Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 10:24 am (0.2 ft)
Next high tide : in 1h 02m at 3:33 am (6.1 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 - May 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:155.810:546.64:341.34:260.56:138:00Waxing Gibbous1Sat
2Sun11:155.911:237.05:140.55:050.96:118:01Waxing Gibbous2Sun
3Mon12:136.05:56-0.25:441.36:108:01Full Moon3Mon
4Tue1:126.06:39-0.96:241.86:098:02Full Moon4Tue
5Wed12:287.62:116.07:24-1.37:072.26:088:03Full Moon5Wed
6Thu1:067.83:115.98:13-1.67:542.66:078:04Waning Gibbous6Thu
7Fri1:497.74:145.89:04-1.68:473.06:068:05Waning Gibbous7Fri
8Sat2:387.55:215.810:01-1.49:513.26:058:06Waning Gibbous8Sat
9Sun3:347.26:295.811:02-1.111:143.26:048:07Third Quarter9Sun
10Mon4:396.77:325.912:08-0.86:038:08Third Quarter10Mon
11Tue5:556.28:266.212:483.01:13-0.46:028:09Third Quarter11Tue
12Wed7:165.89:116.42:102.52:13-0.16:018:10Third Quarter12Wed
13Thu8:355.69:506.73:161.83:050.36:008:10Waning Crescent13Thu
14Fri9:485.510:246.84:121.23:510.76:008:11Waning Crescent14Fri
15Sat10:535.510:547.04:590.64:321.15:598:12Waning Crescent15Sat
16Sun11:515.511:227.15:400.15:101.65:588:13Waning Crescent16Sun
17Mon12:455.56:18-0.25:472.15:578:14New Moon17Mon
18Tue1:355.66:52-0.56:232.55:568:15New Moon18Tue
19Wed12:147.12:235.67:25-0.66:592.85:568:15New Moon19Wed
20Thu12:417.03:095.67:59-0.77:363.15:558:16New Moon20Thu
21Fri1:116.93:555.58:34-0.68:153.35:548:17Waxing Crescent21Fri
22Sat1:456.84:425.59:11-0.68:583.45:548:18Waxing Crescent22Sat
23Sun2:236.65:325.49:53-0.49:503.55:538:19Waxing Crescent23Sun
24Mon3:076.36:215.510:38-0.310:563.45:528:19Waxing Crescent24Mon
25Tue3:576.07:075.611:28-0.15:528:20First Quarter25Tue
26Wed4:565.77:475.812:153.312:200.05:518:21First Quarter26Wed
27Thu6:075.48:226.01:282.91:110.35:518:22First Quarter27Thu
28Fri7:275.28:546.42:292.32:010.65:508:22First Quarter28Fri
29Sat8:485.29:266.83:201.52:490.95:508:23Waxing Gibbous29Sat
30Sun10:045.39:597.24:060.73:351.45:498:24Waxing Gibbous30Sun
31Mon11:135.510:347.64:51-0.14:211.85:498:25Waxing 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 6:58 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