Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Petersburg, AK.
Next low tide (tomorrow) : in 6h 28m at 1:55 am (2.4 ft)
Next high tide (tomorrow) : 7:47 am (11.5 ft)
Sunset today : 9:42 pm
Sunrise tomorrow : 4:10 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Mar 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:5113.59:2612.01:496.23:022.45:434:24Waning Crescent1Sun
2Mon8:5614.510:1413.33:015.53:531.15:404:27Waning Crescent2Mon
3Tue9:5015.810:5414.63:564.34:36-0.25:384:29Waning Crescent3Tue
4Wed10:3817.011:3115.94:422.95:15-1.45:354:31New Moon4Wed
5Thu11:2218.05:241.55:52-2.25:324:33New Moon5Thu
6Fri12:0717.112:0518.66:060.26:29-2.65:304:35New Moon6Fri
7Sat12:4317.912:4818.86:47-0.87:07-2.55:274:38New Moon7Sat
8Sun1:2018.51:3218.37:30-1.37:46-1.85:244:40Waxing Crescent8Sun
9Mon1:5818.52:1817.38:15-1.48:26-0.65:224:42Waxing Crescent9Mon
10Tue2:3918.13:0815.99:04-0.99:100.95:194:44Waxing Crescent10Tue
11Wed3:2317.34:0414.39:59-0.19:592.65:164:46First Quarter11Wed
12Thu4:1516.25:1412.811:030.811:024.25:144:48First Quarter12Thu
13Fri5:2015.16:4212.112:211.55:114:50First Quarter13Fri
14Sat6:4214.48:1312.312:255.21:451.55:084:53Waxing Gibbous14Sat
15Sun8:0714.59:2313.31:595.32:581.05:064:55Waxing Gibbous15Sun
16Mon9:1615.110:1514.33:164.43:550.35:034:57Waxing Gibbous16Mon
17Tue10:1115.810:5715.24:123.34:41-0.45:004:59Waxing Gibbous17Tue
18Wed10:5616.411:3215.94:572.25:20-0.84:585:01Full Moon18Wed
19Thu11:3616.75:351.35:54-0.94:555:03Full Moon19Thu
20Fri12:0416.412:1216.76:100.66:26-0.74:525:05Full Moon20Fri
21Sat12:3316.712:4616.56:430.26:56-0.34:495:07Full Moon21Sat
22Sun1:0116.71:1916.07:150.17:250.44:475:10Waning Gibbous22Sun
23Mon1:2816.51:5215.37:470.27:541.24:445:12Waning Gibbous23Mon
24Tue1:5616.12:2614.48:190.68:242.24:415:14Waning Gibbous24Tue
25Wed2:2515.63:0313.48:541.28:563.44:395:16Waning Gibbous25Wed
26Thu2:5714.83:4612.39:341.99:334.54:365:18Third Quarter26Thu
27Fri3:3614.04:4411.310:242.710:225.54:335:20Third Quarter27Fri
28Sat4:2813.26:0410.711:323.211:366.24:305:22Third Quarter28Sat
29Sun5:4112.77:3511.012:563.24:285:24Third Quarter29Sun
30Mon7:0812.98:4412.11:126.12:132.44:255:26Waning Crescent30Mon
31Tue8:2313.89:3513.52:315.13:121.34:225:29Waning Crescent31Tue
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 4:51 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 neap phase. Tonight's moon is 50% 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 Third Quarter (50% 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