Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 1h 12m at 2:41 pm (3.0 ft)
Next high tide : 8:55 pm (7.9 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Oct 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:105.86:066.912:040.112:162.97:046:53First Quarter1Sun
2Mon8:206.07:226.81:170.21:422.77:056:52First Quarter2Mon
3Tue9:176.38:356.82:240.22:552.37:066:50Waxing Gibbous3Tue
4Wed10:046.69:416.83:220.23:541.87:076:48Waxing Gibbous4Wed
5Thu10:456.910:416.84:130.34:461.27:086:47Waxing Gibbous5Thu
6Fri11:237.111:366.84:580.55:330.87:096:45Waxing Gibbous6Fri
7Sat11:587.25:390.76:160.57:106:44Full Moon7Sat
8Sun12:276.712:317.36:181.16:570.27:116:43Full Moon8Sun
9Mon1:166.51:047.36:571.47:370.17:126:41Full Moon9Mon
10Tue2:056.41:357.27:351.88:160.17:136:40Waning Gibbous10Tue
11Wed2:536.12:087.08:142.28:560.27:136:38Waning Gibbous11Wed
12Thu3:435.92:426.88:562.69:390.37:146:37Waning Gibbous12Thu
13Fri4:365.73:216.69:432.910:260.57:156:35Waning Gibbous13Fri
14Sat5:365.64:076.310:403.111:210.77:166:34Third Quarter14Sat
15Sun6:415.55:036.111:543.27:176:33Third Quarter15Sun
16Mon7:445.66:095.912:220.91:133.17:186:31Third Quarter16Mon
17Tue8:345.87:205.81:250.92:192.87:196:30Third Quarter17Tue
18Wed9:146.08:275.92:210.93:112.47:206:28Waning Crescent18Wed
19Thu9:486.39:286.03:090.93:551.97:216:27Waning Crescent19Thu
20Fri10:196.510:236.13:511.04:351.47:226:26Waning Crescent20Fri
21Sat10:506.811:156.34:291.15:120.87:236:24Waning Crescent21Sat
22Sun11:227.15:071.25:500.37:246:23New Moon22Sun
23Mon12:056.411:55 AM7.45:451.46:29-0.27:256:22New Moon23Mon
24Tue12:566.412:317.66:241.77:11-0.67:266:21New Moon24Tue
25Wed1:486.41:097.77:062.07:57-0.87:276:19New Moon25Wed
26Thu2:426.31:527.77:512.38:45-0.97:286:18Waxing Crescent26Thu
27Fri3:396.22:407.68:412.59:38-0.87:296:17Waxing Crescent27Fri
28Sat4:396.13:347.39:402.710:36-0.57:306:16Waxing Crescent28Sat
29Sun4:436.13:376.99:532.810:40-0.26:315:15First Quarter29Sun
30Mon5:486.24:496.511:202.711:470.16:325:13First Quarter30Mon
31Tue6:496.46:096.212:432.36:335:12First Quarter31Tue
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 5:48 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 18% 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 Crescent (18% 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