Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 4h 56m at 11:54 pm (3.1 ft)
Next high tide (tomorrow) : 5:40 am (13.3 ft)
Sunset today : 9:44 pm
Sunrise tomorrow : 4:08 am
Moon phase : Waning Gibbous (70% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Oct 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:5512.66:3114.412:270.812:305.56:566:25First Quarter1Mon
2Tue8:2511.97:5313.31:432.01:576.46:586:23First Quarter2Tue
3Wed9:5612.29:2713.03:112.53:386.37:006:20First Quarter3Wed
4Thu11:0213.010:4213.64:292.34:545.37:026:17Waxing Gibbous4Thu
5Fri11:4813.911:3614.35:251.75:454.17:046:15Waxing Gibbous5Fri
6Sat12:2314.86:071.26:252.97:066:12Waxing Gibbous6Sat
7Sun12:1815.012:5315.56:420.87:001.87:096:09Waxing Gibbous7Sun
8Mon12:5515.51:2016.17:120.77:310.87:116:07Full Moon8Mon
9Tue1:2915.81:4616.67:400.78:010.17:136:04Full Moon9Tue
10Wed2:0116.02:1116.88:061.08:31-0.37:156:01Full Moon10Wed
11Thu2:3415.82:3616.98:331.49:01-0.47:175:59Full Moon11Thu
12Fri3:0615.53:0116.89:002.19:33-0.37:195:56Waning Gibbous12Fri
13Sat3:4014.93:2816.49:283.010:070.17:215:54Waning Gibbous13Sat
14Sun4:1714.13:5915.99:583.910:450.87:235:51Waning Gibbous14Sun
15Mon5:0013.24:3515.110:344.911:331.57:255:48Waning Gibbous15Mon
16Tue5:5512.25:2314.211:205.97:285:46Third Quarter16Tue
17Wed7:0911.66:3513.412:362.212:296.77:305:43Third Quarter17Wed
18Thu8:3811.88:1213.21:572.52:116.77:325:41Third Quarter18Thu
19Fri9:5412.99:4113.93:192.03:475.67:345:38Waning Crescent19Fri
20Sat10:4914.410:5015.14:251.14:553.77:365:36Waning Crescent20Sat
21Sun11:3416.111:4716.45:190.25:481.67:385:33Waning Crescent21Sun
22Mon12:1517.76:05-0.56:35-0.47:415:31Waning Crescent22Mon
23Tue12:3817.312:5519.06:48-0.97:19-2.17:435:28New Moon23Tue
24Wed1:2617.91:3319.87:29-0.88:02-3.17:455:26New Moon24Wed
25Thu2:1318.02:1220.18:10-0.28:46-3.57:475:24New Moon25Thu
26Fri3:0017.52:5219.88:510.89:29-3.17:495:21Waxing Crescent26Fri
27Sat3:4716.73:3218.99:332.010:15-2.27:525:19Waxing Crescent27Sat
28Sun3:3615.53:1517.59:183.410:04-0.86:544:16Waxing Crescent28Sun
29Mon4:3114.24:0315.810:084.811:000.76:564:14First Quarter29Mon
30Tue5:3613.15:0114.211:116.06:584:12First Quarter30Tue
31Wed6:5512.56:1912.912:082.112:366.67:004:10First Quarter31Wed
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 2:47 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 transitional phase. Tonight's moon is 70% 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 Waning Gibbous (70% 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