Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 5h 44m at 2:47 am (1.0 ft)
Next high tide : 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 - May 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:277.52:586.18:16-1.08:102.06:138:00Waning Gibbous1Fri
2Sat2:067.33:565.99:03-1.09:002.46:118:01Waning Gibbous2Sat
3Sun2:477.04:565.89:51-0.89:572.86:108:01Waning Gibbous3Sun
4Mon3:316.66:015.710:43-0.511:073.06:098:02Waning Gibbous4Mon
5Tue4:216.27:075.711:40-0.26:088:03Third Quarter5Tue
6Wed5:215.88:075.812:283.012:410.16:078:04Third Quarter6Wed
7Thu6:305.58:555.91:452.81:410.46:068:05Third Quarter7Thu
8Fri7:445.39:336.02:492.42:350.56:058:06Third Quarter8Fri
9Sat8:545.310:056.23:411.93:220.76:048:07Waning Crescent9Sat
10Sun9:555.310:336.44:241.54:040.96:038:08Waning Crescent10Sun
11Mon10:495.410:596.65:031.04:411.16:028:09Waning Crescent11Mon
12Tue11:395.511:266.85:370.65:161.46:018:10Waning Crescent12Tue
13Wed12:275.66:100.25:501.76:008:10New Moon13Wed
14Thu1:135.76:43-0.26:242.06:008:11New Moon14Thu
15Fri12:247.02:005.77:16-0.57:002.25:598:12New Moon15Fri
16Sat12:567.12:485.77:53-0.77:392.55:588:13New Moon16Sat
17Sun1:317.13:395.78:33-0.98:222.75:578:14Waxing Crescent17Sun
18Mon2:107.14:325.79:18-1.09:132.95:568:15Waxing Crescent18Mon
19Tue2:556.95:295.810:08-0.910:153.05:568:16Waxing Crescent19Tue
20Wed3:486.66:285.911:03-0.711:313.05:558:16First Quarter20Wed
21Thu4:526.37:236.112:03-0.55:548:17First Quarter21Thu
22Fri6:076.08:146.312:552.71:05-0.25:548:18First Quarter22Fri
23Sat7:295.78:596.72:112.12:040.15:538:19First Quarter23Sat
24Sun8:505.79:417.03:151.43:000.45:528:20Waxing Gibbous24Sun
25Mon10:045.710:217.44:100.63:510.85:528:20Waxing Gibbous25Mon
26Tue11:115.811:007.65:00-0.14:401.25:518:21Waxing Gibbous26Tue
27Wed12:135.95:47-0.65:271.65:518:22Full Moon27Wed
28Thu1:106.06:33-1.06:142.05:508:23Full Moon28Thu
29Fri12:167.72:046.07:16-1.27:012.45:508:23Full Moon29Fri
30Sat12:557.62:576.07:59-1.27:492.65:508:24Full Moon30Sat
31Sun1:357.33:486.08:42-1.18:402.95:498:25Waning Gibbous31Sun
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 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