Tides Today & Tomorrow in San Francisco, CA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in San Francisco, CA.
Next low tide : 2:13 pm (3.5 ft)
Next high tide : in 5h 06m at 10:11 am (4.4 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (74% illuminated)
Tide Station Location : Station #9414290
Common Questions About Tides

San Francisco, CA Tides - May 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:534.37:254.511:510.55:136:59First Quarter1Fri
2Sat6:054.28:004.712:552.512:440.55:127:00First Quarter2Sat
3Sun7:134.38:325.01:432.01:300.55:117:01Waxing Gibbous3Sun
4Mon8:144.49:025.22:251.52:120.65:107:02Waxing Gibbous4Mon
5Tue9:104.59:325.53:021.02:510.85:097:03Waxing Gibbous5Tue
6Wed10:044.710:035.83:400.43:291.05:087:04Waxing Gibbous6Wed
7Thu10:564.810:366.04:18-0.24:081.35:077:05Full Moon7Thu
8Fri11:494.811:126.24:59-0.74:491.75:067:06Full Moon8Fri
9Sat12:434.85:42-1.15:332.05:057:07Full Moon9Sat
10Sun1:404.86:28-1.36:202.35:047:07Waning Gibbous10Sun
11Mon12:356.22:394.77:18-1.37:142.65:037:08Waning Gibbous11Mon
12Tue1:236.03:424.78:13-1.28:192.85:027:09Waning Gibbous12Tue
13Wed2:205.74:464.89:13-0.99:402.85:017:10Third Quarter13Wed
14Thu3:255.35:494.910:16-0.611:072.65:007:11Third Quarter14Thu
15Fri4:414.96:445.211:21-0.34:597:12Third Quarter15Fri
16Sat6:014.67:335.412:252.112:220.04:587:13Third Quarter16Sat
17Sun7:194.58:165.71:301.51:170.34:587:14Waning Crescent17Sun
18Mon8:294.58:545.92:240.92:060.74:577:14Waning Crescent18Mon
19Tue9:314.59:296.03:120.32:511.14:567:15Waning Crescent19Tue
20Wed10:284.510:026.03:55-0.13:331.54:557:16New Moon20Wed
21Thu11:204.610:336.04:34-0.44:131.94:557:17New Moon21Thu
22Fri12:094.65:11-0.64:532.24:547:18New Moon22Fri
23Sat12:564.65:47-0.65:322.54:537:19New Moon23Sat
24Sun1:424.56:22-0.66:132.84:537:19Waxing Crescent24Sun
25Mon12:065.62:284.56:59-0.66:573.04:527:20Waxing Crescent25Mon
26Tue12:415.43:144.47:37-0.47:463.14:527:21Waxing Crescent26Tue
27Wed1:205.14:024.48:19-0.28:453.24:517:22Waxing Crescent27Wed
28Thu2:064.84:514.59:050.09:553.14:517:22First Quarter28Thu
29Fri2:594.55:374.69:550.211:092.94:507:23First Quarter29Fri
30Sat4:034.26:204.810:470.44:507:24First Quarter30Sat
31Sun5:174.06:585.012:122.411:40 AM0.74:497:25First Quarter31Sun
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 12:12 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 transitional phase. Tonight's moon is 74% 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 Waxing Gibbous (74% 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