Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 2h 12m at 3:39 pm (2.9 ft)
Next high tide : 9:42 pm (7.2 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Mar 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:036.911:52 AM7.45:500.96:15-0.46:406:03New Moon1Sat
2Sun12:417.112:447.16:390.66:570.06:396:04New Moon2Sun
3Mon1:197.21:376.77:290.47:380.56:376:05Waxing Crescent3Mon
4Tue1:577.22:336.28:210.48:221.16:366:06Waxing Crescent4Tue
5Wed2:387.13:345.89:150.49:091.76:346:07Waxing Crescent5Wed
6Thu3:216.94:445.410:140.510:042.26:336:08First Quarter6Thu
7Fri4:096.76:085.211:210.711:132.66:316:09First Quarter7Fri
8Sat5:056.57:335.312:330.76:306:10First Quarter8Sat
9Sun7:086.39:405.512:322.82:390.67:287:11First Quarter9Sun
10Mon8:136.310:285.72:442.73:360.57:277:12Waxing Gibbous10Mon
11Tue9:126.311:055.83:422.54:220.47:257:12Waxing Gibbous11Tue
12Wed10:036.411:366.04:302.25:010.37:247:13Waxing Gibbous12Wed
13Thu10:496.55:111.95:350.37:237:14Waxing Gibbous13Thu
14Fri12:046.111:32 AM6.55:481.66:050.47:217:15Full Moon14Fri
15Sat12:296.312:126.56:221.36:340.57:207:16Full Moon15Sat
16Sun12:556.412:536.46:551.17:030.67:187:17Full Moon16Sun
17Mon1:226.61:346.37:290.87:330.97:177:18Full Moon17Mon
18Tue1:506.72:176.18:050.58:051.27:157:19Waning Gibbous18Tue
19Wed2:216.83:045.98:440.38:401.57:137:20Waning Gibbous19Wed
20Thu2:546.93:585.69:290.29:201.97:127:21Waning Gibbous20Thu
21Fri3:336.85:025.410:200.210:082.37:107:22Waning Gibbous21Fri
22Sat4:206.86:185.211:200.111:102.67:097:23Third Quarter22Sat
23Sun5:186.77:395.312:300.17:077:24Third Quarter23Sun
24Mon6:286.68:495.512:322.71:420.07:067:25Third Quarter24Mon
25Tue7:436.69:445.91:582.62:48-0.17:047:26Waning Crescent25Tue
26Wed8:556.710:296.33:102.23:45-0.27:037:26Waning Crescent26Wed
27Thu10:016.811:106.64:101.64:35-0.37:017:27Waning Crescent27Thu
28Fri11:016.911:486.95:031.05:21-0.17:007:28Waning Crescent28Fri
29Sat11:576.95:520.56:050.16:587:29New Moon29Sat
30Sun12:257.112:506.76:390.16:470.46:577:30New Moon30Sun
31Mon1:027.31:436.67:25-0.27:280.86:557:31New Moon31Mon
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 6:40 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 85% 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 Gibbous (85% 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