Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Petersburg, AK.
Next low tide (tomorrow) : 6:28 am (0.8 ft)
Next high tide : in 4h 37m at 11:22 pm (14.2 ft)
Sunset today : 9:17 pm
Sunrise tomorrow : 4:39 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jun 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:5918.32:0215.77:39-3.37:471.92:077:31Waning Gibbous1Thu
2Fri1:4517.92:5115.48:26-2.98:382.32:067:33Waning Gibbous2Fri
3Sat2:3516.93:4415.09:16-2.19:362.82:057:34Waning Gibbous3Sat
4Sun3:3115.74:4314.710:11-1.010:443.12:047:35Third Quarter4Sun
5Mon4:3514.45:4614.611:120.011:593.02:037:37Third Quarter5Mon
6Tue5:4913.46:5114.812:180.92:027:38Third Quarter6Tue
7Wed7:0812.97:5215.31:162.41:241.62:017:39Waning Crescent7Wed
8Thu8:2212.98:4715.92:251.42:271.92:017:40Waning Crescent8Thu
9Fri9:2713.49:3616.53:230.23:232.12:007:41Waning Crescent9Fri
10Sat10:2213.910:2016.84:14-0.84:122.21:597:42Waning Crescent10Sat
11Sun11:1014.311:0117.04:58-1.54:572.31:597:43New Moon11Sun
12Mon11:5414.611:4017.05:39-2.05:382.41:587:44New Moon12Mon
13Tue12:3414.86:18-2.16:172.61:587:45New Moon13Tue
14Wed12:1716.81:1214.76:55-2.06:552.91:587:45New Moon14Wed
15Thu12:5316.41:4914.57:31-1.77:323.21:587:46Waxing Crescent15Thu
16Fri1:2915.82:2614.28:08-1.18:113.61:577:46Waxing Crescent16Fri
17Sat2:0515.03:0413.78:44-0.48:513.91:577:47Waxing Crescent17Sat
18Sun2:4414.13:4413.49:230.49:374.31:577:47Waxing Crescent18Sun
19Mon3:2713.14:2913.110:051.210:314.51:577:48First Quarter19Mon
20Tue4:1812.25:1813.010:522.011:354.51:587:48First Quarter20Tue
21Wed5:2111.46:1213.111:452.71:587:48First Quarter21Wed
22Thu6:3311.17:0713.712:454.012:443.11:587:49First Quarter22Thu
23Fri7:4711.38:0014.41:513.11:443.31:587:49Waxing Gibbous23Fri
24Sat8:5212.08:5015.42:491.82:413.21:597:49Waxing Gibbous24Sat
25Sun9:5012.99:3816.53:400.43:352.91:597:49Waxing Gibbous25Sun
26Mon10:4114.010:2517.54:27-1.14:252.42:007:48Full Moon26Mon
27Tue11:3014.911:1218.35:12-2.45:131.92:007:48Full Moon27Tue
28Wed12:1615.75:56-3.36:001.52:017:48Full Moon28Wed
29Thu1:0216.26:41-3.96:481.22:027:48Full Moon29Thu
30Fri12:4618.91:4816.57:26-3.97:371.12:037:47Waning Gibbous30Fri
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 2:55 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 87% 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 (87% 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