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Chicago in August

Find out everything about the water temperature in Chicago in August. Average, minimum and maximum recorded temperatures as well as daily temperature in August for the last two years. Compare the current month's water temperature data with other months of the year.
Water temperature in August
Minimum:

64.9 °F

Average:

73.0 °F

Maximum:

77.3 °F

Water temperature in Chicago in August

In the city of Chicago, the month of August is somewhat comfortable for swimming. The minimum recorded temperature during this month was 64.9°F on August 31, 2019, with an average temperature being 73.0°F and a maximum temperature reaching 77.3°F on August 17, 2018.

While some may find it enjoyable for a brief swim, others might consider it a bit too cold for extended periods in the water. In August, the water temperature remains relatively stable. The average temperature stays close to 73.0°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Aug 1 72.6°F 75.5°F 73.7°F
Aug 2 72.9°F 76.1°F 73.7°F
Aug 3 73.2°F 75.4°F 73.9°F
Aug 4 73.1°F 75.8°F 74.1°F
Aug 5 73.5°F 76.3°F 74.6°F
Aug 6 73.6°F 76.5°F 74.0°F
Aug 7 73.3°F 75.9°F 70.5°F
Aug 8 72.9°F 75.3°F 70.1°F
Aug 9 73.0°F 75.3°F 70.7°F
Aug 10 72.4°F 74.7°F 71.1°F
Aug 11 73.0°F 75.3°F 71.3°F
Aug 12 73.2°F 75.5°F 71.5°F
Aug 13 73.1°F 75.4°F 72.0°F
Aug 14 73.1°F 75.4°F 72.1°F
Aug 15 72.9°F 75.1°F 71.8°F
Aug 16 73.1°F 74.0°F 71.6°F
Aug 17 73.4°F 73.9°F 71.5°F
Aug 18 73.4°F 73.9°F 71.1°F
Aug 19 73.5°F 73.9°F 70.9°F
Aug 20 73.6°F 73.6°F 71.0°F
Aug 21 73.5°F 72.8°F 72.1°F
Aug 22 73.1°F 72.6°F 71.8°F
Aug 23 72.9°F 72.3°F 72.0°F
Aug 24 73.1°F 72.5°F 74.0°F
Aug 25 73.2°F 73.1°F 75.3°F
Aug 26 73.0°F 74.0°F 74.4°F
Aug 27 72.8°F 74.6°F 74.1°F
Aug 28 72.9°F 75.0°F 73.9°F
Aug 29 72.5°F 74.0°F 73.6°F
Aug 30 72.4°F 75.2°F 73.1°F
Aug 31 72.2°F 75.6°F 72.5°F

Water temperature in Chicago by month

In Chicago, there are only 5 days through the year when the water is warm enough to be comfortable for swimming. The warmest water in Chicago was recorded on July 10, 2020, reaching a 78.0°F. While the coldest temperature occurred on January 4, 2014, dipping to 32.0°F. The average readings by season are 36.6°F in Winter, 42.8°F in Spring, 68.3°F in Summer, and 59.3°F in Autumn. In August, the temperature is higher than July's average of 70.3°F and September's average of 68.9°F.