Tides Today & Tomorrow in Petaluma River entrance, CA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Petaluma River entrance, CA.
Next low tide : 10:08 pm (1.9 ft)
Next high tide : in 52m at 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 - Nov 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:375.612:266.96:401.17:32-0.47:366:10New Moon1Tue
2Wed1:315.61:046.97:241.48:15-0.57:386:08New Moon2Wed
3Thu2:245.51:416.88:081.78:58-0.67:396:07New Moon3Thu
4Fri3:155.42:196.68:532.09:40-0.57:406:06Waxing Crescent4Fri
5Sat4:065.32:586.39:402.310:24-0.37:416:05Waxing Crescent5Sat
6Sun3:585.12:395.99:312.510:09-0.16:425:04Waxing Crescent6Sun
7Mon4:525.03:245.510:312.610:580.26:435:03Waxing Crescent7Mon
8Tue5:485.04:175.111:422.711:520.46:445:03First Quarter8Tue
9Wed6:445.05:204.712:592.56:455:02First Quarter9Wed
10Thu7:335.16:334.512:490.72:082.36:465:01First Quarter10Thu
11Fri8:165.37:474.41:460.93:051.96:475:00First Quarter11Fri
12Sat8:525.58:554.42:381.03:521.56:484:59Waxing Gibbous12Sat
13Sun9:245.79:544.63:241.24:331.06:494:58Waxing Gibbous13Sun
14Mon9:566.010:484.74:061.35:090.66:504:58Waxing Gibbous14Mon
15Tue10:276.311:374.94:451.55:440.26:514:57Waxing Gibbous15Tue
16Wed11:006.55:231.76:19-0.16:534:56Full Moon16Wed
17Thu12:255.111:34 AM6.76:011.96:55-0.46:544:56Full Moon17Thu
18Fri1:125.212:116.86:412.07:34-0.76:554:55Full Moon18Fri
19Sat1:595.212:516.87:232.28:16-0.86:564:54Full Moon19Sat
20Sun2:485.31:346.78:102.39:01-0.86:574:54Waning Gibbous20Sun
21Mon3:395.32:226.59:022.49:50-0.76:584:53Waning Gibbous21Mon
22Tue4:325.33:176.110:042.410:43-0.46:594:53Waning Gibbous22Tue
23Wed5:275.44:215.611:182.311:41-0.17:004:52Third Quarter23Wed
24Thu6:235.65:365.212:402.17:014:52Third Quarter24Thu
25Fri7:165.96:594.812:420.21:591.67:024:51Third Quarter25Fri
26Sat8:066.28:224.71:440.63:061.17:034:51Waning Crescent26Sat
27Sun8:536.59:374.82:430.94:040.57:044:51Waning Crescent27Sun
28Mon9:376.810:435.03:381.24:540.07:054:51Waning Crescent28Mon
29Tue10:186.911:415.14:301.55:40-0.37:064:50Waning Crescent29Tue
30Wed10:577.05:181.86:23-0.67:074:50New 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 7:08 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