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Isumi in July

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

68.7 °F

Average:

74.3 °F

Maximum:

80.6 °F

Sea water temperature in Isumi in July

In the city of Isumi, the month of July is a great time for swimming. The minimum recorded temperature during this month was 68.7°F on July 10, 2019, with an average temperature being 74.3°F and a maximum temperature reaching 80.6°F on July 30, 2024.

The watter temperature range during this month provides a satisfying and enjoyable experience in the water. Throughout the month of July, the sea temperature gradually gets warmer. Starting with an average temperature of 72.4°F at the beginning of the month, it steadily increases to around 76.1°F by the end.
Date 10 years average 2024 2023
Jul 1 71.7°F 69.1°F 72.0°F
Jul 2 71.5°F 69.6°F 71.7°F
Jul 3 72.1°F 69.9°F 72.3°F
Jul 4 72.1°F 70.2°F 71.5°F
Jul 5 72.3°F 73.9°F 70.2°F
Jul 6 72.7°F 74.1°F 71.1°F
Jul 7 72.7°F 74.1°F 71.6°F
Jul 8 73.0°F 73.9°F 72.3°F
Jul 9 73.3°F 74.6°F 71.6°F
Jul 10 73.1°F 74.9°F 72.7°F
Jul 11 73.2°F 75.0°F 73.5°F
Jul 12 73.4°F 75.0°F 72.5°F
Jul 13 73.6°F 75.1°F 72.9°F
Jul 14 74.0°F 75.0°F 73.2°F
Jul 15 74.2°F 73.8°F 73.6°F
Jul 16 74.4°F 73.9°F 73.3°F
Jul 17 74.4°F 74.1°F 73.5°F
Jul 18 74.5°F 74.0°F 76.6°F
Jul 19 74.6°F 75.4°F 75.6°F
Jul 20 74.8°F 74.9°F 75.4°F
Jul 21 75.1°F 75.1°F 74.8°F
Jul 22 75.7°F 77.1°F 75.3°F
Jul 23 75.4°F 77.5°F 75.8°F
Jul 24 75.7°F 77.0°F 76.3°F
Jul 25 76.2°F 78.4°F 74.8°F
Jul 26 76.3°F 77.9°F 75.0°F
Jul 27 76.6°F 77.7°F 75.9°F
Jul 28 76.3°F 77.4°F 76.1°F
Jul 29 76.2°F 77.5°F 74.8°F
Jul 30 76.7°F 80.6°F 76.2°F
Jul 31 76.8°F 80.0°F 74.8°F

Sea water temperature in Isumi by month

In Isumi, the months July through October offer comfortable swimming conditions, which amounts to 102 swimming days. The warmest water in Isumi was recorded on August 17, 2024, reaching a 82.8°F. While the coldest temperature occurred on February 18, 2018, dipping to 56.0°F. The average readings by season are 62.0°F in Winter, 62.0°F in Spring, 74.0°F in Summer, and 73.8°F in Autumn. The average temperature in July is slightly warmer than June's average of 69.2°F. And in August, the temperature is expected to rise further, potentially reaching an average of 78.5°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Katsuura 69.8°F 8mi
Ichihara 64.9°F 27mi
Kisarazu 64.7°F 29mi
Chiba 65.1°F 30mi
Kimitsu 64.6°F 31mi
Futtsu 65.1°F 34mi
Honchō 64.5°F 40mi
Yokosuka 67.5°F 42mi
Kawasaki 64.9°F 44mi
Yokohama 65.5°F 45mi

* current water temperature in this city

** straight line distance from Isumi