Tides Today & Tomorrow in San Francisco, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in San Francisco, CA.
Next low tide : 4:47 pm (2.6 ft)
Next high tide : in 4h 51m at 12:12 pm (5.1 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9414290
Common Questions About Tides

San Francisco, CA Tides - Dec 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:314.912:456.56:423.37:49-1.27:064:51Waning Gibbous1Mon
2Tue3:284.91:426.17:473.38:45-0.97:074:51Waning Gibbous2Tue
3Wed4:255.02:475.69:073.29:45-0.57:084:51Third Quarter3Wed
4Thu5:205.24:035.010:352.910:460.07:084:51Third Quarter4Thu
5Fri6:115.45:274.611:572.311:450.57:094:50Third Quarter5Fri
6Sat6:565.76:534.31:051.57:104:50Waning Crescent6Sat
7Sun7:376.08:134.312:401.02:020.87:114:50Waning Crescent7Sun
8Mon8:156.39:234.41:301.52:520.27:124:50Waning Crescent8Mon
9Tue8:506.410:244.62:172.03:35-0.37:134:50Waning Crescent9Tue
10Wed9:246.411:194.73:022.44:15-0.67:144:51New Moon10Wed
11Thu9:576.43:452.84:53-0.77:144:51New Moon11Thu
12Fri12:084.810:30 AM6.34:273.15:29-0.87:154:51New Moon12Fri
13Sat12:544.811:03 AM6.25:093.36:04-0.77:164:51New Moon13Sat
14Sun1:384.811:38 AM6.05:503.46:41-0.67:174:51Waxing Crescent14Sun
15Mon2:194.712:145.76:333.57:19-0.57:174:51Waxing Crescent15Mon
16Tue3:004.612:545.57:203.57:58-0.27:184:52Waxing Crescent16Tue
17Wed3:404.61:375.18:143.58:400.07:194:52Waxing Crescent17Wed
18Thu4:214.72:274.79:203.39:240.37:194:52First Quarter18Thu
19Fri5:004.83:284.310:343.110:100.77:204:53First Quarter19Fri
20Sat5:375.04:443.911:432.610:591.17:204:53First Quarter20Sat
21Sun6:135.26:123.712:412.07:214:54First Quarter21Sun
22Mon6:485.67:383.81:291.37:224:54Waxing Gibbous22Mon
23Tue7:235.98:524.012:391.92:130.67:224:55Waxing Gibbous23Tue
24Wed8:006.39:564.31:282.32:55-0.17:224:55Waxing Gibbous24Wed
25Thu8:396.610:524.62:172.73:38-0.87:234:56Waxing Gibbous25Thu
26Fri9:216.911:444.83:062.94:22-1.37:234:56Full Moon26Fri
27Sat10:067.03:553.05:08-1.67:244:57Full Moon27Sat
28Sun12:335.010:55 AM7.14:453.15:55-1.77:244:58Full Moon28Sun
29Mon1:215.111:45 AM7.05:393.06:44-1.67:244:58Waning Gibbous29Mon
30Tue2:085.112:396.66:362.97:33-1.37:244:59Waning Gibbous30Tue
31Wed2:555.21:356.17:402.88:22-0.97:255:00Waning Gibbous31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414290)

Common Questions About San Francisco, CA Tides

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What time does the tide turn (slack tide) in San Francisco, CA today?

Slack tide in San Francisco, CA is approximately 2:29 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 San Francisco, CA?

San Francisco, CA is currently in a spring phase. Tonight's moon is 1% 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 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 San Francisco, CA?

Tide predictions for 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 San Francisco, CA?

Tide data for San Francisco, CA is sourced from NOAA Station #9414290. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414290.

What is the moon phase in San Francisco, CA tonight?

Tonight the moon over San Francisco, CA is New Moon (1% illuminated). This places 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