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Brace yourselves for more high temperatures – Tokyo is experiencing an early heatwave ahead of the rainy season

It seems summer is arriving earlier and earlier each year, with Tokyo and several other parts of Japan already experiencing warmer-than-usual temperatures in mid-May.
This past weekend was particularly toasty, with the capital getting its first day of summer-like temperatures: the city recorded a high of 30.2 degrees Celsius on Sunday May 17. According to Weather News, that’s roughly equivalent to the average maximum temperature seen in mid-July, going by data for the past 30 years. Sunday also marked Tokyo’s earliest 30-degree day in the past five years, arriving three days earlier than it did in 2025.
The current sunny conditions are being caused by a high-pressure system covering Japan, resulting in temperatures above 30 degrees Celsius across parts of Tohoku and Kyushu, too. According to the weather network, this heat spell is expected to continue through Tuesday May 19, with officials advising people to take precautions against heatstroke.
To keep up-to-date on the latest weather conditions, check the Weather News website.
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