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 2h 54m 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 - Jun 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:425.27:566.51:321.91:040.85:498:25Third Quarter1Wed
2Thu8:035.08:376.62:371.51:581.25:498:26Third Quarter2Thu
3Fri9:225.09:156.83:321.02:491.75:488:26Waning Crescent3Fri
4Sat10:305.19:496.94:200.63:372.05:488:27Waning Crescent4Sat
5Sun11:275.210:227.05:010.24:212.35:488:27Waning Crescent5Sun
6Mon12:165.45:38-0.15:022.55:478:28Waning Crescent6Mon
7Tue1:005.56:12-0.35:412.75:478:29New Moon7Tue
8Wed1:405.66:45-0.56:202.85:478:29New Moon8Wed
9Thu12:047.22:185.77:17-0.66:582.95:478:30New Moon9Thu
10Fri12:407.22:555.87:50-0.77:372.95:478:30New Moon10Fri
11Sat1:187.13:325.98:25-0.88:202.95:478:31Waxing Crescent11Sat
12Sun1:586.94:105.99:02-0.79:082.85:478:31Waxing Crescent12Sun
13Mon2:416.74:496.19:41-0.610:042.75:478:31Waxing Crescent13Mon
14Tue3:306.35:306.210:23-0.311:082.55:478:32Waxing Crescent14Tue
15Wed4:285.96:136.511:100.15:478:32First Quarter15Wed
16Thu5:405.56:576.812:202.112:010.65:478:33First Quarter16Thu
17Fri7:055.27:437.11:311.512:561.15:478:33First Quarter17Fri
18Sat8:355.18:307.52:360.81:551.65:478:33Waxing Gibbous18Sat
19Sun9:575.39:187.83:350.12:552.05:478:34Waxing Gibbous19Sun
20Mon11:075.510:078.04:29-0.63:542.35:478:34Waxing Gibbous20Mon
21Tue12:075.85:19-1.14:502.45:488:34Waxing Gibbous21Tue
22Wed1:006.16:08-1.45:462.55:488:34Full Moon22Wed
23Thu1:496.26:55-1.56:412.55:488:34Full Moon23Thu
24Fri12:358.02:366.47:41-1.57:362.55:488:35Full Moon24Fri
25Sat1:247.73:216.58:26-1.38:332.45:498:35Waning Gibbous25Sat
26Sun2:147.34:046.59:10-0.99:312.45:498:35Waning Gibbous26Sun
27Mon3:046.84:476.59:53-0.410:342.35:498:35Waning Gibbous27Mon
28Tue3:576.25:306.610:370.111:412.15:508:35Waning Gibbous28Tue
29Wed4:565.66:126.611:220.75:508:35Third Quarter29Wed
30Thu6:075.16:556.712:501.912:111.35:518:35Third Quarter30Thu
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