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Water temperature in Prudhoe Bay (AK) in September

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Is it warm enough to swim in Prudhoe Bay in September? Average water temperature in Prudhoe Bay in September is 35.6°F and therefore is not suitable for comfortable swimming. The warmest sea in Prudhoe Bay in September is 45.9°F, and the coldest is 29.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Prudhoe Bay

Changes water temperature in Prudhoe Bay in September 2025, 2024

To get an accurate forecast for the water temperature in Prudhoe Bay for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Prudhoe Bay, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
September 139.4°F41.7°F34.9°F41.7°F
September 240.3°F41.5°F34.7°F42.1°F
September 341.2°F41.2°F34.2°F42.1°F
September 441.7°F41.9°F33.3°F44.2°F
September 541°F43.2°F32.9°F43.3°F
September 641.2°F42.8°F31.6°F43.7°F
September 740.5°F43°F32.4°F44.4°F
September 839.7°F42.1°F32.5°F45.9°F
September 939.2°F41.4°F32.5°F45.3°F
September 1038.8°F42.8°F32.7°F45.9°F
September 1138.3°F41.5°F32.7°F44.6°F
September 1237.9°F38.3°F31.6°F43.7°F
September 1338.1°F38.1°F32.2°F43°F
September 1438.1°F37.6°F31.6°F42.4°F
September 1537.6°F37.2°F31.6°F41.7°F
Day 2025 2024 Min Max
September 1636.5°F37.2°F31.5°F41°F
September 1736°F36.7°F31.5°F40.3°F
September 1835.6°F37.2°F31.5°F39.7°F
September 1935.2°F38.5°F31.3°F39.4°F
September 2036.5°F38.3°F30.2°F38.8°F
September 2136.1°F37.6°F30°F38.3°F
September 2236°F36.7°F30°F37.8°F
September 2335.4°F37°F30°F37.2°F
September 2435.4°F36.9°F30°F37.8°F
September 2535.8°F36.3°F30.2°F37.4°F
September 2635.6°F36.3°F30.2°F38.3°F
September 2734.7°F36.5°F30.4°F38.3°F
September 2834.5°F37°F30.4°F38.5°F
September 2934.2°F36.9°F29.5°F37.6°F
September 3034°F36.5°F30.2°F37.8°F
Prudhoe Bay water temp chart in September

Average water temperature in Prudhoe Bay in September over a decade

20162017201820192020
36.7°F36.5°F33.3°F41°F34.9°F
20212022202320242025
35.6°F34.9°F36.7°F39°F

Prudhoe Bay sea state in September

Chart comparing the height of waves in Prudhoe Bay in September over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Prudhoe Bay in September

Prudhoe Bay water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in September?

Want to know where the water temperature in September is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Point Lay42.6°F35.2°F51.1°F
Tuktoyaktuk42.6°F32.7°F57.7°F
Point Hope46.2°F39°F54.5°F
Nome49.6°F36.9°F57.9°F
Diomede43.2°F36°F49.5°F
Anchorage53.8°F47.8°F59.7°F
Valdez52.5°F48.7°F57.9°F
Whittier51.4°F46.6°F55.6°F
Prince William Sound53.4°F48.7°F58.8°F
Cordova52.9°F49.1°F57.4°F

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Prudhoe Bay is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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