Tides Today & Tomorrow in San Francisco, CA

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in San Francisco, CA.
Next low tide (tomorrow) : 6:45 am (-0.5 ft)
Next high tide : in 3h 54m at 11:57 pm (6.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:11 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9414290
Common Questions About Tides

San Francisco, CA Tides - Aug 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:483.87:325.92:100.81:083.46:128:19Waxing Gibbous1Sun
2Mon10:394.18:266.13:020.32:163.56:138:18Waxing Gibbous2Mon
3Tue11:174.49:186.43:48-0.13:113.46:148:17Waxing Gibbous3Tue
4Wed11:514.610:076.64:30-0.54:003.26:158:16Waxing Gibbous4Wed
5Thu12:234.85:10-0.84:472.96:168:15Full Moon5Thu
6Fri12:555.05:48-1.05:342.56:178:14Full Moon6Fri
7Sat1:275.36:27-1.06:242.16:188:13Full Moon7Sat
8Sun12:366.52:005.67:04-0.77:161.76:188:12Waning Gibbous8Sun
9Mon1:296.12:345.87:43-0.28:111.46:198:10Waning Gibbous9Mon
10Tue2:265.53:116.18:220.49:121.06:208:09Waning Gibbous10Tue
11Wed3:304.93:526.39:041.210:190.86:218:08Third Quarter11Wed
12Thu4:474.44:386.49:511.911:330.66:228:07Third Quarter12Thu
13Fri6:214.05:316.410:492.66:238:06Third Quarter13Fri
14Sat8:024.16:326.312:500.312:033.16:248:04Third Quarter14Sat
15Sun9:234.47:376.32:010.11:253.36:248:03Waning Crescent15Sun
16Mon10:214.78:396.33:03-0.22:363.26:258:02Waning Crescent16Mon
17Tue11:064.99:356.33:55-0.33:353.06:268:01Waning Crescent17Tue
18Wed11:455.010:246.34:40-0.44:252.86:277:59Waning Crescent18Wed
19Thu12:195.15:18-0.35:092.56:287:58New Moon19Thu
20Fri12:495.25:51-0.25:502.36:297:57New Moon20Fri
21Sat1:165.26:220.06:292.16:307:55New Moon21Sat
22Sun12:315.61:405.36:500.47:071.96:317:54New Moon22Sun
23Mon1:105.32:035.37:180.87:451.76:317:53Waxing Crescent23Mon
24Tue1:525.02:275.47:451.28:251.56:327:51Waxing Crescent24Tue
25Wed2:364.62:535.58:131.89:101.46:337:50Waxing Crescent25Wed
26Thu3:294.23:235.58:422.310:011.46:347:48Waxing Crescent26Thu
27Fri4:373.94:015.59:162.811:021.36:357:47First Quarter27Fri
28Sat6:123.74:505.510:013.26:367:46First Quarter28Sat
29Sun8:073.85:505.512:131.111:17 AM3.66:367:44First Quarter29Sun
30Mon9:204.16:565.71:230.812:513.66:377:43First Quarter30Mon
31Tue10:014.37:595.92:230.42:033.56:387:41Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414290)

Common Questions About San Francisco, CA Tides

Show All
What time does the tide turn (slack tide) in San Francisco, CA today?

Slack tide in San Francisco, CA is approximately 3:21 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 spring phase. Tonight's moon is 100% 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 (100% 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