Tides Today & Tomorrow in Point San Quentin, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Point San Quentin, CA.
Next low tide : 10:59 pm (1.1 ft)
Next high tide : in 38m at 4:24 pm (5.7 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9414873
Common Questions About Tides

Point San Quentin, CA Tides - Sep 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:544.99:546.43:54-0.23:512.36:397:39Waning Crescent1Sat
2Sun11:355.210:536.54:44-0.44:461.86:407:38Waning Crescent2Sun
3Mon12:135.55:29-0.45:391.36:417:36New Moon3Mon
4Tue12:505.86:12-0.26:290.96:427:34New Moon4Tue
5Wed12:436.21:276.06:530.17:190.66:437:33New Moon5Wed
6Thu1:375.92:046.27:340.58:090.46:447:31Waxing Crescent6Thu
7Fri2:325.52:426.28:151.09:010.36:457:30Waxing Crescent7Fri
8Sat3:295.13:226.18:591.69:540.46:457:28Waxing Crescent8Sat
9Sun4:314.74:055.99:462.110:530.56:467:27Waxing Crescent9Sun
10Mon5:434.44:535.710:422.511:590.76:477:25First Quarter10Mon
11Tue7:064.25:495.411:542.86:487:24First Quarter11Tue
12Wed8:284.36:535.31:090.71:142.96:497:22First Quarter12Wed
13Thu9:314.47:595.22:150.72:252.86:507:21First Quarter13Thu
14Fri10:174.68:595.33:120.63:232.66:517:19Waxing Gibbous14Fri
15Sat10:534.89:525.33:580.64:102.36:517:18Waxing Gibbous15Sat
16Sun11:224.910:395.44:370.54:502.06:527:16Waxing Gibbous16Sun
17Mon11:485.011:235.45:110.65:271.76:537:14Waxing Gibbous17Mon
18Tue12:125.25:420.76:011.46:547:13Full Moon18Tue
19Wed12:055.412:375.46:110.86:341.16:557:11Full Moon19Wed
20Thu12:475.31:035.66:401.07:080.86:567:10Full Moon20Thu
21Fri1:305.11:315.77:101.37:440.66:577:08Full Moon21Fri
22Sat2:155.02:015.87:431.68:240.46:577:07Waning Gibbous22Sat
23Sun3:054.82:355.98:182.09:090.36:587:05Waning Gibbous23Sun
24Mon4:014.53:155.98:582.310:010.26:597:03Waning Gibbous24Mon
25Tue5:074.34:035.89:472.611:010.37:007:02Third Quarter25Tue
26Wed6:234.25:035.710:512.97:017:00Third Quarter26Wed
27Thu7:404.36:145.612:110.312:152.97:026:59Third Quarter27Thu
28Fri8:444.67:305.61:230.21:412.77:036:57Third Quarter28Fri
29Sat9:354.98:435.62:290.12:522.27:046:56Waning Crescent29Sat
30Sun9:185.38:505.72:250.12:511.66:045:54Waning Crescent30Sun
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 7:41 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 transitional phase. Tonight's moon is 28% 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 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 Waxing Crescent (28% illuminated). This places Point San Quentin, 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