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Water temperature in Shelbyville (IL) in August

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Is it warm enough to swim in Shelbyville in August? Average water temperature in Shelbyville in August is 75°F and therefore suitable for comfortable swimming. The warmest water in Shelbyville in August is 82.4°F, and the coldest is 66.2°F. To find out the water temperature today and in the coming days, go to Current water temperature in Shelbyville

Changes water temperature in Shelbyville in August 2025, 2024

To get an accurate forecast for the water temperature in Shelbyville for any chosen month, compare two years within a 10 year range using the chart below.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024
August 177°F 
August 277°F78.8°F
August 373.4°F80.6°F
August 471.6°F 
August 573.4°F 
August 673.4°F77°F
August 777°F75.2°F
August 878.8°F75.2°F
August 978.8°F71.6°F
August 1080.6°F 
August 1180.6°F68°F
August 1280.6°F 
August 1380.6°F 
August 1480.6°F71.6°F
August 1580.6°F71.6°F
Day 2025 2024
August 1682.4°F73.4°F
August 1780.6°F73.4°F
August 1882.4°F71.6°F
August 1980.6°F71.6°F
August 2078.8°F69.8°F
August 2177°F69.8°F
August 2275.2°F69.8°F
August 2373.4°F69.8°F
August 2469.8°F71.6°F
August 2568°F73.4°F
August 2668°F77°F
August 2769.8°F78.8°F
August 2868°F80.6°F
August 2966.2°F80.6°F
August 30 80.6°F
August 3168°F77°F

Average water temperature in Shelbyville in August over a decade

20162017201820192020
73.4°F76.6°F74.3°F
20212022202320242025
77.2°F73.2°F75.7°F74.3°F75.7°F

Shelbyville 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 August?

Want to know where the water temperature in August 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

Illinois photo gallery

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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 Shelbyville 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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