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 7h 03m 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 - Jun 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:215.08:316.42:242.21:430.95:498:25Third Quarter1Thu
2Fri8:454.99:036.83:141.52:301.35:498:26Waning Crescent2Fri
3Sat10:045.09:367.23:590.73:161.85:488:27Waning Crescent3Sat
4Sun11:145.310:127.54:43-0.14:022.25:488:27Waning Crescent4Sun
5Mon12:175.55:26-0.84:502.65:488:28Waning Crescent5Mon
6Tue1:155.86:11-1.35:392.95:488:28New Moon6Tue
7Wed2:095.96:59-1.76:303.15:478:29New Moon7Wed
8Thu12:228.13:016.07:48-1.97:243.15:478:29New Moon8Thu
9Fri1:138.13:526.18:38-1.98:233.15:478:30Waxing Crescent9Fri
10Sat2:077.84:426.19:30-1.69:293.05:478:30Waxing Crescent10Sat
11Sun3:057.45:326.310:22-1.210:442.85:478:31Waxing Crescent11Sun
12Mon4:076.76:206.411:15-0.75:478:31First Quarter12Mon
13Tue5:166.17:076.712:042.412:07-0.15:478:32First Quarter13Tue
14Wed6:365.57:516.91:231.91:000.65:478:32First Quarter14Wed
15Thu8:055.18:337.12:341.31:521.25:478:33First Quarter15Thu
16Fri9:345.09:127.33:340.62:441.95:478:33Waxing Gibbous16Fri
17Sat10:525.29:497.44:260.13:342.45:478:33Waxing Gibbous17Sat
18Sun11:565.410:257.45:11-0.34:232.85:478:34Waxing Gibbous18Sun
19Mon12:505.65:51-0.55:103.15:488:34Waxing Gibbous19Mon
20Tue1:375.76:29-0.75:553.35:488:34Full Moon20Tue
21Wed2:195.87:04-0.76:373.45:488:34Full Moon21Wed
22Thu12:117.32:565.87:39-0.77:173.45:488:34Full Moon22Thu
23Fri12:487.23:315.88:14-0.77:563.45:498:35Full Moon23Fri
24Sat1:257.04:045.78:48-0.68:383.35:498:35Waning Gibbous24Sat
25Sun2:036.84:365.89:23-0.59:243.25:498:35Waning Gibbous25Sun
26Mon2:446.55:085.99:58-0.310:183.15:498:35Waning Gibbous26Mon
27Tue3:286.15:406.010:340.011:202.85:508:35Waning Gibbous27Tue
28Wed4:205.66:146.311:120.55:508:35Third Quarter28Wed
29Thu5:275.26:486.512:282.411:54 AM1.05:518:35Third Quarter29Thu
30Fri6:534.87:256.91:331.912:401.65:518:35Third Quarter30Fri
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