Tides Today & Tomorrow in Point San Quentin, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Point San Quentin, CA.
Next low tide : in 1h 03m at 1:13 am (0.9 ft)
Next high tide : 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 - May 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:134.58:244.212:223.012:400.36:138:00First Quarter1Thu
2Fri6:234.29:014.41:382.71:360.46:128:01First Quarter2Fri
3Sat7:384.09:304.62:392.32:260.66:108:02First Quarter3Sat
4Sun8:503.99:564.93:291.83:080.86:098:03Waxing Gibbous4Sun
5Mon9:554.010:215.24:111.23:461.06:088:04Waxing Gibbous5Mon
6Tue10:554.110:485.54:490.74:221.36:078:05Waxing Gibbous6Tue
7Wed11:504.211:165.75:240.14:581.76:068:06Waxing Gibbous7Wed
8Thu12:444.36:00-0.45:342.06:058:06Full Moon8Thu
9Fri1:374.46:38-0.86:132.36:048:07Full Moon9Fri
10Sat12:206.22:304.57:19-1.16:542.66:038:08Full Moon10Sat
11Sun12:596.33:244.58:04-1.37:392.86:028:09Waning Gibbous11Sun
12Mon1:426.24:194.48:52-1.48:312.96:018:10Waning Gibbous12Mon
13Tue2:316.15:174.49:45-1.29:342.96:008:11Waning Gibbous13Tue
14Wed3:275.86:144.510:41-1.010:522.96:008:12Waning Gibbous14Wed
15Thu4:315.37:094.711:41-0.75:598:13Third Quarter15Thu
16Fri5:454.97:585.012:212.612:40-0.45:588:14Third Quarter16Fri
17Sat7:084.58:415.31:442.01:380.15:578:14Third Quarter17Sat
18Sun8:324.29:215.62:531.32:310.55:568:15Waning Crescent18Sun
19Mon9:514.19:585.93:510.63:201.05:558:16Waning Crescent19Mon
20Tue11:024.210:346.24:410.04:071.55:558:17Waning Crescent20Tue
21Wed12:064.35:27-0.54:521.95:548:18Waning Crescent21Wed
22Thu1:034.46:09-0.85:362.35:538:19New Moon22Thu
23Fri1:564.56:49-1.06:212.65:538:19New Moon23Fri
24Sat12:186.12:454.57:28-1.07:052.85:528:20New Moon24Sat
25Sun12:546.03:334.58:06-0.97:503.05:528:21Waxing Crescent25Sun
26Mon1:315.84:184.48:46-0.88:373.05:518:22Waxing Crescent26Mon
27Tue2:105.55:034.49:26-0.69:293.05:508:22Waxing Crescent27Tue
28Wed2:525.25:474.310:08-0.410:293.05:508:23Waxing Crescent28Wed
29Thu3:384.86:294.410:52-0.111:382.85:508:24Waxing Crescent29Thu
30Fri4:314.47:074.511:370.25:498:25First Quarter30Fri
31Sat5:344.07:424.712:502.612:230.65:498:25First Quarter31Sat
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 4:53 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