Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide (tomorrow) : in 2h 03m at 11:16 pm (2.4 ft)
Next high tide : 4:31 am (5.6 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jan 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:068.24:082.95:26-1.37:245:01New Moon1Wed
2Thu12:276.210:52 AM8.15:013.16:11-1.47:245:02New Moon2Thu
3Fri1:146.311:38 AM8.05:533.16:54-1.37:245:03New Moon3Fri
4Sat1:596.312:237.76:453.17:37-1.17:245:04Waxing Crescent4Sat
5Sun2:426.31:087.37:373.08:18-0.77:245:04Waxing Crescent5Sun
6Mon3:236.31:546.88:312.98:59-0.37:245:05Waxing Crescent6Mon
7Tue4:036.22:426.29:312.89:400.27:245:06Waxing Crescent7Tue
8Wed4:426.23:375.610:372.610:220.87:245:07First Quarter8Wed
9Thu5:206.34:475.111:482.311:081.47:245:08First Quarter9Thu
10Fri5:576.46:164.812:561.97:245:09First Quarter10Fri
11Sat6:356.67:574.71:561.47:245:10First Quarter11Sat
12Sun7:146.89:225.012:532.52:460.97:245:11Waxing Gibbous12Sun
13Mon7:537.010:245.31:492.83:300.47:245:12Waxing Gibbous13Mon
14Tue8:347.211:115.62:433.14:090.07:235:13Waxing Gibbous14Tue
15Wed9:157.411:515.83:313.24:46-0.47:235:14Waxing Gibbous15Wed
16Thu9:567.54:153.35:22-0.77:235:15Full Moon16Thu
17Fri12:285.910:38 AM7.74:563.25:58-1.07:225:16Full Moon17Fri
18Sat1:036.011:20 AM7.75:373.16:35-1.17:225:17Full Moon18Sat
19Sun1:376.112:037.76:193.07:13-1.17:215:18Full Moon19Sun
20Mon2:126.212:487.57:052.87:52-1.07:215:19Waning Gibbous20Mon
21Tue2:486.31:377.17:562.58:31-0.67:205:20Waning Gibbous21Tue
22Wed3:256.52:316.68:542.29:13-0.17:205:22Waning Gibbous22Wed
23Thu4:046.73:366.010:001.99:570.67:195:23Third Quarter23Thu
24Fri4:466.94:575.411:141.510:471.47:195:24Third Quarter24Fri
25Sat5:327.26:375.012:311.07:185:25Third Quarter25Sat
26Sun6:227.48:205.11:430.47:175:26Third Quarter26Sun
27Mon7:167.69:415.512:542.72:46-0.27:175:27Waning Crescent27Mon
28Tue8:117.710:425.82:053.03:42-0.67:165:28Waning Crescent28Tue
29Wed9:057.811:316.13:113.14:31-0.97:155:29Waning Crescent29Wed
30Thu9:567.84:093.05:16-1.17:145:30New Moon30Thu
31Fri12:136.210:45 AM7.85:012.95:58-1.07:145:31New Moon31Fri
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 1:53 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 71% 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 Waning Gibbous (71% 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