Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 8:15 pm (3.0 ft)
Next high tide : in 30m at 2:34 pm (14.3 ft)
Sunset today : 9:09 pm
Sunrise tomorrow : 4:46 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Oct 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:4516.310:0316.73:32-0.14:000.94:564:26Waning Crescent1Mon
2Tue10:2817.610:5317.44:19-0.64:47-0.74:584:23New Moon2Tue
3Wed11:0818.611:3917.75:02-0.85:31-1.85:004:21New Moon3Wed
4Thu11:4619.15:42-0.66:12-2.45:024:18New Moon4Thu
5Fri12:2317.512:2419.16:21-0.16:53-2.45:044:15New Moon5Fri
6Sat1:0517.01:0018.66:590.87:33-1.95:064:13Waxing Crescent6Sat
7Sun1:4716.11:3717.77:371.98:13-0.95:084:10Waxing Crescent7Sun
8Mon2:3014.92:1516.58:173.18:560.35:104:07Waxing Crescent8Mon
9Tue3:1613.72:5615.18:594.49:451.65:124:05First Quarter9Tue
10Wed4:1012.63:4513.89:515.510:442.75:144:02First Quarter10Wed
11Thu5:1811.84:5012.611:006.311:573.55:173:59First Quarter11Thu
12Fri6:3811.76:1412.112:316.35:193:57First Quarter12Fri
13Sat7:4912.27:3512.31:143.61:525.65:213:54Waxing Gibbous13Sat
14Sun8:4013.18:3813.02:173.32:514.45:233:52Waxing Gibbous14Sun
15Mon9:1914.19:2713.83:052.83:353.15:253:49Waxing Gibbous15Mon
16Tue9:5315.210:0914.63:442.34:131.75:273:47Waxing Gibbous16Tue
17Wed10:2516.210:4815.44:181.94:480.55:293:44Full Moon17Wed
18Thu10:5617.011:2615.94:511.65:23-0.65:313:41Full Moon18Thu
19Fri11:2717.75:241.55:57-1.45:343:39Full Moon19Fri
20Sat12:0416.212:0018.15:581.66:33-1.85:363:36Full Moon20Sat
21Sun12:4316.212:3518.36:331.97:11-1.95:383:34Waning Gibbous21Sun
22Mon1:2415.91:1218.07:102.47:53-1.65:403:31Waning Gibbous22Mon
23Tue2:0815.41:5417.47:513.18:39-1.05:423:29Waning Gibbous23Tue
24Wed2:5814.62:4216.58:393.99:32-0.15:453:27Waning Gibbous24Wed
25Thu3:5513.93:4115.39:384.610:350.85:473:24Third Quarter25Thu
26Fri5:0413.54:5614.210:545.111:471.45:493:22Third Quarter26Fri
27Sat6:1813.86:2413.812:244.85:513:19Third Quarter27Sat
28Sun7:2814.67:4614.01:001.61:473.65:533:17Waning Crescent28Sun
29Mon8:2615.88:5414.72:061.52:531.95:553:15Waning Crescent29Mon
30Tue9:1617.09:5115.53:031.33:460.35:583:12Waning Crescent30Tue
31Wed10:0017.910:4216.13:521.24:33-1.06:003:10New Moon31Wed
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 5:24 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 100% 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 Full Moon (100% 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