Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 3h 00m at 8:31 pm (3.9 ft)
Next high tide (tomorrow) : 2:22 am (16.0 ft)
Sunset today : 9:47 pm
Sunrise tomorrow : 4:03 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Apr 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:4213.59:0212.81:325.42:381.65:196:31First Quarter1Thu
2Fri9:0414.210:0014.33:014.33:430.75:176:33Waxing Gibbous2Fri
3Sat10:1015.310:4816.04:082.54:36-0.25:146:35Waxing Gibbous3Sat
4Sun12:0716.56:030.66:24-0.96:117:37Waxing Gibbous4Sun
5Mon12:3217.512:5917.36:52-1.27:08-1.26:097:39Full Moon5Mon
6Tue1:1418.71:4717.87:38-2.67:50-1.26:067:41Full Moon6Tue
7Wed1:5519.52:3417.78:22-3.48:32-0.76:037:44Full Moon7Wed
8Thu2:3619.63:2017.29:07-3.59:140.16:017:46Waning Gibbous8Thu
9Fri3:1719.24:0716.39:52-3.09:581.25:587:48Waning Gibbous9Fri
10Sat3:5918.24:5615.010:38-1.910:432.55:557:50Waning Gibbous10Sat
11Sun4:4416.85:4913.711:28-0.511:353.85:537:52Waning Gibbous11Sun
12Mon5:3415.26:5212.612:260.95:507:54Third Quarter12Mon
13Tue6:3413.78:0712.012:384.91:332.05:477:56Third Quarter13Tue
14Wed7:5112.69:2512.01:585.42:502.75:457:58Third Quarter14Wed
15Thu9:1512.210:2712.63:255.14:002.85:428:00Third Quarter15Thu
16Fri10:2712.511:1413.44:354.24:562.55:408:03Waning Crescent16Fri
17Sat11:2213.011:5114.35:283.15:402.25:378:05Waning Crescent17Sat
18Sun12:0713.76:091.96:172.05:348:07Waning Crescent18Sun
19Mon12:2415.012:4614.26:460.86:501.85:328:09Waning Crescent19Mon
20Tue12:5415.71:2314.77:19-0.17:211.85:298:11New Moon20Tue
21Wed1:2416.31:5815.07:52-0.87:521.95:278:13New Moon21Wed
22Thu1:5416.62:3315.08:24-1.28:232.15:248:15New Moon22Thu
23Fri2:2416.83:0814.98:58-1.38:542.45:228:17New Moon23Fri
24Sat2:5516.73:4514.59:33-1.39:282.95:198:19Waxing Crescent24Sat
25Sun3:2916.44:2514.010:10-0.910:053.45:178:22Waxing Crescent25Sun
26Mon4:0615.95:1013.410:53-0.410:494.05:148:24Waxing Crescent26Mon
27Tue4:5115.26:0412.911:420.211:444.55:128:26First Quarter27Tue
28Wed5:4614.37:0712.612:400.85:108:28First Quarter28Wed
29Thu6:5613.58:1613.012:554.71:471.25:078:30First Quarter29Thu
30Fri8:1913.19:2313.92:204.32:571.35:058:32First Quarter30Fri
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 11:26 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 99% 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 Full Moon (99% 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