Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 6h 48m at 8:42 am (-0.7 ft)
Next high tide : 3:49 pm (5.9 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Aug 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:305.79:377.34:280.13:573.36:138:17Waxing Gibbous1Sat
2Sun12:115.95:12-0.14:473.26:148:16Waxing Gibbous2Sun
3Mon12:465.95:50-0.25:303.16:158:15Waxing Gibbous3Mon
4Tue1:156.06:24-0.26:082.96:168:14Full Moon4Tue
5Wed1:416.06:55-0.26:442.76:178:13Full Moon5Wed
6Thu12:237.22:056.17:23-0.27:202.56:178:12Full Moon6Thu
7Fri1:007.02:296.37:500.07:562.36:188:11Full Moon7Fri
8Sat1:386.72:536.48:170.38:342.16:198:10Waning Gibbous8Sat
9Sun2:186.43:196.68:450.69:171.96:208:09Waning Gibbous9Sun
10Mon3:036.03:486.89:151.110:051.66:218:08Waning Gibbous10Mon
11Tue3:575.64:216.99:491.611:011.46:228:07Waning Gibbous11Tue
12Wed5:065.25:007.110:272.26:238:05Third Quarter12Wed
13Thu6:405.05:497.212:071.111:17 AM2.86:238:04Third Quarter13Thu
14Fri8:275.06:487.41:200.712:253.26:248:03Third Quarter14Fri
15Sat9:515.37:547.62:320.31:483.46:258:02Waning Crescent15Sat
16Sun10:475.68:597.83:35-0.23:043.36:268:00Waning Crescent16Sun
17Mon11:315.910:018.04:30-0.64:082.96:277:59Waning Crescent17Mon
18Tue12:096.25:19-0.95:052.56:287:58Waning Crescent18Tue
19Wed12:466.56:04-0.95:592.06:297:57New Moon19Wed
20Thu1:226.86:46-0.86:521.66:297:55New Moon20Thu
21Fri12:497.81:577.17:26-0.47:441.26:307:54New Moon21Fri
22Sat1:437.32:337.38:060.18:370.96:317:52Waxing Crescent22Sat
23Sun2:386.83:097.48:450.79:320.86:327:51Waxing Crescent23Sun
24Mon3:376.33:477.49:261.410:300.76:337:50Waxing Crescent24Mon
25Tue4:445.74:287.310:102.111:330.76:347:48First Quarter25Tue
26Wed6:055.45:157.111:032.86:357:47First Quarter26Wed
27Thu7:435.36:106.912:430.812:143.26:357:45First Quarter27Thu
28Fri9:125.57:136.81:550.71:373.46:367:44First Quarter28Fri
29Sat10:145.78:166.83:000.62:503.46:377:43Waxing Gibbous29Sat
30Sun10:575.89:146.93:550.43:473.26:387:41Waxing Gibbous30Sun
31Mon11:316.010:036.94:390.34:332.96:397:40Waxing Gibbous31Mon
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 12:15 pm — 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 93% 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 (93% 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