Tides Today & Tomorrow in Petaluma River entrance, CA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Petaluma River entrance, CA.
Next low tide : in 3h 41m at 9:52 am (-0.1 ft)
Next high tide : 4:09 pm (5.5 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9415252
Common Questions About Tides

Petaluma River entrance, CA Tides - Feb 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:216.26:094.312:381.07:135:33Third Quarter1Tue
2Wed6:136.17:424.112:111.61:510.97:125:34Third Quarter2Wed
3Thu7:086.09:104.21:182.02:580.77:115:35Third Quarter3Thu
4Fri8:036.010:164.52:302.33:560.47:105:37Waning Crescent4Fri
5Sat8:566.011:054.73:342.44:450.27:095:38Waning Crescent5Sat
6Sun9:446.111:444.94:282.35:260.17:085:39Waning Crescent6Sun
7Mon10:276.25:142.36:020.07:075:40Waning Crescent7Mon
8Tue12:175.011:07 AM6.25:552.16:34-0.17:065:41New Moon8Tue
9Wed12:475.111:45 AM6.26:312.07:04-0.17:055:42New Moon9Wed
10Thu1:145.212:236.17:061.97:33-0.17:045:43New Moon10Thu
11Fri1:405.31:005.97:391.78:020.07:035:44New Moon11Fri
12Sat2:075.51:385.78:141.58:310.27:025:46Waxing Crescent12Sat
13Sun2:365.62:195.48:521.49:030.57:005:47Waxing Crescent13Sun
14Mon3:065.73:045.09:351.39:380.86:595:48Waxing Crescent14Mon
15Tue3:405.83:584.610:241.110:171.26:585:49Waxing Crescent15Tue
16Wed4:205.95:084.211:221.011:041.76:575:50First Quarter16Wed
17Thu5:066.06:374.012:300.86:565:51First Quarter17Thu
18Fri6:036.08:104.112:052.01:440.56:545:52First Quarter18Fri
19Sat7:066.29:254.41:212.32:540.26:535:53First Quarter19Sat
20Sun8:126.410:224.82:392.33:55-0.26:525:54Waxing Gibbous20Sun
21Mon9:166.611:095.23:472.14:49-0.56:505:55Waxing Gibbous21Mon
22Tue10:146.811:515.64:471.85:37-0.76:495:56Waxing Gibbous22Tue
23Wed11:106.95:411.46:22-0.76:485:57Full Moon23Wed
24Thu12:315.912:036.86:321.17:05-0.66:465:58Full Moon24Thu
25Fri1:096.112:556.67:220.87:47-0.36:455:59Full Moon25Fri
26Sat1:476.31:476.28:120.68:280.06:446:00Waning Gibbous26Sat
27Sun2:266.32:395.79:020.59:090.56:426:02Waning Gibbous27Sun
28Mon3:046.33:355.29:540.59:531.06:416:03Waning Gibbous28Mon
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 1:00 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 Petaluma River entrance, CA?

Petaluma River entrance, CA is currently in a spring phase. Tonight's moon is 90% 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 (90% 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