Tides Today & Tomorrow in Point San Quentin, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Point San Quentin, CA.
Next low tide : 12:31 pm (3.1 ft)
Next high tide : in 1h 45m at 8:33 am (3.9 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:29 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9414873
Common Questions About Tides

Point San Quentin, CA Tides - Jul 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:494.45:36-0.34:543.15:508:36Waning Crescent1Sun
2Mon1:324.56:13-0.55:383.15:518:36New Moon2Mon
3Tue2:094.56:47-0.56:193.15:518:36New Moon3Tue
4Wed12:016.02:424.67:21-0.66:573.15:528:35New Moon4Wed
5Thu12:396.03:134.67:53-0.67:363.05:528:35New Moon5Thu
6Fri1:165.93:434.68:25-0.68:162.95:538:35Waxing Crescent6Fri
7Sat1:545.64:134.78:57-0.59:002.85:538:35Waxing Crescent7Sat
8Sun2:345.34:434.89:29-0.39:512.65:548:35Waxing Crescent8Sun
9Mon3:184.95:145.010:030.110:482.45:558:34Waxing Crescent9Mon
10Tue4:114.55:475.310:400.611:532.05:558:34First Quarter10Tue
11Wed5:194.06:235.511:201.15:568:34First Quarter11Wed
12Thu6:483.67:035.81:011.512:071.75:578:33First Quarter12Thu
13Fri8:333.67:486.22:060.81:032.35:578:33First Quarter13Fri
14Sat10:093.88:386.53:070.22:072.75:588:32Waxing Gibbous14Sat
15Sun11:214.29:326.84:03-0.43:133.05:598:32Waxing Gibbous15Sun
16Mon12:174.54:57-1.04:163.05:598:31Waxing Gibbous16Mon
17Tue1:054.75:48-1.35:162.96:008:31Full Moon17Tue
18Wed1:484.96:37-1.56:132.76:018:30Full Moon18Wed
19Thu12:177.12:295.17:24-1.57:102.56:018:30Full Moon19Thu
20Fri1:116.93:095.28:09-1.38:082.36:028:29Waning Gibbous20Fri
21Sat2:046.43:495.48:52-0.99:082.06:038:28Waning Gibbous21Sat
22Sun2:585.84:285.69:34-0.410:111.86:048:28Waning Gibbous22Sun
23Mon3:565.15:075.710:150.311:191.66:058:27Waning Gibbous23Mon
24Tue5:034.45:475.810:581.06:058:26Third Quarter24Tue
25Wed6:243.96:305.812:301.311:46 AM1.86:068:25Third Quarter25Wed
26Thu8:043.77:155.81:401.012:422.46:078:25Third Quarter26Thu
27Fri9:443.88:035.82:450.71:482.96:088:24Third Quarter27Fri
28Sat10:574.18:525.93:420.42:553.16:098:23Waning Crescent28Sat
29Sun11:494.49:405.94:310.23:533.26:098:22Waning Crescent29Sun
30Mon12:294.55:140.04:433.26:108:21Waning Crescent30Mon
31Tue1:034.65:52-0.25:253.16:118:20Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414873)

Common Questions About Point San Quentin, CA Tides

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

Slack tide in Point San Quentin, CA is approximately 10:32 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 Point San Quentin, CA?

Point San Quentin, CA is currently in a neap phase. Tonight's moon is 56% 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 minimum.

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 First Quarter (56% illuminated). This places Point San Quentin, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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