Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 12:38 pm (2.0 ft)
Next high tide : in 3h 35m at 7:24 am (4.8 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jan 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:448.24:472.55:51-1.47:245:01Full Moon1Fri
2Sat12:446.511:30 AM8.15:392.66:36-1.47:245:02Full Moon2Sat
3Sun1:316.512:177.96:322.67:20-1.27:245:03Full Moon3Sun
4Mon2:176.61:047.57:252.68:04-0.97:245:04Waning Gibbous4Mon
5Tue3:026.61:527.08:212.68:48-0.47:245:04Waning Gibbous5Tue
6Wed3:476.52:426.49:212.69:320.17:245:05Waning Gibbous6Wed
7Thu4:316.53:385.810:272.410:180.67:245:06Third Quarter7Thu
8Fri5:166.54:455.311:372.211:091.27:245:07Third Quarter8Fri
9Sat6:006.56:085.012:461.97:245:08Third Quarter9Sat
10Sun6:446.67:404.912:041.71:481.57:245:09Third Quarter10Sun
11Mon7:266.89:005.01:012.22:411.07:245:10Waning Crescent11Mon
12Tue8:076.910:025.31:572.53:260.67:245:11Waning Crescent12Tue
13Wed8:467.110:505.52:492.74:060.27:245:12Waning Crescent13Wed
14Thu9:247.211:315.73:352.84:42-0.17:235:13Waning Crescent14Thu
15Fri10:037.44:162.95:16-0.47:235:14New Moon15Fri
16Sat12:075.910:41 AM7.54:552.95:49-0.67:235:15New Moon16Sat
17Sun12:426.011:20 AM7.55:332.86:23-0.87:225:16New Moon17Sun
18Mon1:176.111:59 AM7.56:122.76:58-0.87:225:17New Moon18Mon
19Tue1:516.212:417.36:542.67:35-0.77:215:18Waxing Crescent19Tue
20Wed2:276.31:257.07:402.58:14-0.57:215:19Waxing Crescent20Wed
21Thu3:056.52:146.68:312.38:55-0.17:205:20Waxing Crescent21Thu
22Fri3:456.63:126.19:312.19:410.47:205:21Waxing Crescent22Fri
23Sat4:286.84:245.610:411.810:321.07:195:23First Quarter23Sat
24Sun5:167.05:535.311:571.411:301.67:195:24First Quarter24Sun
25Mon6:087.27:305.21:110.87:185:25First Quarter25Mon
26Tue7:037.48:545.412:372.12:180.27:175:26Waxing Gibbous26Tue
27Wed7:587.710:015.81:452.43:16-0.37:175:27Waxing Gibbous27Wed
28Thu8:527.810:566.12:502.54:07-0.77:165:28Waxing Gibbous28Thu
29Fri9:447.911:436.33:482.54:54-1.07:155:29Waxing Gibbous29Fri
30Sat10:337.94:422.55:38-1.17:145:30Full Moon30Sat
31Sun12:266.511:21 AM7.85:322.36:20-1.07:145:31Full Moon31Sun
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 10:01 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 transitional phase. Tonight's moon is 39% 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 shifting between spring and neap.

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 Third Quarter (39% illuminated). This places South San Francisco, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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