Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Petersburg, AK.
Next low tide (tomorrow) : 2:00 am (2.8 ft)
Next high tide : in 5h 25m at 7:30 pm (14.6 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Oct 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:1811.18:3413.32:252.82:386.86:556:26First Quarter1Sun
2Mon10:2912.410:0014.33:502.14:105.66:576:24Waxing Gibbous2Mon
3Tue11:1814.011:0615.64:530.95:133.67:006:21Waxing Gibbous3Tue
4Wed11:5915.85:42-0.26:041.57:026:18Waxing Gibbous4Wed
5Thu12:0016.812:3717.46:25-1.06:50-0.57:046:16Full Moon5Thu
6Fri12:5017.71:1518.77:05-1.37:34-2.27:066:13Full Moon6Fri
7Sat1:3818.21:5219.67:45-1.28:17-3.27:086:10Full Moon7Sat
8Sun2:2418.12:2919.98:24-0.59:00-3.57:106:08Waning Gibbous8Sun
9Mon3:1017.43:0819.59:030.69:44-3.07:126:05Waning Gibbous9Mon
10Tue3:5716.43:4818.59:432.010:31-1.97:146:02Waning Gibbous10Tue
11Wed4:4615.04:3117.110:273.611:22-0.47:166:00Waning Gibbous11Wed
12Thu5:4213.55:2015.411:165.17:185:57Third Quarter12Thu
13Fri6:5212.36:2613.812:241.112:226.47:215:55Third Quarter13Fri
14Sat8:2211.87:5712.71:402.32:016.97:235:52Third Quarter14Sat
15Sun9:4812.29:3012.73:052.73:456.47:255:49Third Quarter15Sun
16Mon10:4713.010:4013.24:162.54:535.17:275:47Waning Crescent16Mon
17Tue11:2814.011:3113.95:082.15:403.87:295:44Waning Crescent17Tue
18Wed12:0014.95:481.86:172.57:315:42Waning Crescent18Wed
19Thu12:1214.512:2815.76:221.56:491.37:335:39Waning Crescent19Thu
20Fri12:4914.912:5416.46:521.57:200.47:365:37New Moon20Fri
21Sat1:2315.31:2016.97:211.77:49-0.37:385:34New Moon21Sat
22Sun1:5615.41:4617.27:492.08:19-0.77:405:32New Moon22Sun
23Mon2:2915.32:1317.38:172.58:49-0.87:425:29New Moon23Mon
24Tue3:0315.02:4117.18:473.29:22-0.67:445:27Waxing Crescent24Tue
25Wed3:3914.43:1216.89:173.99:57-0.17:465:24Waxing Crescent25Wed
26Thu4:1913.73:4716.29:524.710:390.57:495:22Waxing Crescent26Thu
27Fri5:0612.84:2915.410:325.511:301.37:515:20Waxing Crescent27Fri
28Sat6:0612.15:2414.411:276.37:535:17First Quarter28Sat
29Sun6:2311.95:4113.512:351.911:48 AM6.76:554:15First Quarter29Sun
30Mon7:4312.47:1313.312:532.21:276.26:574:13First Quarter30Mon
31Tue8:4713.78:3713.82:081.92:514.67:004:10Waxing Gibbous31Tue
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 10:45 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places Petersburg, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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