Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 2h 28m at 1:39 pm (3.2 ft)
Next high tide : 8:08 pm (14.9 ft)
Sunset today : 9:41 pm
Sunrise tomorrow : 4:12 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Apr 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:0314.312:0115.26:053.16:26-0.16:187:32Waxing Gibbous1Fri
2Sat12:4115.312:4615.76:481.77:03-0.36:157:34Waxing Gibbous2Sat
3Sun1:1316.11:2616.07:250.67:36-0.36:127:36Full Moon3Sun
4Mon1:4216.62:0216.07:59-0.38:060.16:107:38Full Moon4Mon
5Tue2:1016.92:3615.88:31-0.88:350.76:077:40Full Moon5Tue
6Wed2:3617.03:1015.39:02-0.99:031.56:047:43Full Moon6Wed
7Thu3:0216.83:4314.69:33-0.79:322.46:027:45Waning Gibbous7Thu
8Fri3:2816.34:1713.810:04-0.210:003.45:597:47Waning Gibbous8Fri
9Sat3:5715.74:5412.710:390.610:314.45:567:49Waning Gibbous9Sat
10Sun4:2814.85:3911.611:181.511:075.45:547:51Waning Gibbous10Sun
11Mon5:0713.96:4010.712:092.45:517:53Third Quarter11Mon
12Tue6:0012.98:0810.31:193.15:497:55Third Quarter12Tue
13Wed7:1812.29:3710.81:206.92:463.15:467:57Third Quarter13Wed
14Thu8:5212.210:3712.03:086.54:012.45:437:59Third Quarter14Thu
15Fri10:1013.011:2013.44:265.24:561.55:418:02Waning Crescent15Fri
16Sat11:1114.211:5614.95:213.45:400.65:388:04Waning Crescent16Sat
17Sun12:0215.36:071.46:20-0.15:368:06Waning Crescent17Sun
18Mon12:3116.512:5016.26:49-0.56:59-0.45:338:08New Moon18Mon
19Tue1:0717.81:3616.87:31-2.17:37-0.45:318:10New Moon19Tue
20Wed1:4318.82:2217.08:13-3.38:170.15:288:12New Moon20Wed
21Thu2:2119.33:0816.78:56-3.88:570.85:258:14Waxing Crescent21Thu
22Fri3:0119.23:5615.99:41-3.69:401.95:238:16Waxing Crescent22Fri
23Sat3:4418.54:4814.810:30-2.810:273.15:218:19Waxing Crescent23Sat
24Sun4:3117.35:4613.611:24-1.611:214.35:188:21Waxing Crescent24Sun
25Mon5:2615.86:5612.612:27-0.25:168:23First Quarter25Mon
26Tue6:3614.28:1812.312:325.31:410.95:138:25First Quarter26Tue
27Wed8:0313.29:3612.72:065.63:001.45:118:27First Quarter27Wed
28Thu9:3112.910:3713.63:404.94:091.45:088:29Waxing Gibbous28Thu
29Fri10:4313.211:2314.54:513.65:041.35:068:31Waxing Gibbous29Fri
30Sat11:3913.75:432.25:491.25:048:33Waxing Gibbous30Sat
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 4:53 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 transitional phase. Tonight's moon is 39% 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 Third Quarter (39% 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