Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 2h 07m at 5:23 am (-0.7 ft)
Next high tide : 11:42 am (12.5 ft)
Sunset today : 9:38 pm
Sunrise tomorrow : 4:16 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Oct 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:0612.54:4114.610:375.111:422.26:576:24Third Quarter1Wed
2Thu6:0011.55:2913.711:216.16:596:21Third Quarter2Thu
3Fri7:1810.96:4312.912:472.912:306.87:026:18Third Quarter3Fri
4Sat8:5011.18:2112.82:113.02:176.97:046:16Third Quarter4Sat
5Sun10:0212.39:4713.63:312.43:525.77:066:13Waning Crescent5Sun
6Mon10:5313.810:5214.94:321.44:573.87:086:10Waning Crescent6Mon
7Tue11:3515.611:4716.15:220.45:471.77:106:08Waning Crescent7Tue
8Wed12:1417.26:05-0.36:33-0.37:126:05Waning Crescent8Wed
9Thu12:3717.112:5218.76:47-0.77:16-2.07:146:02New Moon9Thu
10Fri1:2417.71:3019.77:27-0.78:00-3.27:166:00New Moon10Fri
11Sat2:1117.82:0920.28:07-0.28:43-3.67:185:57New Moon11Sat
12Sun2:5817.52:4920.08:480.79:28-3.37:205:55Waxing Crescent12Sun
13Mon3:4516.63:3219.29:311.810:16-2.47:235:52Waxing Crescent13Mon
14Tue4:3615.44:1717.810:173.211:08-1.07:255:49Waxing Crescent14Tue
15Wed5:3314.15:0916.211:104.57:275:47First Quarter15Wed
16Thu6:4212.96:1414.512:080.612:175.77:295:44First Quarter16Thu
17Fri8:0412.47:3713.31:221.81:476.27:315:42First Quarter17Fri
18Sat9:2612.89:0812.92:442.43:225.77:335:39First Quarter18Sat
19Sun10:2713.510:2213.23:562.54:344.67:355:37Waxing Gibbous19Sun
20Mon11:1214.411:1813.74:522.35:253.27:385:34Waxing Gibbous20Mon
21Tue11:4815.25:352.16:062.07:405:32Waxing Gibbous21Tue
22Wed12:0314.312:1915.96:112.16:410.97:425:29Waxing Gibbous22Wed
23Thu12:4214.712:4716.56:432.27:140.07:445:27Full Moon23Thu
24Fri1:1715.01:1416.97:122.47:45-0.57:465:25Full Moon24Fri
25Sat1:5115.21:4117.17:412.78:16-0.87:485:22Full Moon25Sat
26Sun2:2515.12:0817.08:103.18:47-0.87:515:20Full Moon26Sun
27Mon2:5914.92:3716.88:403.69:20-0.57:535:17Waning Gibbous27Mon
28Tue3:3414.43:0816.49:104.29:550.07:555:15Waning Gibbous28Tue
29Wed4:1313.83:4215.89:444.910:350.67:575:13Waning Gibbous29Wed
30Thu4:5713.04:2215.010:235.511:231.37:595:10Waning Gibbous30Thu
31Fri5:5012.45:1314.211:146.18:025:08Third Quarter31Fri
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 8:32 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 spring phase. Tonight's moon is 10% 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 Waning Crescent (10% 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