Tides Today & Tomorrow in San Francisco, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in San Francisco, CA.
Next low tide : in 4h 07m at 10:51 pm (1.3 ft)
Next high tide (tomorrow) : 5:14 am (3.9 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:16 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9414290
Common Questions About Tides

San Francisco, CA Tides - Apr 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:545.59:475.52:411.23:00-0.15:556:32Waxing Gibbous1Tue
2Wed9:525.610:245.93:300.53:440.15:536:33Full Moon2Wed
3Thu10:495.611:036.24:18-0.14:280.35:526:34Full Moon3Thu
4Fri11:445.511:426.45:06-0.55:120.75:506:35Full Moon4Fri
5Sat12:415.35:56-0.85:581.15:496:36Waning Gibbous5Sat
6Sun12:246.41:395.16:46-0.96:461.65:476:36Waning Gibbous6Sun
7Mon1:086.32:404.87:40-0.87:392.05:466:37Waning Gibbous7Mon
8Tue1:576.03:474.68:37-0.68:432.45:446:38Waning Gibbous8Tue
9Wed2:515.65:004.59:40-0.310:012.65:436:39Third Quarter9Wed
10Thu3:535.26:124.510:470.011:242.55:416:40Third Quarter10Thu
11Fri5:044.87:144.711:540.25:406:41Third Quarter11Fri
12Sat6:184.78:034.912:382.312:540.45:386:42Third Quarter12Sat
13Sun7:264.68:435.01:391.91:450.55:376:43Waning Crescent13Sun
14Mon8:264.69:165.12:291.52:280.75:366:44Waning Crescent14Mon
15Tue9:184.69:445.23:111.13:060.85:346:45Waning Crescent15Tue
16Wed10:054.610:115.33:480.73:411.15:336:46Waning Crescent16Wed
17Thu10:484.610:365.44:220.54:131.35:316:47New Moon17Thu
18Fri11:294.611:025.54:540.24:441.65:306:47New Moon18Fri
19Sat12:104.55:250.05:151.85:296:48New Moon19Sat
20Sun12:524.55:57-0.15:482.15:276:49New Moon20Sun
21Mon12:005.51:364.46:31-0.26:232.35:266:50Waxing Crescent21Mon
22Tue12:335.52:244.37:09-0.37:022.55:256:51Waxing Crescent22Tue
23Wed1:105.43:174.27:52-0.27:502.75:236:52Waxing Crescent23Wed
24Thu1:545.24:164.28:41-0.28:512.85:226:53Waxing Crescent24Thu
25Fri2:475.05:164.39:37-0.110:082.85:216:54First Quarter25Fri
26Sat3:524.86:134.510:390.011:282.55:206:55First Quarter26Sat
27Sun6:074.68:024.812:410.16:187:56First Quarter27Sun
28Mon7:264.68:455.21:371.91:400.26:177:57Waxing Gibbous28Mon
29Tue8:404.79:265.62:361.22:340.46:167:58Waxing Gibbous29Tue
30Wed9:484.810:066.03:280.53:230.66:157:58Waxing Gibbous30Wed
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 2:02 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 64% 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 Third Quarter (64% 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