Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 13m at 1:05 pm (0.9 ft)
Next high tide : 7:30 pm (14.6 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Nov 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:3815.29:4614.83:121.43:532.67:024:08Waxing Gibbous1Wed
2Thu10:2116.810:4415.84:040.94:450.47:044:06Waxing Gibbous2Thu
3Fri11:0218.311:3616.54:510.75:31-1.57:064:04Waxing Gibbous3Fri
4Sat11:4219.35:350.76:16-2.87:084:01Full Moon4Sat
5Sun12:2517.012:2119.96:171.06:59-3.67:113:59Full Moon5Sun
6Mon1:1217.01:0119.96:591.67:43-3.67:133:57Full Moon6Mon
7Tue1:5916.61:4219.37:412.48:27-3.07:153:55Waning Gibbous7Tue
8Wed2:4615.92:2418.38:243.49:13-1.97:173:53Waning Gibbous8Wed
9Thu3:3514.93:0916.99:104.410:02-0.57:193:51Waning Gibbous9Thu
10Fri4:2813.93:5915.310:015.510:570.97:223:49Third Quarter10Fri
11Sat5:2813.04:5813.811:066.37:243:47Third Quarter11Sat
12Sun6:3812.66:1412.612:002.112:306.67:263:45Third Quarter12Sun
13Mon7:4912.77:3912.01:092.82:016.17:283:43Third Quarter13Mon
14Tue8:4713.38:5412.12:153.23:115.07:303:41Waning Crescent14Tue
15Wed9:3114.19:5312.63:103.34:033.77:323:40Waning Crescent15Wed
16Thu10:0714.910:4113.23:563.34:442.47:343:38Waning Crescent16Thu
17Fri10:4015.711:2313.74:353.35:191.37:373:36Waning Crescent17Fri
18Sat11:1016.45:113.45:530.37:393:34Waning Crescent18Sat
19Sun12:0214.311:41 AM17.05:453.56:25-0.47:413:33New Moon19Sun
20Mon12:3914.612:1317.46:183.66:58-0.97:433:31New Moon20Mon
21Tue1:1614.812:4517.56:523.97:32-1.27:453:30New Moon21Tue
22Wed1:5414.81:2017.57:274.28:09-1.17:473:28Waxing Crescent22Wed
23Thu2:3314.61:5717.38:044.58:48-0.97:493:27Waxing Crescent23Thu
24Fri3:1514.22:3816.88:444.99:31-0.47:513:25Waxing Crescent24Fri
25Sat4:0213.83:2416.09:325.310:200.27:533:24Waxing Crescent25Sat
26Sun4:5613.54:2015.010:305.611:150.87:553:23First Quarter26Sun
27Mon5:5613.55:2914.011:435.67:563:22First Quarter27Mon
28Tue6:5914.06:4913.312:171.51:064.97:583:20First Quarter28Tue
29Wed7:5914.98:1213.21:222.02:243.58:003:19First Quarter29Wed
30Thu8:5316.19:2613.62:252.33:291.78:023:18Waxing Gibbous30Thu
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 4:17 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 neap phase. Tonight's moon is 49% 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 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 (49% illuminated). This places Petersburg, AK 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