Tides Today & Tomorrow in Petaluma River entrance, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Petaluma River entrance, CA.
Next low tide : in 3h 57m at 9:25 pm (2.2 ft)
Next high tide (tomorrow) : 2:38 am (6.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9415252
Common Questions About Tides

Petaluma River entrance, CA Tides - Feb 2088

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:136.59:254.41:162.13:030.27:145:32First Quarter1Sun
2Mon8:156.710:294.82:322.34:05-0.27:135:34Waxing Gibbous2Mon
3Tue9:166.911:205.13:422.24:58-0.67:125:35Waxing Gibbous3Tue
4Wed10:127.14:442.15:46-0.87:115:36Waxing Gibbous4Wed
5Thu12:045.511:06 AM7.15:391.96:31-0.87:105:37Full Moon5Thu
6Fri12:455.711:57 AM7.06:311.67:12-0.87:095:38Full Moon6Fri
7Sat1:245.912:466.77:211.47:52-0.57:085:39Full Moon7Sat
8Sun2:016.01:346.38:091.28:31-0.27:075:40Waning Gibbous8Sun
9Mon2:376.02:225.88:581.19:090.27:065:41Waning Gibbous9Mon
10Tue3:136.03:115.29:481.19:470.77:055:42Waning Gibbous10Tue
11Wed3:496.04:064.710:401.110:271.27:045:44Waning Gibbous11Wed
12Thu4:285.85:114.211:391.111:131.77:025:45Third Quarter12Thu
13Fri5:105.76:353.912:441.17:015:46Third Quarter13Fri
14Sat5:595.68:133.912:102.21:541.07:005:47Third Quarter14Sat
15Sun6:555.69:324.11:232.42:590.86:595:48Third Quarter15Sun
16Mon7:535.710:244.42:372.53:530.56:585:49Waning Crescent16Mon
17Tue8:485.811:034.63:392.54:390.36:565:50Waning Crescent17Tue
18Wed9:385.911:344.84:292.35:180.16:555:51Waning Crescent18Wed
19Thu10:246.15:122.15:52-0.16:545:52Waning Crescent19Thu
20Fri12:035.011:07 AM6.25:501.96:24-0.26:535:53New Moon20Fri
21Sat12:315.211:49 AM6.26:271.76:56-0.26:515:54New Moon21Sat
22Sun1:005.512:326.17:031.47:28-0.16:505:56New Moon22Sun
23Mon1:295.71:156.07:421.18:010.16:495:57New Moon23Mon
24Tue2:005.92:025.78:240.98:370.46:475:58Waxing Crescent24Tue
25Wed2:346.12:535.39:100.79:150.86:465:59Waxing Crescent25Wed
26Thu3:116.23:524.910:020.59:571.26:456:00Waxing Crescent26Thu
27Fri3:536.35:034.511:010.410:481.76:436:01First Quarter27Fri
28Sat4:426.36:284.212:100.36:426:02First Quarter28Sat
29Sun5:426.27:584.31:270.26:416:03First Quarter29Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415252)

Common Questions About Petaluma River entrance, CA Tides

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What time does the tide turn (slack tide) in Petaluma River entrance, CA today?

Slack tide in Petaluma River entrance, CA is approximately 12:01 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 Petaluma River entrance, CA?

Petaluma River entrance, CA is currently in a spring phase. Tonight's moon is 95% 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 Petaluma River entrance, 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 Petaluma River entrance, CA?

Tide predictions for Petaluma River entrance, 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 Petaluma River entrance, CA?

Tide data for Petaluma River entrance, CA is sourced from NOAA Station #9415252. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415252.

What is the moon phase in Petaluma River entrance, CA tonight?

Tonight the moon over Petaluma River entrance, CA is Waning Gibbous (95% illuminated). This places Petaluma River entrance, 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