Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 1h 25m at 7:52 pm (3.2 ft)
Next high tide (tomorrow) : 1:26 am (7.1 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Dec 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:196.21:407.28:103.28:55-0.77:064:51Waxing Crescent1Sat
2Sun4:096.22:316.69:153.19:43-0.27:074:51Waxing Crescent2Sun
3Mon4:576.23:286.010:283.010:320.37:084:50First Quarter3Mon
4Tue5:436.24:355.511:442.711:220.87:084:50First Quarter4Tue
5Wed6:256.35:545.112:542.27:094:50First Quarter5Wed
6Thu7:026.57:224.912:121.31:541.77:104:50First Quarter6Thu
7Fri7:366.78:455.01:031.82:441.17:114:50Waxing Gibbous7Fri
8Sat8:086.99:535.21:512.23:270.67:124:50Waxing Gibbous8Sat
9Sun8:407.110:485.42:372.64:050.27:134:50Waxing Gibbous9Sun
10Mon9:137.211:365.63:212.94:40-0.27:134:51Waxing Gibbous10Mon
11Tue9:487.44:023.15:14-0.57:144:51Full Moon11Tue
12Wed12:185.710:25 AM7.54:423.35:49-0.77:154:51Full Moon12Wed
13Thu12:585.811:03 AM7.55:213.36:24-0.97:164:51Full Moon13Thu
14Fri1:365.911:43 AM7.56:013.37:01-1.07:164:51Full Moon14Fri
15Sat2:156.012:257.46:443.37:40-1.07:174:52Waning Gibbous15Sat
16Sun2:546.01:107.27:333.28:21-0.87:184:52Waning Gibbous16Sun
17Mon3:336.12:006.88:293.09:04-0.57:184:52Waning Gibbous17Mon
18Tue4:136.32:576.39:352.79:49-0.17:194:53Waning Gibbous18Tue
19Wed4:546.54:085.710:502.310:370.57:194:53Third Quarter19Wed
20Thu5:366.85:355.312:071.77:204:54Third Quarter20Thu
21Fri6:207.27:135.11:181.07:214:54Third Quarter21Fri
22Sat7:067.58:465.212:281.92:200.27:214:55Waning Crescent22Sat
23Sun7:537.810:015.51:292.43:16-0.57:214:55Waning Crescent23Sun
24Mon8:418.111:035.82:302.84:06-1.07:224:56Waning Crescent24Mon
25Tue9:298.211:556.13:293.04:54-1.37:224:56New Moon25Tue
26Wed10:178.24:243.15:39-1.47:234:57New Moon26Wed
27Thu12:416.211:05 AM8.15:173.16:23-1.47:234:58New Moon27Thu
28Fri1:256.311:51 AM7.86:093.07:04-1.27:234:58New Moon28Fri
29Sat2:056.312:367.56:592.97:44-0.97:234:59Waxing Crescent29Sat
30Sun2:446.31:207.07:512.88:22-0.57:245:00Waxing Crescent30Sun
31Mon3:216.32:056.58:452.78:580.17:245:01Waxing Crescent31Mon
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 10:39 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 97% 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 Full Moon (97% 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