Tides Today & Tomorrow in Petaluma River entrance, CA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Petaluma River entrance, CA.
Next low tide : in 3h 53m at 1:14 pm (2.4 ft)
Next high tide : 7:18 pm (6.6 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9415252
Common Questions About Tides

Petaluma River entrance, CA Tides - Sep 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:065.72:585.69:010.69:211.56:407:39Full Moon1Tue
2Wed2:465.43:205.79:270.99:571.36:417:37Waning Gibbous2Wed
3Thu3:285.13:435.89:541.310:371.26:427:36Waning Gibbous3Thu
4Fri4:164.74:105.810:221.811:211.16:437:34Waning Gibbous4Fri
5Sat5:154.34:435.910:522.26:437:33Waning Gibbous5Sat
6Sun6:344.15:245.812:141.011:30 AM2.76:447:31Third Quarter6Sun
7Mon8:234.06:185.81:190.912:273.06:457:30Third Quarter7Mon
8Tue10:024.37:255.92:330.72:013.26:467:28Third Quarter8Tue
9Wed10:554.68:366.13:440.43:293.16:477:27Waning Crescent9Wed
10Thu11:324.89:426.44:430.04:342.86:487:25Waning Crescent10Thu
11Fri12:055.15:33-0.35:272.46:487:23Waning Crescent11Fri
12Sat12:365.46:17-0.56:161.96:497:22Waning Crescent12Sat
13Sun1:065.76:58-0.57:051.46:507:20New Moon13Sun
14Mon12:346.81:386.17:38-0.37:540.86:517:19New Moon14Mon
15Tue1:306.62:116.48:160.18:440.46:527:17New Moon15Tue
16Wed2:266.22:456.78:550.69:360.06:537:16Waxing Crescent16Wed
17Thu3:265.83:226.99:361.210:30-0.16:547:14Waxing Crescent17Thu
18Fri4:315.34:026.810:191.811:29-0.16:547:12Waxing Crescent18Fri
19Sat5:454.94:496.711:092.46:557:11First Quarter19Sat
20Sun7:134.75:446.412:350.012:142.86:567:09First Quarter20Sun
21Mon8:454.76:516.11:480.11:443.06:577:08First Quarter21Mon
22Tue9:595.08:065.93:040.23:143.06:587:06First Quarter22Tue
23Wed10:525.29:175.84:110.24:252.76:597:05Waxing Gibbous23Wed
24Thu11:325.310:185.85:060.25:192.37:007:03Waxing Gibbous24Thu
25Fri12:065.45:500.26:042.07:017:01Waxing Gibbous25Fri
26Sat12:345.56:270.36:431.77:017:00Waxing Gibbous26Sat
27Sun12:585.66:580.47:181.47:026:58Full Moon27Sun
28Mon12:395.61:195.77:270.77:521.17:036:57Full Moon28Mon
29Tue1:215.41:385.87:531.08:230.87:046:55Full Moon29Tue
30Wed2:025.21:595.98:191.38:550.67:056:54Full Moon30Wed
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 4:16 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 neap phase. Tonight's moon is 42% 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 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 Third Quarter (42% illuminated). This places Petaluma River entrance, 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