Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 7:06 pm (2.3 ft)
Next high tide : in 1h 53m at 1:21 pm (15.2 ft)
Sunset today : 8:41 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jun 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:5717.63:1114.98:44-2.78:552.92:077:31Waning Gibbous1Fri
2Sat2:5116.54:0514.79:36-1.89:583.12:067:32Third Quarter2Sat
3Sun3:5015.15:0214.610:30-0.611:093.12:057:33Third Quarter3Sun
4Mon4:5713.76:0214.611:290.52:047:35Third Quarter4Mon
5Tue6:1212.67:0114.912:242.712:301.62:037:36Third Quarter5Tue
6Wed7:3012.17:5615.31:361.91:322.52:027:37Waning Crescent6Wed
7Thu8:4312.28:4715.72:400.92:313.22:027:38Waning Crescent7Thu
8Fri9:4512.59:3416.03:35-0.13:253.62:017:40Waning Crescent8Fri
9Sat10:3813.010:1716.24:23-0.84:143.82:007:41Waning Crescent9Sat
10Sun11:2513.410:5816.35:06-1.34:593.92:007:42New Moon10Sun
11Mon12:0613.75:46-1.65:393.91:597:42New Moon11Mon
12Tue12:4413.86:23-1.66:183.91:597:43New Moon12Tue
13Wed12:1516.21:2013.87:00-1.56:553.91:587:44New Moon13Wed
14Thu12:5115.91:5613.77:36-1.27:324.01:587:45Waxing Crescent14Thu
15Fri1:2715.42:3113.58:11-0.88:114.11:587:46Waxing Crescent15Fri
16Sat2:0414.73:0813.48:47-0.38:524.21:577:46Waxing Crescent16Sat
17Sun2:4313.93:4613.29:230.49:384.31:577:47Waxing Crescent17Sun
18Mon3:2613.04:2613.210:021.210:314.31:577:47First Quarter18Mon
19Tue4:1712.05:1013.310:442.011:334.01:577:48First Quarter19Tue
20Wed5:2011.25:5813.611:322.81:577:48First Quarter20Wed
21Thu6:3310.86:5014.112:403.312:283.61:587:48First Quarter21Thu
22Fri7:5011.07:4514.91:472.31:304.11:587:48Waxing Gibbous22Fri
23Sat9:0111.68:3915.82:481.02:334.21:587:49Waxing Gibbous23Sat
24Sun10:0212.69:3316.83:43-0.43:324.01:587:49Waxing Gibbous24Sun
25Mon10:5613.610:2617.74:34-1.74:273.51:597:49Full Moon25Mon
26Tue11:4614.511:1818.55:23-2.95:202.91:597:49Full Moon26Tue
27Wed12:3415.36:10-3.76:102.32:007:48Full Moon27Wed
28Thu12:0918.91:2015.96:56-4.17:011.82:017:48Waning Gibbous28Thu
29Fri12:5918.72:0516.27:42-3.97:521.52:017:48Waning Gibbous29Fri
30Sat1:4918.02:5116.38:27-3.38:461.42:027:47Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451439)

Common Questions About Petersburg, AK Tides

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What time does the tide turn (slack tide) in Petersburg, AK today?

Slack tide in Petersburg, AK is approximately 4:13 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 Petersburg, AK?

Petersburg, AK is currently in a spring phase. Tonight's moon is 1% 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 Petersburg, AK 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 Petersburg, AK?

Tide predictions for Petersburg, AK 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 Petersburg, AK?

Tide data for Petersburg, AK is sourced from NOAA Station #9451439. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9451439.

What is the moon phase in Petersburg, AK tonight?

Tonight the moon over Petersburg, AK is New Moon (1% illuminated). This places Petersburg, AK 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