Tides Today & Tomorrow in San Francisco, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in San Francisco, CA.
Next low tide : in 2h 25m at 6:37 pm (2.8 ft)
Next high tide (tomorrow) : 12:35 am (5.9 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 6:11 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9414290
Common Questions About Tides

San Francisco, CA Tides - Jan 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:086.211:514.63:133.44:25-0.57:255:01Full Moon1Wed
2Thu9:466.23:553.44:58-0.67:255:02Full Moon2Thu
3Fri12:264.710:23 AM6.24:333.45:31-0.67:255:03Full Moon3Fri
4Sat12:584.711:00 AM6.15:103.36:03-0.77:255:04Full Moon4Sat
5Sun1:284.711:37 AM6.05:473.26:34-0.67:255:05Waning Gibbous5Sun
6Mon1:584.712:145.86:263.17:06-0.57:255:06Waning Gibbous6Mon
7Tue2:294.812:545.47:103.07:39-0.27:255:07Waning Gibbous7Tue
8Wed3:004.91:405.08:012.88:140.27:255:07Waning Gibbous8Wed
9Thu3:325.12:354.59:012.58:520.77:255:08Third Quarter9Thu
10Fri4:075.33:484.010:092.09:351.47:255:09Third Quarter10Fri
11Sat4:455.65:283.611:211.410:252.17:255:10Third Quarter11Sat
12Sun5:285.97:193.712:290.77:245:11Third Quarter12Sun
13Mon6:166.28:504.01:310.07:245:12Waning Crescent13Mon
14Tue7:096.59:564.412:363.12:27-0.77:245:13Waning Crescent14Tue
15Wed8:046.810:474.71:443.33:20-1.27:245:14Waning Crescent15Wed
16Thu9:007.111:324.92:463.34:09-1.67:235:15New Moon16Thu
17Fri9:547.13:443.14:57-1.77:235:16New Moon17Fri
18Sat12:145.110:47 AM7.14:392.85:42-1.67:225:18New Moon18Sat
19Sun12:545.211:39 AM6.85:342.66:26-1.47:225:19New Moon19Sun
20Mon1:335.412:316.36:302.37:07-0.97:215:20Waxing Crescent20Mon
21Tue2:115.51:235.77:272.17:47-0.37:215:21Waxing Crescent21Tue
22Wed2:495.62:204.98:291.98:270.47:205:22Waxing Crescent22Wed
23Thu3:275.63:264.29:351.79:091.27:205:23First Quarter23Thu
24Fri4:075.74:513.710:461.49:572.07:195:24First Quarter24Fri
25Sat4:495.76:393.611:581.110:552.77:195:25First Quarter25Sat
26Sun5:345.78:213.81:030.77:185:26First Quarter26Sun
27Mon6:235.79:284.212:063.21:590.47:175:27Waxing Gibbous27Mon
28Tue7:145.710:164.41:163.42:470.17:165:28Waxing Gibbous28Tue
29Wed8:035.810:534.62:143.43:29-0.17:165:30Waxing Gibbous29Wed
30Thu8:485.911:244.63:023.34:05-0.37:155:31Waxing Gibbous30Thu
31Fri9:306.011:524.73:433.24:38-0.57:145:32Full Moon31Fri
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 9:36 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 spring phase. Tonight's moon is 99% 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 near their weekly maximum.

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 Full Moon (99% illuminated). This places San Francisco, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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