Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 2h 33m at 1:32 am (1.3 ft)
Next high tide : 7:24 am (4.8 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - May 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:596.72:165.77:43-0.27:312.16:137:59Full Moon1Sat
2Sun1:256.72:595.68:16-0.28:052.46:128:00Waning Gibbous2Sun
3Mon1:546.63:455.58:51-0.38:422.66:118:01Waning Gibbous3Mon
4Tue2:266.54:345.49:29-0.29:232.96:108:02Waning Gibbous4Tue
5Wed3:036.35:285.410:12-0.110:153.16:098:03Waning Gibbous5Wed
6Thu3:476.16:275.411:010.011:253.16:088:03Third Quarter6Thu
7Fri4:415.97:255.511:570.16:078:04Third Quarter7Fri
8Sat5:475.78:155.712:473.012:570.26:068:05Third Quarter8Sat
9Sun7:025.68:586.02:002.61:550.26:058:06Third Quarter9Sun
10Mon8:175.69:366.42:582.12:490.36:048:07Waning Crescent10Mon
11Tue9:285.710:126.73:471.43:380.46:038:08Waning Crescent11Tue
12Wed10:335.910:487.14:340.74:250.66:028:09Waning Crescent12Wed
13Thu11:346.111:267.45:190.05:110.96:018:10Waning Crescent13Thu
14Fri12:336.26:05-0.75:571.36:008:11New Moon14Fri
15Sat12:057.71:316.36:52-1.26:441.65:598:11New Moon15Sat
16Sun12:477.82:286.37:41-1.57:342.05:598:12New Moon16Sun
17Mon1:317.83:266.28:31-1.68:272.35:588:13Waxing Crescent17Mon
18Tue2:197.64:266.29:23-1.59:282.55:578:14Waxing Crescent18Tue
19Wed3:107.35:276.210:18-1.210:382.75:568:15Waxing Crescent19Wed
20Thu4:086.86:296.211:17-0.811:582.65:558:16First Quarter20Thu
21Fri5:136.37:296.312:19-0.35:558:16First Quarter21Fri
22Sat6:265.88:226.51:192.41:200.15:548:17First Quarter22Sat
23Sun7:445.59:096.62:311.92:180.45:538:18First Quarter23Sun
24Mon9:005.39:496.83:311.43:100.85:538:19Waxing Gibbous24Mon
25Tue10:085.310:236.94:210.93:561.15:528:20Waxing Gibbous25Tue
26Wed11:085.410:546.95:050.54:371.55:528:20Waxing Gibbous26Wed
27Thu12:005.55:430.25:161.85:518:21Waxing Gibbous27Thu
28Fri12:475.56:18-0.15:522.25:518:22Full Moon28Fri
29Sat1:325.66:51-0.36:282.45:508:23Full Moon29Sat
30Sun12:207.02:135.67:23-0.57:032.75:508:23Full Moon30Sun
31Mon12:507.02:545.67:55-0.57:402.85:498:24Full Moon31Mon
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 4:28 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 neap phase. Tonight's moon is 50% 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 Third Quarter (50% 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