Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 8:54 am (-1.7 ft)
Next high tide : in 24m at 1:34 am (8.0 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Nov 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:146.15:016.711:292.97:356:11First Quarter1Fri
2Sat7:156.36:186.312:08-0.212:582.67:366:10First Quarter2Sat
3Sun7:106.56:386.01:120.21:152.16:375:09First Quarter3Sun
4Mon7:586.87:565.91:120.62:191.56:385:08Waxing Gibbous4Mon
5Tue8:397.09:055.92:060.93:120.96:395:07Waxing Gibbous5Tue
6Wed9:167.210:065.92:531.33:580.46:405:06Waxing Gibbous6Wed
7Thu9:497.311:016.03:371.74:390.16:415:05Waxing Gibbous7Thu
8Fri10:207.311:506.04:172.05:16-0.26:425:04Full Moon8Fri
9Sat10:507.34:552.45:51-0.36:435:03Full Moon9Sat
10Sun12:366.011:20 AM7.35:332.66:25-0.46:445:02Full Moon10Sun
11Mon1:205.911:50 AM7.26:102.96:59-0.46:455:01Full Moon11Mon
12Tue2:035.912:237.06:483.07:34-0.36:465:00Waning Gibbous12Tue
13Wed2:455.812:596.87:283.28:11-0.26:474:59Waning Gibbous13Wed
14Thu3:295.71:396.68:133.38:520.06:484:59Waning Gibbous14Thu
15Fri4:145.72:246.39:073.39:360.26:494:58Waning Gibbous15Fri
16Sat5:015.83:176.010:153.210:250.46:504:57Third Quarter16Sat
17Sun5:465.94:215.611:313.011:170.76:524:57Third Quarter17Sun
18Mon6:296.15:375.412:402.56:534:56Third Quarter18Mon
19Tue7:086.46:585.312:111.01:381.96:544:55Third Quarter19Tue
20Wed7:456.78:155.41:031.32:261.26:554:55Waning Crescent20Wed
21Thu8:217.19:245.61:541.63:120.56:564:54Waning Crescent21Thu
22Fri8:597.510:265.82:421.93:56-0.36:574:54Waning Crescent22Fri
23Sat9:387.911:236.13:302.14:40-0.96:584:53New Moon23Sat
24Sun10:208.14:182.45:26-1.46:594:53New Moon24Sun
25Mon12:186.211:05 AM8.35:062.66:13-1.67:004:52New Moon25Mon
26Tue1:106.311:54 AM8.25:572.77:02-1.67:014:52New Moon26Tue
27Wed2:026.412:448.06:522.77:52-1.57:024:52Waxing Crescent27Wed
28Thu2:546.41:397.67:522.88:44-1.17:034:51Waxing Crescent28Thu
29Fri3:476.42:377.19:012.79:37-0.67:044:51Waxing Crescent29Fri
30Sat4:406.53:436.410:192.510:32-0.17:054:51First Quarter30Sat
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 5:14 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 10% 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 Waxing Crescent (10% 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