Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 4h 02m at 1:00 pm (1.2 ft)
Next high tide : 7:46 pm (7.0 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:48 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jun 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:245.55:53-0.15:252.15:498:25New Moon1Sat
2Sun1:145.76:29-0.66:052.45:498:26New Moon2Sun
3Mon12:027.42:035.87:07-0.96:462.65:488:26New Moon3Mon
4Tue12:407.52:535.97:48-1.27:322.85:488:27New Moon4Tue
5Wed1:227.53:446.08:32-1.38:222.95:488:27Waxing Crescent5Wed
6Thu2:077.44:356.09:20-1.39:193.05:488:28Waxing Crescent6Thu
7Fri2:587.25:286.110:11-1.110:273.05:478:29Waxing Crescent7Fri
8Sat3:566.86:216.211:06-0.811:462.75:478:29First Quarter8Sat
9Sun5:036.37:136.512:03-0.45:478:30First Quarter9Sun
10Mon6:215.88:016.81:072.31:010.05:478:30First Quarter10Mon
11Tue7:455.58:467.12:211.71:590.55:478:31First Quarter11Tue
12Wed9:095.49:297.43:241.02:531.05:478:31Waxing Gibbous12Wed
13Thu10:245.510:097.64:180.33:451.55:478:31Waxing Gibbous13Thu
14Fri11:315.610:497.75:08-0.34:351.95:478:32Waxing Gibbous14Fri
15Sat12:305.85:53-0.75:232.35:478:32Full Moon15Sat
16Sun1:245.96:35-0.96:102.65:478:33Full Moon16Sun
17Mon12:057.62:136.07:15-1.06:562.85:478:33Full Moon17Mon
18Tue12:437.53:006.07:55-1.07:433.05:478:33Full Moon18Tue
19Wed1:207.33:446.08:34-0.98:303.15:478:34Waning Gibbous19Wed
20Thu1:597.04:266.09:13-0.79:203.25:488:34Waning Gibbous20Thu
21Fri2:396.65:085.99:53-0.410:153.15:488:34Waning Gibbous21Fri
22Sat3:226.35:485.910:34-0.111:183.05:488:34Waning Gibbous22Sat
23Sun4:115.86:286.011:180.35:488:34Third Quarter23Sun
24Mon5:095.47:076.212:272.812:030.75:498:35Third Quarter24Mon
25Tue6:205.17:456.41:342.412:521.15:498:35Third Quarter25Tue
26Wed7:434.98:226.62:332.01:411.55:498:35Third Quarter26Wed
27Thu9:064.98:586.93:231.42:301.95:508:35Waning Crescent27Thu
28Fri10:195.09:357.24:070.83:192.25:508:35Waning Crescent28Fri
29Sat11:215.310:137.54:470.24:062.55:508:35Waning Crescent29Sat
30Sun12:155.65:27-0.34:522.75:518:35Waning Crescent30Sun
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 4:23 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 neap phase. Tonight's moon is 59% 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 near their weekly minimum.

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 First Quarter (59% illuminated). This places South San Francisco, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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