Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 11:25 am (-2.0 ft)
Next high tide : in 5h 06m at 4:46 am (16.5 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Oct 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:5211.57:3213.51:212.31:206.26:556:26Third Quarter1Fri
2Sat9:1712.29:0613.82:442.13:025.76:586:24Third Quarter2Sat
3Sun10:2213.510:2214.83:581.44:234.17:006:21Waning Crescent3Sun
4Mon11:1315.211:2416.04:560.55:232.17:026:18Waning Crescent4Mon
5Tue11:5716.95:46-0.36:140.17:046:16Waning Crescent5Tue
6Wed12:1717.012:3718.36:30-0.87:00-1.67:066:13New Moon6Wed
7Thu1:0717.71:1719.47:13-0.97:44-2.87:086:10New Moon7Thu
8Fri1:5417.91:5719.97:54-0.58:27-3.37:106:08New Moon8Fri
9Sat2:4017.72:3619.88:340.29:11-3.17:126:05Waxing Crescent9Sat
10Sun3:2616.93:1619.19:151.29:55-2.37:146:02Waxing Crescent10Sun
11Mon4:1215.83:5817.99:582.510:41-1.17:166:00Waxing Crescent11Mon
12Tue5:0214.54:4216.410:443.911:330.47:185:57Waxing Crescent12Tue
13Wed5:5913.35:3414.811:375.17:215:54First Quarter13Wed
14Thu7:0912.36:4013.312:341.812:486.17:235:52First Quarter14Thu
15Fri8:3112.08:0512.51:482.82:196.37:255:49First Quarter15Fri
16Sat9:4512.59:3012.43:073.23:455.67:275:47First Quarter16Sat
17Sun10:3813.310:3612.94:123.04:474.57:295:44Waxing Gibbous17Sun
18Mon11:1814.211:2613.65:022.75:333.27:315:42Waxing Gibbous18Mon
19Tue11:5115.05:412.46:111.97:335:39Waxing Gibbous19Tue
20Wed12:0814.212:2115.96:152.26:450.87:365:37Waxing Gibbous20Wed
21Thu12:4514.812:5016.56:462.27:18-0.17:385:34Full Moon21Thu
22Fri1:2115.21:1817.07:172.27:49-0.77:405:32Full Moon22Fri
23Sat1:5615.41:4717.37:472.48:22-1.17:425:29Full Moon23Sat
24Sun2:3115.52:1717.48:182.88:55-1.17:445:27Full Moon24Sun
25Mon3:0715.22:4917.38:503.29:31-0.97:465:24Waning Gibbous25Mon
26Tue3:4614.73:2416.99:243.810:11-0.57:495:22Waning Gibbous26Tue
27Wed4:2914.14:0416.210:044.410:570.17:515:20Waning Gibbous27Wed
28Thu5:1913.44:5315.310:525.111:510.97:535:17Third Quarter28Thu
29Fri6:1913.05:5514.311:555.67:555:15Third Quarter29Fri
30Sat7:3013.07:1713.612:561.51:185.77:575:13Third Quarter30Sat
31Sun8:4113.68:4513.52:081.82:494.88:005:10Third Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451439)

Common Questions About Petersburg, AK Tides

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

Slack tide in Petersburg, AK is approximately 8:05 am — 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 19% 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 Waxing Crescent (19% 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