Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide (tomorrow) : in 53m at 11:16 pm (2.4 ft)
Next high tide : 4:31 am (5.6 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 - Dec 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:137.710:226.02:501.34:01-0.27:064:51Waning Crescent1Sun
2Mon9:518.011:246.23:381.74:48-0.97:064:51New Moon2Mon
3Tue10:318.24:252.25:35-1.37:074:51New Moon3Tue
4Wed12:236.311:12 AM8.25:142.56:21-1.57:084:50New Moon4Wed
5Thu1:186.311:55 AM8.16:032.87:08-1.57:094:50New Moon5Thu
6Fri2:136.312:407.86:563.17:55-1.37:104:50Waxing Crescent6Fri
7Sat3:076.31:277.47:523.28:44-0.97:114:50Waxing Crescent7Sat
8Sun4:016.22:176.98:563.39:34-0.57:124:50Waxing Crescent8Sun
9Mon4:556.23:126.310:093.210:27-0.17:134:50First Quarter9Mon
10Tue5:476.24:155.811:283.011:210.47:134:51First Quarter10Tue
11Wed6:346.35:305.412:422.67:144:51First Quarter11Wed
12Thu7:156.46:525.112:140.91:452.17:154:51First Quarter12Thu
13Fri7:506.68:125.11:061.32:371.67:164:51Waxing Gibbous13Fri
14Sat8:216.89:225.21:531.73:211.07:164:51Waxing Gibbous14Sat
15Sun8:517.010:215.32:372.14:000.57:174:52Waxing Gibbous15Sun
16Mon9:207.211:125.53:182.44:350.17:184:52Waxing Gibbous16Mon
17Tue9:517.311:595.73:572.75:08-0.27:184:52Waxing Gibbous17Tue
18Wed10:247.44:353.05:41-0.57:194:53Full Moon18Wed
19Thu12:425.810:58 AM7.55:133.16:15-0.77:194:53Full Moon19Thu
20Fri1:235.911:35 AM7.55:523.26:51-0.97:204:54Full Moon20Fri
21Sat2:046.012:147.56:323.37:30-0.97:204:54Waning Gibbous21Sat
22Sun2:466.012:567.37:173.38:12-0.97:214:55Waning Gibbous22Sun
23Mon3:296.01:427.08:093.38:56-0.77:214:55Waning Gibbous23Mon
24Tue4:136.12:366.69:113.19:44-0.47:224:56Waning Gibbous24Tue
25Wed4:586.33:406.210:242.810:340.17:224:56Third Quarter25Wed
26Thu5:436.54:595.711:442.411:290.67:234:57Third Quarter26Thu
27Fri6:276.96:305.312:591.77:234:58Third Quarter27Fri
28Sat7:117.28:035.312:261.22:030.97:234:58Waning Crescent28Sat
29Sun7:557.69:255.51:241.73:000.17:244:59Waning Crescent29Sun
30Mon8:397.910:335.82:212.23:52-0.67:245:00Waning Crescent30Mon
31Tue9:248.111:356.03:162.64:40-1.17:245:00Waning Crescent31Tue
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 1:53 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