Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 11:16 pm (2.4 ft)
Next high tide : in 1h 06m at 5:22 pm (6.4 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - May 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:276.71:445.67:15-0.16:552.16:137:59New Moon1Thu
2Fri12:506.82:305.57:46-0.37:262.46:128:00New Moon2Fri
3Sat1:156.83:165.48:19-0.47:592.86:118:01Waxing Crescent3Sat
4Sun1:436.84:065.48:54-0.48:343.06:108:02Waxing Crescent4Sun
5Mon2:166.75:025.39:35-0.49:163.36:098:03Waxing Crescent5Mon
6Tue2:556.56:045.310:21-0.310:123.46:088:03Waxing Crescent6Tue
7Wed3:426.37:075.411:15-0.211:313.56:078:04First Quarter7Wed
8Thu4:416.18:005.512:16-0.26:068:05First Quarter8Thu
9Fri5:525.98:435.812:593.21:17-0.16:058:06First Quarter9Fri
10Sat7:115.79:186.12:122.72:14-0.16:048:07First Quarter10Sat
11Sun8:305.79:526.53:102.03:050.16:038:08Waxing Gibbous11Sun
12Mon9:435.810:246.94:011.23:520.46:028:09Waxing Gibbous12Mon
13Tue10:515.910:587.34:480.44:370.86:018:10Waxing Gibbous13Tue
14Wed11:556.011:337.65:36-0.45:211.36:008:11Full Moon14Wed
15Thu12:576.16:23-1.16:061.85:598:11Full Moon15Thu
16Fri12:117.91:576.17:11-1.66:532.25:588:12Full Moon16Fri
17Sat12:528.02:586.18:00-1.87:432.65:588:13Waning Gibbous17Sat
18Sun1:377.93:586.08:51-1.78:382.95:578:14Waning Gibbous18Sun
19Mon2:257.65:016.09:45-1.59:433.15:568:15Waning Gibbous19Mon
20Tue3:187.16:046.010:41-1.111:003.25:558:16Waning Gibbous20Tue
21Wed4:176.67:056.011:41-0.75:558:17Third Quarter21Wed
22Thu5:246.17:596.112:273.012:42-0.35:548:17Third Quarter22Thu
23Fri6:405.68:456.31:462.61:400.15:538:18Third Quarter23Fri
24Sat7:595.39:246.52:532.12:320.55:538:19Third Quarter24Sat
25Sun9:145.29:566.63:481.53:190.95:528:20Waning Crescent25Sun
26Mon10:215.210:246.74:341.04:001.35:528:20Waning Crescent26Mon
27Tue11:205.210:496.95:140.54:381.85:518:21Waning Crescent27Tue
28Wed12:145.35:500.15:142.25:518:22Waning Crescent28Wed
29Thu1:035.46:23-0.25:492.55:508:23New Moon29Thu
30Fri1:495.56:55-0.46:242.85:508:23New Moon30Fri
31Sat12:107.12:335.67:27-0.66:593.15:498:24New Moon31Sat
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 8:19 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 71% 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 Gibbous (71% 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