The temperature was measured at 13 locations in Japan, at Abashiri, Nemuro, Suttsu, Yamagata, Ishinomaki, Fushiki, Choshi, Sakai, Hamada, Hikone, Tadotsu, Naze, and Ishigakijima.
The source does not provide an exact publication date. Date given here is the day of data access.
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Average number of days with a temperature above 30 degrees Celsius Japan 2015-2024
In 2024, areas across Japan measured **** days on average with a temperature of ** degrees Celsius and above, the highest number of days within this range in the country's recorded weather history. Most areas on the main island Honshu have a humid subtropical climate that is characterized by warm and rainy summers and fairly mild winters. The source stated that the average number of days with ** degrees and above increased significantly from **** days in 1910.
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JMA. (May 7, 2025). Annual average number of days with a temperature of 30 degrees Celsius or higher in Japan from 2015 to 2024 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1192739/japan-average-number-days-30-degrees-celsius/
JMA. "Annual average number of days with a temperature of 30 degrees Celsius or higher in Japan from 2015 to 2024." Chart. May 7, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1192739/japan-average-number-days-30-degrees-celsius/
JMA. (2025). Annual average number of days with a temperature of 30 degrees Celsius or higher in Japan from 2015 to 2024. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1192739/japan-average-number-days-30-degrees-celsius/
JMA. "Annual Average Number of Days with a Temperature of 30 Degrees Celsius or Higher in Japan from 2015 to 2024." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 7 May 2025, /statistics/1192739/japan-average-number-days-30-degrees-celsius/
JMA, Annual average number of days with a temperature of 30 degrees Celsius or higher in Japan from 2015 to 2024 ÌÇÐÄÆƽâ°æ, /statistics/1192739/japan-average-number-days-30-degrees-celsius/ (last visited July 20, 2026)
Annual average number of days with a temperature of 30 degrees Celsius or higher in Japan from 2015 to 2024 [Graph], JMA, May 7, 2025. [Online]. Available: /statistics/1192739/japan-average-number-days-30-degrees-celsius/
