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 6h 16m 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 - Mar 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:226.48:155.21:040.86:406:03First Quarter1Sat
2Sun6:256.39:115.412:543.02:070.76:396:04First Quarter2Sun
3Mon7:286.49:515.62:022.92:580.56:376:05Waxing Gibbous3Mon
4Tue8:246.510:235.82:562.73:400.36:366:06Waxing Gibbous4Tue
5Wed9:146.610:515.93:412.44:150.26:346:07Waxing Gibbous5Wed
6Thu9:596.711:176.14:202.04:470.16:336:08Waxing Gibbous6Thu
7Fri10:426.711:436.34:561.75:170.26:326:09Full Moon7Fri
8Sat11:256.75:311.35:460.36:306:09Full Moon8Sat
9Sun12:106.51:086.67:071.07:170.57:297:10Full Moon9Sun
10Mon1:386.81:536.47:450.77:490.87:277:11Full Moon10Mon
11Tue2:086.92:416.18:260.48:241.27:267:12Waning Gibbous11Tue
12Wed2:427.13:355.89:120.29:031.77:247:13Waning Gibbous12Wed
13Thu3:197.14:385.510:040.19:482.17:237:14Waning Gibbous13Thu
14Fri4:047.15:545.211:040.110:442.57:217:15Third Quarter14Fri
15Sat4:597.07:205.212:130.07:207:16Third Quarter15Sat
16Sun6:066.88:385.412:002.81:280.07:187:17Third Quarter16Sun
17Mon7:216.89:395.71:302.82:38-0.27:177:18Third Quarter17Mon
18Tue8:356.810:266.12:512.53:38-0.37:157:19Waning Crescent18Tue
19Wed9:426.911:076.43:552.04:29-0.37:147:20Waning Crescent19Wed
20Thu10:426.911:456.74:501.45:14-0.27:127:21Waning Crescent20Thu
21Fri11:386.95:400.95:560.07:117:22New Moon21Fri
22Sat12:206.912:306.76:260.56:350.37:097:23New Moon22Sat
23Sun12:547.11:206.57:100.27:130.77:087:24New Moon23Sun
24Mon1:277.12:106.37:520.07:521.27:067:24New Moon24Mon
25Tue1:597.13:006.08:350.08:301.67:057:25Waxing Crescent25Tue
26Wed2:327.03:525.79:170.09:112.17:037:26Waxing Crescent26Wed
27Thu3:076.84:505.410:030.29:562.57:027:27Waxing Crescent27Thu
28Fri3:456.55:565.210:540.410:522.87:007:28Waxing Crescent28Fri
29Sat4:316.37:135.111:530.56:587:29First Quarter29Sat
30Sun5:276.08:245.212:063.01:000.76:577:30First Quarter30Sun
31Mon6:345.89:175.41:282.92:040.76:557:31First Quarter31Mon
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