Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide (tomorrow) : in 2h 05m at 11:16 pm (2.4 ft)
Next high tide : 4:31 am (5.6 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 - Dec 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:026.64:086.410:442.510:560.07:064:51Third Quarter1Mon
2Tue6:026.75:265.912:082.27:074:51Third Quarter2Tue
3Wed6:506.96:505.61:201.67:084:50Third Quarter3Wed
4Thu7:447.28:085.612:560.92:201.07:094:50Waning Crescent4Thu
5Fri8:267.49:205.71:561.33:140.57:104:50Waning Crescent5Fri
6Sat9:087.510:205.82:501.74:020.07:104:50Waning Crescent6Sat
7Sun9:447.611:146.03:382.04:44-0.37:114:50Waning Crescent7Sun
8Mon10:207.64:202.35:26-0.57:124:50New Moon8Mon
9Tue12:026.010:56 AM7.55:022.56:02-0.67:134:50New Moon9Tue
10Wed12:506.111:32 AM7.35:442.76:32-0.67:144:51New Moon10Wed
11Thu1:326.112:027.26:262.97:08-0.57:144:51New Moon11Thu
12Fri2:086.112:387.07:083.07:44-0.47:154:51Waxing Crescent12Fri
13Sat2:506.01:146.77:503.08:20-0.27:164:51Waxing Crescent13Sat
14Sun3:266.01:566.48:383.18:560.07:174:51Waxing Crescent14Sun
15Mon4:086.02:386.09:323.09:380.37:174:52Waxing Crescent15Mon
16Tue4:446.13:325.610:382.910:200.77:184:52First Quarter16Tue
17Wed5:266.24:385.311:442.611:141.07:194:52First Quarter17Wed
18Thu6:146.46:025.012:502.27:194:53First Quarter18Thu
19Fri6:566.77:265.012:081.41:501.67:204:53First Quarter19Fri
20Sat7:387.08:445.21:021.72:381.07:204:54Waxing Gibbous20Sat
21Sun8:207.39:445.51:562.03:200.37:214:54Waxing Gibbous21Sun
22Mon9:027.610:445.82:502.24:02-0.37:214:55Waxing Gibbous22Mon
23Tue9:447.911:386.13:382.34:50-0.97:224:55Full Moon23Tue
24Wed10:268.14:262.45:32-1.37:224:56Full Moon24Wed
25Thu12:266.311:14 AM8.25:202.46:20-1.57:224:57Full Moon25Thu
26Fri1:146.512:028.26:082.47:02-1.57:234:57Full Moon26Fri
27Sat1:566.612:567.97:022.47:50-1.37:234:58Waning Gibbous27Sat
28Sun2:446.71:507.58:022.38:38-0.97:234:59Waning Gibbous28Sun
29Mon3:386.82:506.99:082.29:32-0.47:244:59Waning Gibbous29Mon
30Tue4:266.93:566.210:202.010:260.37:245:00Third Quarter30Tue
31Wed5:207.05:085.711:381.711:260.87:245:01Third Quarter31Wed
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 1:53 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 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