Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide (tomorrow) : in 1h 31m at 11:11 pm (2.4 ft)
Next high tide : 4:28 am (6.3 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jun 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:565.57:596.91:291.71:090.55:498:25Third Quarter1Tue
2Wed8:215.38:467.22:391.12:081.05:488:26Waning Crescent2Wed
3Thu9:415.49:317.53:390.43:041.45:488:27Waning Crescent3Thu
4Fri10:515.510:147.64:32-0.13:581.85:488:27Waning Crescent4Fri
5Sat11:515.710:567.75:20-0.54:492.15:488:28Waning Crescent5Sat
6Sun12:455.96:04-0.85:382.35:478:28New Moon6Sun
7Mon1:356.06:45-0.96:252.55:478:29New Moon7Mon
8Tue12:157.52:206.07:24-0.97:112.75:478:30New Moon8Tue
9Wed12:547.33:036.08:02-0.97:572.75:478:30New Moon9Wed
10Thu1:327.03:446.08:39-0.78:442.85:478:31Waxing Crescent10Thu
11Fri2:116.74:236.09:16-0.59:342.85:478:31Waxing Crescent11Fri
12Sat2:526.45:016.09:54-0.210:292.75:478:31Waxing Crescent12Sat
13Sun3:366.05:406.010:330.211:322.65:478:32Waxing Crescent13Sun
14Mon4:275.56:196.111:150.65:478:32First Quarter14Mon
15Tue5:295.16:596.312:392.412:011.05:478:33First Quarter15Tue
16Wed6:454.87:396.51:432.012:501.45:478:33First Quarter16Wed
17Thu8:104.78:206.72:401.51:421.85:478:33First Quarter17Thu
18Fri9:304.89:007.03:291.02:352.15:478:34Waxing Gibbous18Fri
19Sat10:375.19:417.34:130.43:262.45:488:34Waxing Gibbous19Sat
20Sun11:345.410:227.54:54-0.14:152.55:488:34Waxing Gibbous20Sun
21Mon12:245.65:35-0.65:032.65:488:34Full Moon21Mon
22Tue1:105.96:16-1.05:522.65:488:34Full Moon22Tue
23Wed1:546.16:58-1.36:412.65:488:35Full Moon23Wed
24Thu12:387.92:386.37:42-1.47:342.55:498:35Full Moon24Thu
25Fri1:277.83:216.48:26-1.48:302.45:498:35Waning Gibbous25Fri
26Sat2:197.54:066.69:12-1.19:312.25:498:35Waning Gibbous26Sat
27Sun3:157.04:516.89:59-0.710:392.05:508:35Waning Gibbous27Sun
28Mon4:166.45:397.010:48-0.111:531.75:508:35Third Quarter28Mon
29Tue5:275.86:287.211:410.55:518:35Third Quarter29Tue
30Wed6:505.47:197.41:101.312:381.15:518:35Third Quarter30Wed
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 1:49 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 transitional phase. Tonight's moon is 28% 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 Waxing Crescent (28% 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