Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 2h 59m at 10:32 am (-0.8 ft)
Next high tide : 5:33 pm (6.5 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 - Jul 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:055.29:047.83:380.12:432.45:528:35Waning Crescent1Mon
2Tue11:205.59:507.94:33-0.53:422.85:528:35Waning Crescent2Tue
3Wed12:215.75:22-0.94:393.15:538:34Waning Crescent3Wed
4Thu1:126.06:08-1.15:343.25:538:34New Moon4Thu
5Fri1:596.16:52-1.16:263.25:548:34New Moon5Fri
6Sat12:087.82:416.17:34-1.17:153.25:548:34New Moon6Sat
7Sun12:517.63:206.18:13-0.98:033.15:558:33New Moon7Sun
8Mon1:347.33:576.18:51-0.78:523.05:558:33Waxing Crescent8Mon
9Tue2:156.94:316.19:27-0.49:432.95:568:33Waxing Crescent9Tue
10Wed2:586.45:036.110:020.010:382.75:578:32Waxing Crescent10Wed
11Thu3:445.95:356.210:370.511:402.55:578:32Waxing Crescent11Thu
12Fri4:385.46:076.411:131.15:588:32First Quarter12Fri
13Sat5:474.96:416.512:462.211:52 AM1.75:598:31First Quarter13Sat
14Sun7:204.67:186.71:501.712:372.35:598:31First Quarter14Sun
15Mon9:084.77:596.92:471.21:312.86:008:30First Quarter15Mon
16Tue10:365.08:427.13:380.72:313.26:018:30Waxing Gibbous16Tue
17Wed11:365.39:287.44:240.23:293.46:028:29Waxing Gibbous17Wed
18Thu12:215.65:07-0.24:223.56:028:28Waxing Gibbous18Thu
19Fri1:005.85:48-0.75:113.46:038:28Full Moon19Fri
20Sat1:375.96:29-1.05:583.36:048:27Full Moon20Sat
21Sun2:136.17:10-1.26:463.16:058:26Full Moon21Sun
22Mon12:378.02:486.27:51-1.37:372.86:058:26Full Moon22Mon
23Tue1:267.83:236.48:32-1.28:312.56:068:25Waning Gibbous23Tue
24Wed2:187.43:596.79:12-0.89:312.16:078:24Waning Gibbous24Wed
25Thu3:146.94:376.99:53-0.210:361.86:088:23Waning Gibbous25Thu
26Fri4:186.25:177.210:360.511:481.46:098:23Third Quarter26Fri
27Sat5:355.66:017.411:231.36:098:22Third Quarter27Sat
28Sun7:095.26:507.61:040.912:172.16:108:21Third Quarter28Sun
29Mon8:525.27:437.72:170.51:222.86:118:20Third Quarter29Mon
30Tue10:195.48:397.73:240.02:333.26:128:19Waning Crescent30Tue
31Wed11:235.89:347.84:22-0.33:423.36:138:18Waning Crescent31Wed
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 2:02 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 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