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 2h 32m at 9:26 am (1.5 ft)
Next high tide : 4:21 pm (5.9 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 - Jan 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:295.21:046.27:132.87:55-0.97:255:02Waning Gibbous1Tue
2Wed3:145.31:595.58:182.78:41-0.37:255:03Waning Gibbous2Wed
3Thu3:585.33:004.89:292.59:270.37:255:04Third Quarter3Thu
4Fri4:435.44:124.210:442.110:161.07:255:04Third Quarter4Fri
5Sat5:265.55:413.711:561.711:081.77:255:05Third Quarter5Sat
6Sun6:075.67:213.61:001.27:255:06Third Quarter6Sun
7Mon6:475.78:473.912:042.31:540.77:255:07Waning Crescent7Mon
8Tue7:265.99:514.11:012.82:390.37:255:08Waning Crescent8Tue
9Wed8:046.010:404.41:553.13:20-0.17:255:09Waning Crescent9Wed
10Thu8:436.111:214.62:433.33:57-0.37:245:10Waning Crescent10Thu
11Fri9:216.111:564.63:273.44:31-0.57:245:11New Moon11Fri
12Sat9:596.24:063.35:05-0.67:245:12New Moon12Sat
13Sun12:284.710:37 AM6.24:433.35:37-0.77:245:13New Moon13Sun
14Mon12:594.711:15 AM6.15:193.26:10-0.77:235:14New Moon14Mon
15Tue1:294.811:53 AM6.05:563.06:43-0.77:235:15Waxing Crescent15Tue
16Wed2:004.812:325.76:382.97:16-0.57:235:16Waxing Crescent16Wed
17Thu2:314.91:165.47:252.77:52-0.27:225:17Waxing Crescent17Thu
18Fri3:045.12:084.98:212.48:300.47:225:18Waxing Crescent18Fri
19Sat3:395.33:134.39:252.19:121.07:215:19First Quarter19Sat
20Sun4:175.64:413.810:381.610:011.77:215:20First Quarter20Sun
21Mon5:015.86:303.711:521.011:012.47:205:21First Quarter21Mon
22Tue5:506.18:103.91:000.37:205:23First Quarter22Tue
23Wed6:436.49:254.312:092.92:01-0.47:195:24Waxing Gibbous23Wed
24Thu7:406.710:214.71:193.12:56-0.97:185:25Waxing Gibbous24Thu
25Fri8:366.911:084.92:243.23:47-1.37:185:26Waxing Gibbous25Fri
26Sat9:317.011:515.13:233.04:35-1.57:175:27Full Moon26Sat
27Sun10:247.04:182.85:20-1.57:165:28Full Moon27Sun
28Mon12:315.211:14 AM6.85:112.56:02-1.37:155:29Full Moon28Mon
29Tue1:095.312:046.46:032.36:43-0.97:155:30Waning Gibbous29Tue
30Wed1:465.412:535.86:552.17:21-0.47:145:31Waning Gibbous30Wed
31Thu2:235.41:435.27:501.97:590.37:135:33Waning Gibbous31Thu
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 12:53 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 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