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 2h 48m at 1:41 am (1.6 ft)
Next high tide : 7:02 am (5.1 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:48 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Oct 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:217.012:527.26:310.57:010.67:056:53New Moon1Mon
2Tue1:116.81:257.27:100.97:440.47:066:51New Moon2Tue
3Wed2:006.61:587.17:491.48:260.47:076:50Waxing Crescent3Wed
4Thu2:506.32:327.08:281.89:080.47:076:48Waxing Crescent4Thu
5Fri3:416.03:066.89:102.39:540.57:086:47Waxing Crescent5Fri
6Sat4:385.83:456.69:572.710:440.77:096:45Waxing Crescent6Sat
7Sun5:435.64:316.310:563.011:420.87:106:44First Quarter7Sun
8Mon6:575.55:276.112:123.27:116:42First Quarter8Mon
9Tue8:075.66:336.012:470.91:323.17:126:41First Quarter9Tue
10Wed9:015.87:416.01:510.92:372.97:136:39First Quarter10Wed
11Thu9:426.08:446.12:460.83:282.57:146:38Waxing Gibbous11Thu
12Fri10:156.29:406.23:330.84:112.17:156:36Waxing Gibbous12Fri
13Sat10:466.410:316.44:140.74:481.77:166:35Waxing Gibbous13Sat
14Sun11:156.611:196.54:510.75:241.27:176:33Waxing Gibbous14Sun
15Mon11:456.95:270.85:590.87:186:32Full Moon15Mon
16Tue12:066.512:167.16:021.06:360.37:186:31Full Moon16Tue
17Wed12:556.612:497.36:391.27:160.07:196:29Full Moon17Wed
18Thu1:456.51:247.47:181.68:00-0.37:206:28Full Moon18Thu
19Fri2:386.42:037.58:001.98:47-0.57:216:27Waning Gibbous19Fri
20Sat3:356.22:477.48:472.39:40-0.47:226:25Waning Gibbous20Sat
21Sun4:386.13:377.29:422.610:38-0.37:236:24Waning Gibbous21Sun
22Mon5:476.04:377.010:502.911:44-0.17:246:23Third Quarter22Mon
23Tue6:586.15:486.712:142.97:256:21Third Quarter23Tue
24Wed8:036.37:056.512:550.01:392.67:266:20Third Quarter24Wed
25Thu8:596.58:216.42:020.22:502.17:276:19Waning Crescent25Thu
26Fri9:466.89:316.43:020.33:501.67:286:18Waning Crescent26Fri
27Sat10:287.110:336.43:540.54:401.07:296:17Waning Crescent27Sat
28Sun11:057.211:306.44:400.75:260.57:306:15Waning Crescent28Sun
29Mon11:407.35:221.06:080.27:316:14New Moon29Mon
30Tue12:226.412:137.36:021.46:480.07:326:13New Moon30Tue
31Wed1:116.312:447.36:411.77:25-0.27:336:12New Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414391)

Common Questions About South San Francisco, CA Tides

Show All
What time does the tide turn (slack tide) in South San Francisco, CA today?

Slack tide in South San Francisco, CA is approximately 4:21 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 49% 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 (49% 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