Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 9:14 am (-0.5 ft)
Next high tide : in 1h 57m at 2:04 am (6.8 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jan 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:346.88:124.81:561.17:245:01Third Quarter1Tue
2Wed7:146.99:355.012:522.62:480.67:245:02Waning Crescent2Wed
3Thu7:547.110:355.31:513.03:340.27:245:03Waning Crescent3Thu
4Fri8:357.211:215.62:463.34:14-0.17:245:03Waning Crescent4Fri
5Sat9:167.311:585.73:353.44:51-0.37:245:04Waning Crescent5Sat
6Sun9:567.44:183.45:25-0.67:245:05New Moon6Sun
7Mon12:325.810:35 AM7.54:573.35:59-0.77:245:06New Moon7Mon
8Tue1:035.911:14 AM7.55:353.26:32-0.87:245:07New Moon8Tue
9Wed1:336.011:54 AM7.46:133.17:04-0.97:245:08New Moon9Wed
10Thu2:036.012:347.26:532.97:38-0.87:245:09Waxing Crescent10Thu
11Fri2:346.21:166.97:382.78:12-0.57:245:10Waxing Crescent11Fri
12Sat3:066.32:046.58:302.48:48-0.17:245:11Waxing Crescent12Sat
13Sun3:396.63:015.99:292.19:270.67:245:12Waxing Crescent13Sun
14Mon4:156.84:145.310:371.710:111.37:235:13First Quarter14Mon
15Tue4:567.15:514.911:511.211:022.07:235:14First Quarter15Tue
16Wed5:427.37:414.91:060.67:235:15First Quarter16Wed
17Thu6:357.69:145.212:052.72:130.07:225:16Waxing Gibbous17Thu
18Fri7:327.810:205.61:183.13:13-0.67:225:17Waxing Gibbous18Fri
19Sat8:308.011:115.92:303.24:07-1.07:215:18Waxing Gibbous19Sat
20Sun9:278.111:556.23:353.24:56-1.37:215:19Waxing Gibbous20Sun
21Mon10:218.14:333.05:41-1.47:205:20Full Moon21Mon
22Tue12:366.311:12 AM8.05:262.76:23-1.37:205:21Full Moon22Tue
23Wed1:136.512:007.76:172.57:02-1.07:195:22Full Moon23Wed
24Thu1:506.512:477.37:082.27:39-0.67:195:23Waning Gibbous24Thu
25Fri2:246.61:346.77:582.08:15-0.17:185:25Waning Gibbous25Fri
26Sat2:576.72:236.18:511.98:490.67:175:26Waning Gibbous26Sat
27Sun3:306.73:185.59:471.79:251.37:175:27Waning Gibbous27Sun
28Mon4:036.74:275.010:491.610:032.07:165:28Third Quarter28Mon
29Tue4:406.76:034.711:561.410:502.67:155:29Third Quarter29Tue
30Wed5:216.78:064.71:051.17:155:30Third Quarter30Wed
31Thu6:116.79:335.12:070.87:145:31Third Quarter31Thu
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 5:39 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 spring phase. Tonight's moon is 87% 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 Gibbous (87% 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