Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 5h 44m at 12:14 pm (-0.6 ft)
Next high tide : 6:38 pm (14.9 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Dec 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:1814.02:3915.88:505.19:280.48:043:17Waxing Crescent1Mon
2Tue3:5713.63:1815.09:315.410:061.08:063:16Waxing Crescent2Tue
3Wed4:3913.34:0214.110:185.710:481.68:083:15Waxing Crescent3Wed
4Thu5:2513.24:5513.111:165.711:352.38:093:14First Quarter4Thu
5Fri6:1613.46:0112.312:255.48:113:14First Quarter5Fri
6Sat7:0913.97:1812.012:283.01:374.68:123:13First Quarter6Sat
7Sun8:0114.78:3512.21:283.52:453.28:143:13Waxing Gibbous7Sun
8Mon8:5315.89:4512.92:293.93:441.68:153:12Waxing Gibbous8Mon
9Tue9:4217.010:4613.93:284.04:36-0.18:163:12Waxing Gibbous9Tue
10Wed10:3218.111:4114.84:243.95:26-1.68:183:11Waxing Gibbous10Wed
11Thu11:2119.15:173.66:14-2.88:193:11Full Moon11Thu
12Fri12:3215.712:1019.76:083.37:01-3.68:203:11Full Moon12Fri
13Sat1:2116.21:0020.06:583.07:49-3.88:213:11Full Moon13Sat
14Sun2:1016.51:5019.77:482.98:36-3.58:223:11Waning Gibbous14Sun
15Mon2:5716.52:4018.98:392.99:23-2.88:233:11Waning Gibbous15Mon
16Tue3:4616.43:3217.59:333.110:11-1.68:243:11Waning Gibbous16Tue
17Wed4:3516.04:2715.910:323.411:01-0.28:243:11Third Quarter17Wed
18Thu5:2715.75:2814.211:373.611:541.48:253:11Third Quarter18Thu
19Fri6:2115.46:4012.712:503.68:263:12Third Quarter19Fri
20Sat7:1815.28:0011.912:502.82:053.38:263:12Third Quarter20Sat
21Sun8:1515.29:2011.81:514.13:142.68:273:13Waning Crescent21Sun
22Mon9:0915.310:2812.22:544.94:131.88:273:13Waning Crescent22Mon
23Tue9:5915.611:2212.83:545.35:021.08:283:14Waning Crescent23Tue
24Wed10:4415.94:475.45:440.48:283:15Waning Crescent24Wed
25Thu12:0713.411:26 AM16.35:335.36:22-0.18:283:15New Moon25Thu
26Fri12:4613.912:0516.66:145.06:58-0.58:283:16New Moon26Fri
27Sat1:2114.312:4216.86:514.77:31-0.78:283:17New Moon27Sat
28Sun1:5414.61:1816.97:274.58:04-0.88:283:18New Moon28Sun
29Mon2:2714.81:5316.88:034.38:35-0.88:283:19Waxing Crescent29Mon
30Tue2:5914.82:2716.48:394.19:07-0.58:283:20Waxing Crescent30Tue
31Wed3:3114.83:0315.79:164.19:360.18:283:21Waxing Crescent31Wed
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 3:26 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 transitional phase. Tonight's moon is 39% 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 shifting between spring and neap.

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 First Quarter (39% illuminated). This places Petersburg, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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