Tides Today & Tomorrow in San Francisco, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in San Francisco, CA.
Next low tide (tomorrow) : in 32m at 11:31 pm (2.1 ft)
Next high tide : 5:00 am (4.4 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9414290
Common Questions About Tides

San Francisco, CA Tides - Oct 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:065.52:016.37:321.38:19-0.17:056:53Waxing Crescent1Tue
2Wed3:085.22:436.28:202.09:160.07:066:51Waxing Crescent2Wed
3Thu4:164.83:305.99:142.510:170.17:076:50Waxing Crescent3Thu
4Fri5:344.64:245.610:233.011:260.37:086:48First Quarter4Fri
5Sat6:574.65:285.311:473.27:096:47First Quarter5Sat
6Sun8:104.86:385.112:360.41:083.17:096:45First Quarter6Sun
7Mon9:044.97:465.11:400.52:132.87:106:44Waxing Gibbous7Mon
8Tue9:475.18:475.12:350.53:052.57:116:42Waxing Gibbous8Tue
9Wed10:215.29:395.23:200.53:482.17:126:41Waxing Gibbous9Wed
10Thu10:505.210:255.23:590.64:261.77:136:40Waxing Gibbous10Thu
11Fri11:155.311:075.24:320.75:001.47:146:38Waxing Gibbous11Fri
12Sat11:385.411:495.15:030.95:321.17:156:37Full Moon12Sat
13Sun12:025.55:321.26:030.87:166:35Full Moon13Sun
14Mon12:305.012:265.66:011.56:350.67:176:34Full Moon14Mon
15Tue1:134.912:525.76:311.87:090.47:186:32Full Moon15Tue
16Wed1:584.71:215.77:032.27:460.37:196:31Waning Gibbous16Wed
17Thu2:484.61:535.77:382.58:290.27:206:30Waning Gibbous17Thu
18Fri3:454.42:325.68:192.99:190.27:216:28Waning Gibbous18Fri
19Sat4:534.33:195.59:123.210:180.27:226:27Third Quarter19Sat
20Sun6:084.44:205.310:253.411:250.27:236:26Third Quarter20Sun
21Mon7:184.55:345.211:543.37:246:24Third Quarter21Mon
22Tue8:134.86:525.212:350.11:142.97:256:23Third Quarter22Tue
23Wed8:585.18:075.31:380.02:172.37:266:22Waning Crescent23Wed
24Thu9:375.59:145.52:330.03:111.67:276:20Waning Crescent24Thu
25Fri10:145.810:165.63:220.14:010.97:286:19Waning Crescent25Fri
26Sat10:506.111:165.64:080.44:480.27:296:18New Moon26Sat
27Sun11:266.44:520.75:35-0.37:306:17New Moon27Sun
28Mon12:135.512:036.55:351.26:22-0.77:316:16New Moon28Mon
29Tue1:105.412:416.66:191.77:10-0.87:326:14New Moon29Tue
30Wed2:085.21:206.47:052.27:58-0.87:336:13Waxing Crescent30Wed
31Thu3:085.02:026.17:542.78:48-0.67:346:12Waxing Crescent31Thu
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 2:15 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 San Francisco, CA?

San Francisco, CA is currently in a transitional phase. Tonight's moon is 38% 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 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 First Quarter (38% illuminated). This places 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