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 21m 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 - Dec 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:505.912:247.06:412.97:26-0.47:064:51Waxing Crescent1Thu
2Fri2:305.91:006.97:203.08:03-0.37:074:51Waxing Crescent2Fri
3Sat3:125.91:396.68:053.18:43-0.27:084:50Waxing Crescent3Sat
4Sun3:566.02:256.48:583.19:28-0.17:094:50Waxing Crescent4Sun
5Mon4:436.13:206.010:043.010:180.27:104:50First Quarter5Mon
6Tue5:306.24:305.711:202.811:130.57:114:50First Quarter6Tue
7Wed6:176.55:525.512:332.37:114:50First Quarter7Wed
8Thu7:036.87:175.412:110.81:371.67:124:50First Quarter8Thu
9Fri7:477.28:355.61:091.12:320.87:134:51Waxing Gibbous9Fri
10Sat8:307.69:445.82:051.53:230.07:144:51Waxing Gibbous10Sat
11Sun9:147.910:466.12:591.74:11-0.67:154:51Waxing Gibbous11Sun
12Mon9:588.211:426.33:512.04:59-1.17:154:51Full Moon12Mon
13Tue10:448.34:422.25:46-1.47:164:51Full Moon13Tue
14Wed12:356.511:31 AM8.35:342.36:33-1.57:174:52Full Moon14Wed
15Thu1:276.612:198.16:282.47:21-1.47:174:52Waning Gibbous15Thu
16Fri2:176.61:087.77:242.58:08-1.17:184:52Waning Gibbous16Fri
17Sat3:076.62:007.28:242.68:57-0.77:194:53Waning Gibbous17Sat
18Sun3:586.62:556.69:302.59:47-0.27:194:53Waning Gibbous18Sun
19Mon4:496.63:566.010:432.410:400.47:204:53Third Quarter19Mon
20Tue5:406.65:085.511:582.211:350.97:204:54Third Quarter20Tue
21Wed6:296.76:315.11:081.87:214:54Third Quarter21Wed
22Thu7:156.87:565.112:331.42:081.47:214:55Third Quarter22Thu
23Fri7:576.99:105.21:291.92:590.97:224:55Waning Crescent23Fri
24Sat8:357.010:095.42:212.23:430.57:224:56Waning Crescent24Sat
25Sun9:107.210:585.63:082.44:210.27:224:57Waning Crescent25Sun
26Mon9:457.211:405.73:512.64:56-0.17:234:57Waning Crescent26Mon
27Tue10:197.34:312.85:29-0.37:234:58New Moon27Tue
28Wed12:185.910:54 AM7.35:092.86:01-0.47:234:59New Moon28Wed
29Thu12:546.011:29 AM7.35:462.96:33-0.57:244:59New Moon29Thu
30Fri1:296.012:067.26:232.97:06-0.67:245:00New Moon30Fri
31Sat2:046.112:447.17:022.87:43-0.67:245:01Waxing Crescent31Sat
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