The mercury rose to dangerously high levels in Japan on Sunday, with weather authorities issuing heatstroke alerts in 19 prefectures nationwide, including this year’s first for central Tokyo and Kanagawa.

With climate change driving up temperatures across the globe, Japan will experience a heat wave through mid-July on a “level only seen once in a decade,” the Meteorological Agency said on June 30.

On Sunday, high temperatures in the mid- to high-30s were observed across a wide swath of the country, including 38.3 degrees Celsius in Kuwana, Mie Prefecture, 37.9 C in Toyota, Aichi Prefecture, and 37.7 C in Tajimi, Gifu Prefecture, Hamamatsu, Shizuoka Prefecture and Kofu, Yamanashi Prefecture, according to agency data.