Tides Today & Tomorrow in Point San Quentin, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Point San Quentin, CA.
Next low tide : in 3h 48m at 5:37 pm (2.4 ft)
Next high tide : 11:39 pm (6.9 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9414873
Common Questions About Tides

Point San Quentin, CA Tides - Apr 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:075.510:084.92:252.53:05-0.65:556:32Waxing Gibbous1Fri
2Sat9:135.710:425.23:211.83:52-0.65:536:33Waxing Gibbous2Sat
3Sun10:135.711:155.54:121.24:35-0.55:526:34Waxing Gibbous3Sun
4Mon11:115.611:485.85:010.65:16-0.15:506:35Full Moon4Mon
5Tue12:075.55:480.05:560.35:496:36Full Moon5Tue
6Wed12:226.01:035.26:36-0.46:360.95:476:37Full Moon6Wed
7Thu12:566.12:014.87:24-0.67:171.55:466:38Waning Gibbous7Thu
8Fri1:316.03:034.58:13-0.68:012.15:446:39Waning Gibbous8Fri
9Sat2:095.84:134.39:05-0.58:532.65:436:39Waning Gibbous9Sat
10Sun2:515.55:334.110:02-0.210:003.05:416:40Third Quarter10Sun
11Mon3:415.26:584.211:070.011:313.15:406:41Third Quarter11Mon
12Tue4:434.88:064.312:170.25:386:42Third Quarter12Tue
13Wed5:564.68:544.512:572.91:220.25:376:43Third Quarter13Wed
14Thu7:104.59:304.62:032.62:170.25:356:44Waning Crescent14Thu
15Fri8:154.59:594.72:542.23:020.35:346:45Waning Crescent15Fri
16Sat9:114.610:234.83:361.83:390.35:336:46Waning Crescent16Sat
17Sun10:004.610:455.04:131.44:120.55:316:47Waning Crescent17Sun
18Mon10:464.611:075.24:471.04:410.75:306:48Waning Crescent18Mon
19Tue11:314.611:305.45:190.65:101.05:286:49New Moon19Tue
20Wed12:164.55:510.25:391.45:276:50New Moon20Wed
21Thu1:024.46:24-0.16:101.75:266:50New Moon21Thu
22Fri12:205.61:524.36:59-0.36:432.15:246:51Waxing Crescent22Fri
23Sat12:495.72:474.27:39-0.57:192.55:236:52Waxing Crescent23Sat
24Sun2:235.74:494.19:24-0.69:032.86:227:53Waxing Crescent24Sun
25Mon3:045.65:594.110:16-0.69:593.16:217:54Waxing Crescent25Mon
26Tue3:555.47:134.111:18-0.511:193.26:197:55First Quarter26Tue
27Wed4:595.28:174.312:26-0.56:187:56First Quarter27Wed
28Thu6:175.09:064.612:553.01:34-0.46:177:57First Quarter28Thu
29Fri7:404.99:474.92:162.52:35-0.36:167:58First Quarter29Fri
30Sat8:584.910:235.33:201.83:28-0.26:147:59Waxing Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414873)

Common Questions About Point San Quentin, CA Tides

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What time does the tide turn (slack tide) in Point San Quentin, CA today?

Slack tide in Point San Quentin, CA is approximately 8:38 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 Point San Quentin, CA?

Point San Quentin, CA is currently in a spring phase. Tonight's moon is 1% 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 Point San Quentin, 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 Point San Quentin, CA?

Tide predictions for Point San Quentin, 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 Point San Quentin, CA?

Tide data for Point San Quentin, CA is sourced from NOAA Station #9414873. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414873.

What is the moon phase in Point San Quentin, CA tonight?

Tonight the moon over Point San Quentin, CA is New Moon (1% illuminated). This places Point San Quentin, 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