Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Petersburg, AK.
Next low tide : in 6h 01m at 1:05 pm (0.9 ft)
Next high tide : 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 - Apr 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:2215.81:3715.57:360.77:440.46:207:30Full Moon1Sun
2Mon1:4816.32:0915.68:060.08:120.76:187:32Full Moon2Mon
3Tue2:1316.62:4115.48:36-0.58:391.26:157:34Full Moon3Tue
4Wed2:3816.73:1315.09:05-0.69:061.96:127:36Waning Gibbous4Wed
5Thu3:0316.63:4614.49:35-0.49:332.76:107:38Waning Gibbous5Thu
6Fri3:3016.24:2013.510:070.010:023.66:077:41Waning Gibbous6Fri
7Sat4:0015.74:5912.510:430.710:344.56:047:43Waning Gibbous7Sat
8Sun4:3415.05:4911.511:271.511:155.56:027:45Waning Gibbous8Sun
9Mon5:1814.16:5810.712:242.25:597:47Third Quarter9Mon
10Tue6:2013.38:2810.712:156.31:402.65:567:49Third Quarter10Tue
11Wed7:4712.89:4911.51:486.53:052.35:547:51Third Quarter11Wed
12Thu9:1813.210:4513.03:285.74:151.55:517:53Waning Crescent12Thu
13Fri10:3214.111:2914.64:414.05:090.65:487:55Waning Crescent13Fri
14Sat11:3215.35:372.05:55-0.25:467:57Waning Crescent14Sat
15Sun12:0916.312:2516.36:25-0.26:38-0.65:438:00Waning Crescent15Sun
16Mon12:4717.81:1417.07:10-2.07:19-0.75:418:02New Moon16Mon
17Tue1:2618.92:0217.37:54-3.37:59-0.35:388:04New Moon17Tue
18Wed2:0519.52:4917.18:38-4.08:410.45:358:06New Moon18Wed
19Thu2:4519.53:3716.49:23-3.99:231.45:338:08Waxing Crescent19Thu
20Fri3:2718.94:2615.310:10-3.110:082.65:308:10Waxing Crescent20Fri
21Sat4:1217.75:1914.011:00-1.810:573.95:288:12Waxing Crescent21Sat
22Sun5:0116.16:2112.811:57-0.411:585.05:258:14First Quarter22Sun
23Mon6:0114.47:3612.01:041.05:238:17First Quarter23Mon
24Tue7:1813.18:5812.01:195.82:211.85:208:19First Quarter24Tue
25Wed8:4712.410:0712.62:565.63:342.15:188:21First Quarter25Wed
26Thu10:0612.510:5713.44:174.74:352.05:158:23Waxing Gibbous26Thu
27Fri11:0712.911:3614.25:153.45:221.95:138:25Waxing Gibbous27Fri
28Sat11:5613.45:592.16:011.85:118:27Waxing Gibbous28Sat
29Sun12:0814.912:3713.86:361.06:351.95:088:29Waxing Gibbous29Sun
30Mon12:3715.61:1414.17:090.17:072.05:068:31Full Moon30Mon
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 4:17 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