:26Full Moon22Fri
23Sat12:257.92:076.67:22-0.97:232.26:068:26Full Moon23Sat
24Sun1:127.62:456.68:02-0.68:142.16:068:25Waning Gibbous24Sun
25Mon1:597.13:226.78:40-0.39:042.06:078:24Waning Gibbous25Mon
26Tue2:466.73:576.79:180.29:571.96:088:23Waning Gibbous26Tue
27Wed3:356.14:336.79:560.810:531.96:098:22Waning Gibbous27Wed
28Thu4:295.65:106.710:361.411:551.76:108:21Third Quarter28Thu
29Fri5:365.25:506.711:201.96:108:21Third Quarter29Fri
30Sat7:004.96:366.81:011.612:142.46:118:20Third Quarter30Sat
31Sun8:354.97:266.82:071.31:172.86:128:19Third 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 1:42 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 spring phase. Tonight's moon is 10% 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 Waning Crescent (10% 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