Tides Today & Tomorrow in Petersburg, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Petersburg, AK.
Next low tide (tomorrow) : in 44m at 11:47 pm (2.7 ft)
Next high tide : 5:41 am (14.9 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 3:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9451439
Common Questions About Tides

Petersburg, AK Tides - Jun 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:4912.49:2214.92:542.62:581.94:079:32First Quarter1Mon
2Tue10:0512.210:1615.34:051.73:592.64:059:33Waxing Gibbous2Tue
3Wed11:1212.411:0415.75:050.74:553.14:049:35Waxing Gibbous3Wed
4Thu12:0912.85:56-0.15:463.54:049:36Waxing Gibbous4Thu
5Fri12:5913.36:41-0.86:323.64:039:37Full Moon5Fri
6Sat12:3016.21:4213.67:21-1.27:143.74:029:38Full Moon6Sat
7Sun1:0916.32:2113.87:59-1.47:543.74:019:39Full Moon7Sun
8Mon1:4716.32:5813.98:35-1.48:323.74:009:40Full Moon8Mon
9Tue2:2416.13:3413.89:10-1.39:093.84:009:41Waning Gibbous9Tue
10Wed3:0015.84:1013.69:45-1.09:463.93:599:42Waning Gibbous10Wed
11Thu3:3615.34:4613.410:20-0.610:264.13:599:43Waning Gibbous11Thu
12Fri4:1414.65:2313.210:560.011:094.23:589:44Waning Gibbous12Fri
13Sat4:5513.86:0213.111:320.711:584.33:589:45Waning Gibbous13Sat
14Sun5:4012.86:4413.112:121.43:589:46Third Quarter14Sun
15Mon6:3511.97:3113.312:554.212:572.23:589:46Third Quarter15Mon
16Tue7:4111.38:2113.71:593.71:483.03:589:47Third Quarter16Tue
17Wed8:5611.09:1514.43:072.92:483.63:589:47Waning Crescent17Wed
18Thu10:1111.410:0915.34:111.73:514.03:589:48Waning Crescent18Thu
19Fri11:1812.211:0316.25:090.34:534.03:589:48Waning Crescent19Fri
20Sat12:1713.16:02-1.15:513.73:589:48Waning Crescent20Sat
21Sun1:1114.16:52-2.56:463.23:589:48New Moon21Sun
22Mon12:4818.12:0115.07:41-3.57:372.63:589:49New Moon22Mon
23Tue1:4018.72:4815.78:28-4.18:282.03:599:49New Moon23Tue
24Wed2:3018.93:3516.19:14-4.29:191.73:599:49Waxing Crescent24Wed
25Thu3:2018.54:2116.310:00-3.910:111.54:009:49Waxing Crescent25Thu
26Fri4:1117.65:0716.210:47-3.011:061.64:009:48Waxing Crescent26Fri
27Sat5:0416.25:5416.011:33-1.74:019:48First Quarter27Sat
28Sun6:0014.56:4415.612:051.812:22-0.24:019:48First Quarter28Sun
29Mon7:0412.97:3715.21:102.01:141.54:029:48First Quarter29Mon
30Tue8:1711.78:3414.92:202.02:122.94:039:47First Quarter30Tue
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 2:44 am — 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 transitional phase. Tonight's moon is 29% 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 shifting between spring and neap.

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 Waxing Crescent (29% illuminated). This places Petersburg, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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