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 2h 10m at 4:23 pm (6.0 ft)
Next high tide : 10:24 pm (13.7 ft)
Sunset today : 9:19 pm
Sunrise tomorrow : 4:37 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jun 1963

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:0911.78:3613.92:193.52:182.72:077:31Waxing Gibbous1Sat
2Sun9:0912.19:1714.53:132.53:072.82:067:32Waxing Gibbous2Sun
3Mon9:5812.69:5415.13:561.43:492.82:057:33Waxing Gibbous3Mon
4Tue10:4113.110:2815.74:350.54:282.82:047:35Waxing Gibbous4Tue
5Wed11:2113.611:0116.15:10-0.35:042.82:037:36Full Moon5Wed
6Thu11:5914.011:3516.45:44-0.95:402.92:027:37Full Moon6Thu
7Fri12:3514.26:17-1.36:153.02:027:38Full Moon7Fri
8Sat12:0916.51:1214.26:51-1.56:503.22:017:40Full Moon8Sat
9Sun12:4416.41:5014.17:27-1.57:273.42:007:41Waning Gibbous9Sun
10Mon1:2016.22:3013.98:04-1.38:083.72:007:42Waning Gibbous10Mon
11Tue2:0015.73:1313.68:44-1.08:544.01:597:42Waning Gibbous11Tue
12Wed2:4415.04:0113.59:29-0.59:484.21:597:43Waning Gibbous12Wed
13Thu3:3714.24:5513.510:200.210:544.11:587:44Third Quarter13Thu
14Fri4:4013.35:5413.811:170.81:587:45Third Quarter14Fri
15Sat5:5412.76:5314.512:083.512:201.31:587:46Third Quarter15Sat
16Sun7:1212.77:5115.51:212.41:241.71:587:46Waning Crescent16Sun
17Mon8:2613.18:4516.52:280.92:261.81:577:47Waning Crescent17Mon
18Tue9:3213.99:3617.53:27-0.73:241.81:577:47Waning Crescent18Tue
19Wed10:3114.710:2518.34:20-2.14:181.81:577:48New Moon19Wed
20Thu11:2415.411:1418.75:09-3.25:091.71:577:48New Moon20Thu
21Fri12:1415.85:57-3.85:581.71:587:48New Moon21Fri
22Sat12:0118.81:0215.96:43-4.06:451.91:587:48New Moon22Sat
23Sun12:4718.41:4815.87:28-3.67:332.21:587:49Waxing Crescent23Sun
24Mon1:3317.62:3415.38:13-2.88:212.71:597:49Waxing Crescent24Mon
25Tue2:1916.43:2014.88:58-1.89:123.21:597:49Waxing Crescent25Tue
26Wed3:0615.04:0714.29:44-0.510:073.72:007:49First Quarter26Wed
27Thu3:5713.64:5713.710:320.711:094.02:007:48First Quarter27Thu
28Fri4:5612.35:4913.411:231.92:017:48First Quarter28Fri
29Sat6:0411.36:4413.312:184.012:192.92:017:48First Quarter29Sat
30Sun7:1810.97:3613.61:273.61:173.62:027:47Waxing Gibbous30Sun
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 7:23 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 80% 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 Waxing Gibbous (80% 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