Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Petersburg, AK.
Next low tide (tomorrow) : in 1h 04m at 9:44 pm (3.5 ft)
Next high tide : 3:34 am (15.6 ft)
Sunset today : 9:46 pm
Sunrise tomorrow : 4:05 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Nov 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:2614.41:5516.68:034.28:41-0.17:024:08Waxing Crescent1Wed
2Thu3:0313.82:2916.18:364.89:180.57:044:06Waxing Crescent2Thu
3Fri3:4513.13:0715.39:135.510:021.27:064:03Waxing Crescent3Fri
4Sat4:3512.53:5314.510:006.110:551.87:094:01First Quarter4Sat
5Sun5:3612.14:5413.611:046.511:592.37:113:59First Quarter5Sun
6Mon6:4712.36:1413.012:306.47:133:57First Quarter6Mon
7Tue7:5413.17:4113.01:102.41:585.37:153:55First Quarter7Tue
8Wed8:4914.48:5713.62:172.33:083.67:173:53Waxing Gibbous8Wed
9Thu9:3615.910:0114.63:152.04:041.57:203:51Waxing Gibbous9Thu
10Fri10:2017.510:5715.64:061.74:54-0.57:223:49Waxing Gibbous10Fri
11Sat11:0218.811:4916.34:541.55:41-2.27:243:47Full Moon11Sat
12Sun11:4419.75:401.66:26-3.47:263:45Full Moon12Sun
13Mon12:3916.812:2720.26:251.87:11-3.97:283:43Full Moon13Mon
14Tue1:2816.81:1220.07:102.27:57-3.77:313:41Waning Gibbous14Tue
15Wed2:1616.51:5719.47:562.88:45-3.07:333:39Waning Gibbous15Wed
16Thu3:0615.92:4518.28:443.69:34-1.87:353:38Waning Gibbous16Thu
17Fri3:5815.03:3516.79:364.410:27-0.57:373:36Waning Gibbous17Fri
18Sat4:5414.24:3215.110:375.211:240.97:393:34Third Quarter18Sat
19Sun5:5613.75:4013.611:505.67:413:33Third Quarter19Sun
20Mon7:0213.56:5912.512:272.01:155.57:433:31Third Quarter20Mon
21Tue8:0413.88:1812.11:322.82:334.77:453:30Third Quarter21Tue
22Wed8:5714.39:2712.32:323.33:353.67:473:28Waning Crescent22Wed
23Thu9:4014.910:2312.73:253.74:232.57:493:27Waning Crescent23Thu
24Fri10:1715.511:1013.24:113.95:031.47:513:25Waning Crescent24Fri
25Sat10:5116.111:5113.84:514.05:390.57:533:24Waning Crescent25Sat
26Sun11:2416.65:294.26:13-0.17:553:23New Moon26Sun
27Mon12:2914.211:57 AM16.96:044.26:46-0.57:573:21New Moon27Mon
28Tue1:0514.412:3117.16:394.37:20-0.87:593:20New Moon28Tue
29Wed1:4214.51:0517.17:144.57:54-0.88:003:19New Moon29Wed
30Thu2:1814.51:4117.07:494.68:30-0.78:023:18Waxing Crescent30Thu
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 12:39 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 93% 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 Gibbous (93% 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