Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide (tomorrow) : 3:43 am (0.5 ft)
Next high tide : in 5h 15m at 8:26 pm (7.1 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:48 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Apr 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:417.25:225.710:32-0.410:332.26:537:32Waxing Crescent1Sat
2Sun4:347.06:415.611:39-0.311:462.66:527:33First Quarter2Sun
3Mon5:376.78:005.712:52-0.26:507:34First Quarter3Mon
4Tue6:496.59:075.91:132.62:04-0.16:497:35First Quarter4Tue
5Wed8:046.410:016.22:332.43:09-0.16:477:36Waxing Gibbous5Wed
6Thu9:146.410:456.43:392.04:03-0.16:467:37Waxing Gibbous6Thu
7Fri10:166.411:236.64:341.54:500.06:457:38Waxing Gibbous7Fri
8Sat11:116.411:586.75:211.15:310.26:437:38Waxing Gibbous8Sat
9Sun12:006.36:040.76:080.56:427:39Full Moon9Sun
10Mon12:296.812:476.26:430.56:430.86:407:40Full Moon10Mon
11Tue12:586.71:316.17:190.37:171.26:397:41Full Moon11Tue
12Wed1:256.72:155.97:550.17:511.66:377:42Full Moon12Wed
13Thu1:526.72:595.78:300.18:251.96:367:43Waning Gibbous13Thu
14Fri2:216.63:465.59:070.19:012.36:347:44Waning Gibbous14Fri
15Sat2:526.44:385.39:470.19:432.66:337:45Waning Gibbous15Sat
16Sun3:286.35:375.210:320.210:352.96:327:46Waning Gibbous16Sun
17Mon4:126.06:455.211:250.411:473.06:307:47Third Quarter17Mon
18Tue5:065.87:525.312:250.46:297:48Third Quarter18Tue
19Wed6:125.78:465.51:113.01:280.46:287:49Third Quarter19Wed
20Thu7:245.69:285.82:222.72:260.46:267:49Third Quarter20Thu
21Fri8:345.710:046.03:162.33:170.36:257:50Waning Crescent21Fri
22Sat9:375.910:376.44:021.74:020.36:247:51Waning Crescent22Sat
23Sun10:356.111:116.74:441.14:450.36:227:52Waning Crescent23Sun
24Mon11:316.211:457.05:250.55:270.56:217:53Waning Crescent24Mon
25Tue12:256.36:08-0.16:090.86:207:54New Moon25Tue
26Wed12:217.31:206.46:52-0.66:521.16:197:55New Moon26Wed
27Thu12:597.52:166.37:39-1.07:371.56:177:56New Moon27Thu
28Fri1:407.63:146.28:28-1.28:261.96:167:57Waxing Crescent28Fri
29Sat2:247.54:156.19:20-1.29:212.36:157:58Waxing Crescent29Sat
30Sun3:147.35:206.010:16-1.010:272.56:147:59Waxing Crescent30Sun
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 12:04 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 69% 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 First Quarter (69% 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