Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 11:11 pm (2.4 ft)
Next high tide : in 34m at 5:33 pm (6.5 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Nov 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:166.02:317.28:543.39:55-0.57:346:11Waning Gibbous1Wed
2Thu5:225.93:166.89:533.510:49-0.17:356:10Waning Gibbous2Thu
3Fri6:315.84:096.411:103.711:500.27:366:09Third Quarter3Fri
4Sat7:365.95:136.012:373.57:376:08Third Quarter4Sat
5Sun7:296.05:275.812:540.412:523.26:385:07Third Quarter5Sun
6Mon8:086.16:425.612:530.61:522.76:405:06Third Quarter6Mon
7Tue8:396.27:515.61:440.72:412.26:415:05Waning Crescent7Tue
8Wed9:056.48:525.62:260.93:221.76:425:04Waning Crescent8Wed
9Thu9:286.69:475.63:031.23:591.16:435:03Waning Crescent9Thu
10Fri9:526.910:395.73:361.54:320.66:445:02Waning Crescent10Fri
11Sat10:167.111:285.84:081.85:050.26:455:01New Moon11Sat
12Sun10:427.34:402.25:39-0.26:465:01New Moon12Sun
13Mon12:185.811:10 AM7.45:132.66:14-0.66:475:00New Moon13Mon
14Tue1:085.911:42 AM7.55:482.96:53-0.86:484:59New Moon14Tue
15Wed2:005.812:197.56:273.27:37-0.96:494:58Waxing Crescent15Wed
16Thu2:555.81:017.47:113.48:25-0.96:504:58Waxing Crescent16Thu
17Fri3:545.81:507.28:043.69:20-0.76:514:57Waxing Crescent17Fri
18Sat4:555.82:496.99:143.610:19-0.56:524:56First Quarter18Sat
19Sun5:535.94:016.510:443.411:22-0.36:534:56First Quarter19Sun
20Mon6:446.25:236.112:163.06:544:55First Quarter20Mon
21Tue7:286.56:495.912:230.01:302.26:554:54First Quarter21Tue
22Wed8:076.98:105.81:190.42:311.46:564:54Waxing Gibbous22Wed
23Thu8:447.39:245.82:100.83:230.56:574:53Waxing Gibbous23Thu
24Fri9:197.610:305.92:581.34:11-0.26:584:53Waxing Gibbous24Fri
25Sat9:547.811:316.03:431.84:56-0.77:004:53Full Moon25Sat
26Sun10:307.94:282.35:39-1.07:014:52Full Moon26Sun
27Mon12:286.111:06 AM7.95:132.76:20-1.17:024:52Full Moon27Mon
28Tue1:226.111:43 AM7.85:583.17:02-1.17:024:52Full Moon28Tue
29Wed2:146.112:217.56:463.37:44-0.97:034:51Waning Gibbous29Wed
30Thu3:066.11:017.27:363.58:28-0.67:044:51Waning Gibbous30Thu
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 8:22 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 transitional phase. Tonight's moon is 28% 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 Waxing Crescent (28% 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