Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Petersburg, AK.
Next low tide : 7:54 pm (1.1 ft)
Next high tide : in 2h 30m at 2:02 pm (16.2 ft)
Sunset today : 8:38 pm
Sunrise tomorrow : 5:14 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - May 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:3613.19:5914.93:422.33:481.93:036:34Waning Crescent1Sun
2Mon10:2113.610:3015.54:221.14:232.03:016:36Waning Crescent2Mon
3Tue10:5913.910:5815.94:570.14:552.22:586:38New Moon3Tue
4Wed11:3614.211:2616.25:30-0.65:262.42:566:40New Moon4Wed
5Thu12:1114.36:01-1.15:562.82:546:42New Moon5Thu
6Fri12:4514.26:33-1.26:263.22:526:44New Moon6Fri
7Sat12:2416.31:2014.07:06-1.16:573.62:496:46Waxing Crescent7Sat
8Sun12:5416.01:5713.57:40-0.87:294.12:476:48Waxing Crescent8Sun
9Mon1:2715.62:3812.98:18-0.48:064.72:456:50Waxing Crescent9Mon
10Tue2:0415.03:2412.39:010.28:495.22:436:52Waxing Crescent10Tue
11Wed2:4814.34:1911.99:510.79:465.62:416:54First Quarter11Wed
12Thu3:4413.45:2311.910:491.211:015.62:396:56First Quarter12Thu
13Fri4:5612.76:2812.511:541.42:376:58First Quarter13Fri
14Sat6:1912.57:2713.512:284.912:591.52:357:00First Quarter14Sat
15Sun7:3812.88:1814.91:453.51:591.32:337:02Waxing Gibbous15Sun
16Mon8:4713.59:0416.32:471.62:531.22:317:04Waxing Gibbous16Mon
17Tue9:4714.49:4917.63:41-0.43:431.12:297:06Waxing Gibbous17Tue
18Wed10:4215.210:3318.64:30-2.14:311.22:277:08Full Moon18Wed
19Thu11:3415.711:1819.15:17-3.45:181.42:267:10Full Moon19Thu
20Fri12:2415.96:04-4.06:041.72:247:12Full Moon20Fri
21Sat12:0319.21:1315.76:51-4.06:512.22:227:13Waning Gibbous21Sat
22Sun12:5018.72:0315.27:38-3.57:402.82:207:15Waning Gibbous22Sun
23Mon1:3717.82:5414.58:27-2.58:323.52:197:17Waning Gibbous23Mon
24Tue2:2716.53:4813.89:19-1.39:304.22:177:19Waning Gibbous24Tue
25Wed3:2114.94:4713.210:13-0.110:364.62:167:20Third Quarter25Wed
26Thu4:2213.45:4813.011:121.111:514.62:147:22Third Quarter26Thu
27Fri5:3212.26:4813.012:132.02:137:24Third Quarter27Fri
28Sat6:4811.57:4213.41:064.11:122.72:127:25Third Quarter28Sat
29Sun7:5911.48:2713.92:113.22:063.22:107:27Waning Crescent29Sun
30Mon9:0011.69:0614.53:042.12:543.52:097:28Waning Crescent30Mon
31Tue9:5212.19:4315.03:491.13:373.72:087:30Waning Crescent31Tue
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 4:58 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 0% 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 (0% 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