World sea water temperatures

Water temperature in St. Paul (AK) in September

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Is it warm enough to swim in St. Paul in September? Average water temperature in St. Paul in September is 47.1°F and therefore is not suitable for comfortable swimming. The warmest sea in St. Paul in September is 52.3°F, and the coldest is 41.4°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in St. Paul

Changes water temperature in St. Paul in September 2025, 2024

To get an accurate forecast for the water temperature in St. Paul for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in St. Paul, 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 148°F44.6°F44.6°F52.3°F
September 247.5°F44.2°F44.2°F52.2°F
September 347.5°F45°F43.3°F51.8°F
September 447.8°F44.6°F43.7°F51.3°F
September 547.8°F45.1°F43.9°F52°F
September 648°F44.8°F44.4°F52.2°F
September 748°F45.5°F45°F52°F
September 847.1°F45.5°F44.2°F52°F
September 947.5°F45.9°F44.4°F51.8°F
September 1047.3°F45.5°F44.1°F51.8°F
September 1147.5°F46°F43.9°F51.4°F
September 1247.8°F45.7°F44.2°F50.9°F
September 1347.7°F45.9°F44.2°F50.7°F
September 1447.7°F45.7°F43.9°F50.9°F
September 1548°F45.5°F43.9°F50.5°F
Day 2025 2024 Min Max
September 1647.7°F45.5°F43.7°F50.5°F
September 1747.7°F44.4°F43.3°F50.4°F
September 1847.7°F44.2°F43.9°F50.7°F
September 1947.8°F44.2°F44.1°F50.9°F
September 2047.7°F44.8°F43.2°F50.4°F
September 2147.8°F44.6°F43°F50.5°F
September 2247.7°F44.4°F42.3°F50.5°F
September 2347.3°F44.8°F42.4°F50.4°F
September 2446.9°F44.4°F43°F50.2°F
September 2547.7°F44.4°F42.8°F49.3°F
September 2648°F44.6°F43°F49.3°F
September 2747.5°F44.6°F41.5°F50°F
September 2846.9°F44.6°F41.4°F49.6°F
September 2946.9°F44.2°F41.5°F49.6°F
September 3047.3°F43.9°F41.7°F49.6°F
St. Paul water temp chart in September

Average water temperature in St. Paul in September over a decade

20162017201820192020
50.4°F47.8°F48.2°F50.5°F48.2°F
20212022202320242025
49.1°F46°F47.1°F45°F

St. Paul sea state in September

Chart comparing the height of waves in St. Paul 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 St. Paul in September

St. Paul 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
Togiak52.3°F45.1°F61.3°F
Dillingham52.5°F45°F61.3°F
Nome49.6°F36.9°F57.9°F
Diomede43.2°F36°F49.5°F
Kodiak50.4°F46.8°F55.8°F
Anchor Point50.9°F48.2°F54.7°F
Cook Inlet52.7°F49.1°F56.7°F
Homer51.1°F48.2°F55.8°F
Kenai53.1°F49.3°F57.7°F
Kotzebue46.9°F36°F58.1°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 St. Paul 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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