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 50m 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 - May 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:505.010:466.34:17-0.24:110.96:147:59Waxing Gibbous1Thu
2Fri11:495.111:276.55:06-0.84:581.26:128:00Full Moon2Fri
3Sat12:465.15:53-1.25:461.56:118:01Full Moon3Sat
4Sun12:096.61:425.16:41-1.46:351.96:108:02Full Moon4Sun
5Mon12:536.52:375.07:30-1.47:282.16:098:03Waning Gibbous5Mon
6Tue1:396.23:344.98:20-1.28:252.46:088:04Waning Gibbous6Tue
7Wed2:275.84:324.89:11-0.99:302.66:078:05Waning Gibbous7Wed
8Thu3:205.45:324.710:06-0.510:462.66:068:06Third Quarter8Thu
9Fri4:194.96:324.811:04-0.16:058:07Third Quarter9Fri
10Sat5:274.47:254.912:042.412:030.36:048:08Third Quarter10Sat
11Sun6:414.18:115.01:152.11:000.66:038:08Third Quarter11Sun
12Mon7:564.08:495.12:151.71:520.96:028:09Waning Crescent12Mon
13Tue9:044.09:235.33:051.22:381.26:018:10Waning Crescent13Tue
14Wed10:034.19:535.43:470.83:201.56:008:11Waning Crescent14Wed
15Thu10:544.210:225.64:250.43:581.75:598:12Waning Crescent15Thu
16Fri11:414.310:515.75:000.14:342.05:588:13New Moon16Fri
17Sat12:254.35:32-0.25:102.25:588:14New Moon17Sat
18Sun1:074.46:04-0.45:452.45:578:15New Moon18Sun
19Mon1:494.56:37-0.66:222.55:568:15New Moon19Mon
20Tue12:295.82:314.57:12-0.77:022.75:558:16Waxing Crescent20Tue
21Wed1:065.73:154.57:50-0.87:462.85:558:17Waxing Crescent21Wed
22Thu1:465.64:024.68:32-0.78:382.85:548:18Waxing Crescent22Thu
23Fri2:325.44:504.69:17-0.69:412.75:538:19Waxing Crescent23Fri
24Sat3:265.05:404.810:08-0.410:542.55:538:19First Quarter24Sat
25Sun4:314.76:295.011:030.05:528:20First Quarter25Sun
26Mon5:484.47:175.412:112.112:010.35:528:21First Quarter26Mon
27Tue7:124.28:025.71:211.512:590.75:518:22First Quarter27Tue
28Wed8:344.28:476.12:220.81:561.05:518:22Waxing Gibbous28Wed
29Thu9:474.49:306.43:160.02:501.45:508:23Waxing Gibbous29Thu
30Fri10:524.610:146.64:06-0.63:431.75:508:24Waxing Gibbous30Fri
31Sat11:514.810:596.74:55-1.14:342.05:498:25Full Moon31Sat
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