Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 4:46 pm (3.2 ft)
Next high tide : in 2h 07m at 12:32 pm (5.8 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Oct 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:185.84:037.010:143.011:210.27:056:52First Quarter1Thu
2Fri6:345.75:006.711:283.27:066:50First Quarter2Fri
3Sat7:495.76:076.412:280.412:543.27:076:49First Quarter3Sat
4Sun8:505.97:196.21:360.62:093.07:086:47First Quarter4Sun
5Mon9:366.08:276.12:360.73:092.67:096:46Waxing Gibbous5Mon
6Tue10:126.29:276.23:260.73:582.27:106:44Waxing Gibbous6Tue
7Wed10:416.310:196.24:070.84:401.87:106:43Waxing Gibbous7Wed
8Thu11:056.511:076.24:431.05:171.47:116:41Waxing Gibbous8Thu
9Fri11:296.611:526.25:151.25:511.07:126:40Full Moon9Fri
10Sat11:536.85:451.46:230.77:136:39Full Moon10Sat
11Sun12:366.112:187.06:151.76:550.47:146:37Full Moon11Sun
12Mon1:206.112:457.16:452.07:290.17:156:36Full Moon12Mon
13Tue2:056.01:157.27:172.38:05-0.17:166:34Waning Gibbous13Tue
14Wed2:545.91:487.27:522.68:46-0.27:176:33Waning Gibbous14Wed
15Thu3:465.72:277.28:312.99:33-0.27:186:32Waning Gibbous15Thu
16Fri4:465.63:127.09:183.210:27-0.17:196:30Waning Gibbous16Fri
17Sat5:525.64:096.810:203.311:290.07:206:29Third Quarter17Sat
18Sun6:595.75:176.611:433.37:216:27Third Quarter18Sun
19Mon7:575.96:366.412:360.11:123.07:226:26Third Quarter19Mon
20Tue8:456.27:566.31:420.22:272.47:236:25Third Quarter20Tue
21Wed9:276.69:116.42:400.33:271.67:246:23Waning Crescent21Wed
22Thu10:057.010:196.43:310.54:210.87:256:22Waning Crescent22Thu
23Fri10:427.411:216.54:180.85:100.17:266:21Waning Crescent23Fri
24Sat11:187.75:031.25:57-0.47:276:20New Moon24Sat
25Sun12:206.510:55 AM7.94:471.65:42-0.86:285:18New Moon25Sun
26Mon12:176.411:33 AM7.95:312.06:28-1.06:295:17New Moon26Mon
27Tue1:126.312:127.86:162.47:13-0.96:305:16Waxing Crescent27Tue
28Wed2:076.212:537.67:032.78:00-0.76:315:15Waxing Crescent28Wed
29Thu3:046.11:367.27:553.08:49-0.46:325:14Waxing Crescent29Thu
30Fri4:025.92:246.88:553.29:41-0.16:335:13Waxing Crescent30Fri
31Sat5:035.93:186.410:073.310:380.36:345:12First Quarter31Sat
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 2:39 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 spring phase. Tonight's moon is 4% 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 maximum.

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 Crescent (4% illuminated). This places South San Francisco, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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