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 (tomorrow) : in 6h 45m at 2:47 am (1.0 ft)
Next high tide (tomorrow) : 8:35 am (4.9 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 - Apr 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:287.31:596.77:44-0.27:520.66:537:32Full Moon1Wed
2Thu2:067.32:566.48:33-0.48:361.26:527:33Waning Gibbous2Thu
3Fri2:457.33:566.09:24-0.59:231.86:507:34Waning Gibbous3Fri
4Sat3:267.15:035.710:19-0.310:172.36:497:35Waning Gibbous4Sat
5Sun4:126.86:195.511:18-0.111:252.76:477:36Third Quarter5Sun
6Mon5:056.47:415.512:240.16:467:37Third Quarter6Mon
7Tue6:076.18:525.712:492.91:330.26:447:38Third Quarter7Tue
8Wed7:185.99:465.82:102.82:370.36:437:39Third Quarter8Wed
9Thu8:275.810:276.03:152.53:310.36:417:40Waning Crescent9Thu
10Fri9:295.911:006.14:072.24:170.36:407:40Waning Crescent10Fri
11Sat10:225.911:286.24:501.84:550.46:387:41Waning Crescent11Sat
12Sun11:096.011:536.35:281.45:290.56:377:42Waning Crescent12Sun
13Mon11:526.06:021.16:010.76:367:43New Moon13Mon
14Tue12:176.412:346.06:340.76:311.06:347:44New Moon14Tue
15Wed12:416.51:165.97:050.47:001.26:337:45New Moon15Wed
16Thu1:076.72:005.87:370.27:311.66:317:46New Moon16Thu
17Fri1:356.72:465.78:110.08:051.96:307:47Waxing Crescent17Fri
18Sat2:046.83:365.68:50-0.28:422.36:297:48Waxing Crescent18Sat
19Sun2:386.84:335.49:33-0.39:252.66:277:49Waxing Crescent19Sun
20Mon3:186.75:395.410:24-0.310:202.96:267:50Waxing Crescent20Mon
21Tue4:076.56:515.411:23-0.311:343.06:257:50First Quarter21Tue
22Wed5:086.37:595.612:29-0.26:237:51First Quarter22Wed
23Thu6:236.28:545.91:022.91:37-0.26:227:52First Quarter23Thu
24Fri7:426.19:406.22:202.52:40-0.36:217:53First Quarter24Fri
25Sat8:586.210:216.63:241.93:35-0.26:207:54Waxing Gibbous25Sat
26Sun10:066.310:596.94:191.24:250.06:187:55Waxing Gibbous26Sun
27Mon11:096.411:367.25:090.55:110.26:177:56Waxing Gibbous27Mon
28Tue12:086.45:57-0.15:560.66:167:57Full Moon28Tue
29Wed12:127.41:056.36:44-0.66:401.16:157:58Full Moon29Wed
30Thu12:497.52:016.27:30-0.97:241.56:147:59Full Moon30Thu
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 5:41 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 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