Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 6h 44m at 4:43 am (2.2 ft)
Next high tide : 11:09 am (10.6 ft)
Sunset today : 9:21 pm
Sunrise tomorrow : 4:35 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - May 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:0715.13:1512.68:520.58:514.83:026:34Waning Gibbous1Fri
2Sat2:4414.24:0411.89:351.39:375.53:006:36Third Quarter2Sat
3Sun3:2913.35:0811.310:292.110:406.12:586:38Third Quarter3Sun
4Mon4:3012.56:2311.311:362.52:566:41Third Quarter4Mon
5Tue5:4912.07:3212.012:066.112:492.52:536:43Third Quarter5Tue
6Wed7:1212.28:2513.11:305.21:552.12:516:45Waning Crescent6Wed
7Thu8:2213.09:1014.52:353.82:491.42:496:47Waning Crescent7Thu
8Fri9:2014.19:5015.93:271.93:360.82:476:49Waning Crescent8Fri
9Sat10:1215.210:2917.34:130.04:200.32:456:51Waning Crescent9Sat
10Sun11:0216.011:0918.44:57-1.75:020.12:436:53New Moon10Sun
11Mon11:5016.611:4919.15:41-3.15:440.22:406:55New Moon11Mon
12Tue12:3716.76:25-3.96:270.62:386:57New Moon12Tue
13Wed12:3119.31:2616.57:10-4.27:121.22:366:59Waxing Crescent13Wed
14Thu1:1518.92:1615.87:58-3.88:002.12:347:01Waxing Crescent14Thu
15Fri2:0318.03:1015.08:49-2.98:533.12:337:03Waxing Crescent15Fri
16Sat2:5416.74:1014.19:44-1.69:554.02:317:05First Quarter16Sat
17Sun3:5515.25:1713.510:47-0.411:114.62:297:07First Quarter17Sun
18Mon5:0713.86:3013.411:560.62:277:08First Quarter18Mon
19Tue6:2912.97:3713.712:384.51:061.22:257:10First Quarter19Tue
20Wed7:4812.78:3314.41:573.62:091.52:237:12Waxing Gibbous20Wed
21Thu8:5512.99:1915.03:002.53:031.72:227:14Waxing Gibbous21Thu
22Fri9:5013.39:5715.63:501.33:481.82:207:16Waxing Gibbous22Fri
23Sat10:3613.710:3216.04:310.34:282.02:197:18Waxing Gibbous23Sat
24Sun11:1814.011:0416.35:08-0.55:042.22:177:19Full Moon24Sun
25Mon11:5514.211:3516.45:42-1.05:392.52:167:21Full Moon25Mon
26Tue12:3214.36:15-1.36:122.82:147:23Full Moon26Tue
27Wed12:0716.41:0714.16:48-1.36:463.22:137:24Full Moon27Wed
28Thu12:3816.21:4313.97:21-1.17:203.72:117:26Waning Gibbous28Thu
29Fri1:1115.82:2013.47:56-0.77:554.12:107:27Waning Gibbous29Fri
30Sat1:4615.23:0013.08:33-0.28:354.62:097:29Waning Gibbous30Sat
31Sun2:2514.53:4512.59:140.49:225.02:087:30Waning Gibbous31Sun
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 7:56 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 72% 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 Waxing Gibbous (72% 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