Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 3h 40m at 7:11 pm (2.9 ft)
Next high tide (tomorrow) : 1:13 am (18.5 ft)
Sunset today : 9:36 pm
Sunrise tomorrow : 4:19 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Dec 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:5215.69:5213.02:414.13:421.57:042:17Waning Crescent1Fri
2Sat9:3216.010:3713.53:294.44:230.77:062:16Waning Crescent2Sat
3Sun10:0916.411:1814.04:124.55:000.07:072:15New Moon3Sun
4Mon10:4516.711:5514.34:514.55:35-0.47:092:15New Moon4Mon
5Tue11:2016.95:284.56:09-0.67:112:14New Moon5Tue
6Wed12:3014.511:54 AM17.06:034.46:42-0.77:122:13New Moon6Wed
7Thu1:0514.612:2916.96:384.57:16-0.77:132:13New Moon7Thu
8Fri1:4014.51:0416.67:144.57:50-0.57:152:12Waxing Crescent8Fri
9Sat2:1614.41:4116.17:524.78:25-0.17:162:12Waxing Crescent9Sat
10Sun2:5314.22:2115.48:334.89:030.47:172:11Waxing Crescent10Sun
11Mon3:3314.13:0614.59:214.99:441.17:192:11First Quarter11Mon
12Tue4:1714.24:0113.510:194.810:302.07:202:11First Quarter12Tue
13Wed5:0614.45:0912.611:264.411:252.87:212:11First Quarter13Wed
14Thu6:0114.96:2712.212:393.57:222:11First Quarter14Thu
15Fri6:5815.77:4812.412:273.61:492.27:232:11Waxing Gibbous15Fri
16Sat7:5516.69:0013.21:334.02:520.67:242:11Waxing Gibbous16Sat
17Sun8:5117.710:0314.22:384.13:49-1.07:242:11Waxing Gibbous17Sun
18Mon9:4618.710:5815.23:393.94:41-2.37:252:11Full Moon18Mon
19Tue10:3819.411:4916.04:353.55:30-3.37:262:12Full Moon19Tue
20Wed11:2919.95:273.06:17-3.77:262:12Full Moon20Wed
21Thu12:3716.612:1919.86:172.67:03-3.77:272:13Full Moon21Thu
22Fri1:2316.91:0719.37:072.57:48-3.27:272:13Waning Gibbous22Fri
23Sat2:0816.81:5618.27:572.58:32-2.27:282:14Waning Gibbous23Sat
24Sun2:5316.52:4416.78:482.89:17-0.87:282:14Waning Gibbous24Sun
25Mon3:3816.13:3615.09:443.210:020.77:282:15Third Quarter25Mon
26Tue4:2515.54:3313.310:443.610:502.37:282:16Third Quarter26Tue
27Wed5:1515.05:4211.911:523.811:433.87:292:17Third Quarter27Wed
28Thu6:0814.77:0211.11:053.67:292:18Third Quarter28Thu
29Fri7:0514.58:2411.212:435.02:153.17:282:19Waning Crescent29Fri
30Sat8:0214.69:3211.71:505.73:142.37:282:20Waning Crescent30Sat
31Sun8:5515.010:2212.52:535.94:021.57:282:21Waning Crescent31Sun
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 10:12 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 1% 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 New Moon (1% 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