Tokyo Sets Record with 34 Consecutive Rainy Days

Central Tokyo logged rain for a 34th straight day on September 29, 2026, the longest uninterrupted streak since the Japan Meteorological Agency (JMA) began systematic record-keeping. The streak began on August 27 with 5 mm of rain. The previous high was a 33-day run from June 27 to July 29, 2019.

Central Tokyo logs record 34 straight days of rain

The JMA’s observation site in Chiyoda Ward has tracked rainfall since 1886. A combination of approaching typhoons, a stationary autumn rain front, and a low-pressure trough has sustained the wet conditions.

Central Tokyo records unprecedented 34 consecutive days of rain

• August 27 – Rainfall begins.

Central Tokyo records unprecedented 34 consecutive days of rain

• September 21 – Heaviest single-day total of 156 mm recorded during Typhoon Dujuan.

Japan Times

• September 28 – Streak reaches 33 days, equalling the 2019 record.

The Straits Times

• September 29 – Streak extends to 34 days, setting a new record.

The Straits Times

• Around October 1 – Forecasts indicate rain may continue across eastern Japan.

Central Tokyo logs record 34 straight days of rain

• Total rainfall through September 28: 629 mm, roughly three times the September average (Kyodo News).

The Straits Times

• Year-to-date total through September 28: 1,949.5 mm, the third highest annual accumulation since 1951.

Japan Times

• Four days saw at least 100 mm of rain and six days at least 70 mm, both tying records dating back to 1875.

Japan Times

• Sunlight in central Tokyo fell to 46.8 hours for the month, just 36 % of the yearly average, with 14 days of no sunshine.

Japan Times

• Typhoon Dujuan’s September 21 deluge triggered flooding and landslides in the Kanto region, causing at least 10 fatalities.

Tokyo sets new meteorological record with 34 consecutive days of rain

Autumn tourism has weakened; visitor numbers around Lake Chuzenji in Nikko have dropped and Ryuzu Falls remain over-sprayed, delaying peak foliage. Buckwheat fields in Hokuto, Yamanashi Prefecture, are water-logged, threatening germination. The Sanbuichi Soba Association projects a 40 % reduction in buckwheat yield, driving up procurement costs for soba restaurants in Nagano.

Tokyo Sees Rain for 33 Consecutive Days

The JMA confirmed the 34-day streak and forecast continued rain mainly across eastern Japan until around October 1, attributing the persistence to the lingering autumn rain front.

Central Tokyo logs record 34 straight days of rain

Local business owners report a sharp decline in sales, while agricultural officials warn that prolonged saturation has caused root rot and unusually small buckwheat grains.

Tokyo Sees Rain for 33 Consecutive Days

The record-breaking wet spell strains urban drainage, heightens flood and landslide risk, and disrupts tourism and agriculture cycles. The elevated fatality count underscores the human cost of extreme weather in a densely populated region.

Tokyo sets new meteorological record with 34 consecutive days of rain

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Tokyo Sees Rain for 33 Consecutive Days

*All figures and statements are attributed to the Japan Meteorological Agency, Kyodo News, the Japan Times, and other cited local sources.*

Central Tokyo logs record 34 straight days of rain