Central Tokyo records its latest-ever day reaching 30°C on October 21
Based on October 21 afternoon and evening reports. Central Tokyo reached 30°C at 13:05 JST; this is an observation record, not a forecast.
IllustrationCentral Tokyo reached at least 30°C on October 21 afternoon, its latest-ever such day in the calendar year, reports said. Unseasonable autumn heat affected other areas, while a weather front also brought rain risks.
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Based on October 21 afternoon and evening reports. Central Tokyo reached 30°C at 13:05 JST; this is an observation record, not a forecast.
The record concerns the date, not the year’s highest temperature
Reporting at 13:25 said central Tokyo reached 30°C at 13:05, the latest date since records began. A Japanese ‘midsummer day’ means a daily maximum of at least 30°C. This record concerns how late it occurred, not a new annual temperature maximum.
Check heat and rain by location
TV Asahi and FNN reported unusual heat beyond Tokyo that evening. Some places also experienced locally intense rain associated with a low-pressure system and front. Conditions were not uniform nationwide, so both temperature and rain information should be checked for the destination.
Sources & further reading
Our own summary based on the public information below.
- ライブドアニュース：都心で最も遅い真夏日（21日13時25分） ↗Source publication date: 2026-10-21
- テレビ朝日：21日の都心の真夏日と台風の見通し ↗Source publication date: 2026-10-21
- FNN：各地の季節外れの暑さと局地的な雨 ↗Source publication date: 2026-10-21
This is a record of information available at publication. Later reports may change the details. Check the source for current weather, safety and market information.
