Tokyo Records 34 Consecutive Days of Rain, Breaking More Than a Century-Old Record

Central Tokyo has recorded 34 consecutive days of rainfall, setting a new record for the longest uninterrupted rainy streak since meteorological records began in the area. The record was reached on Tuesday, September 29, after rain had continued in the Japanese capital from August 27. According to reports citing Japan’s weather agency, the latest streak surpassed the previous record of 33 consecutive rainy days, recorded in 2019. The unusually long period of rainfall has also produced exceptionally high precipitation totals. Rainfall in central Tokyo reached about 629 millimetres through September 28, approximately three times the average rainfall normally recorded during the entire month of September. The heaviest rainfall during the current streak was recorded on September 21, when 156 millimetres fell. Weather conditions across parts of Japan have been influenced by a combination of approaching typhoons, a stalled autumn rain front and a low-pressure trough. The combination has contributed to persistent rainfall across wide areas. Other parts of eastern Japan have also experienced significant rainfall. More than 30 millimetres of rain reportedly fell in a single hour in Fukui Prefecture early Tuesday, highlighting the intensity of some of the downpours. Forecasters expect rainfall to continue in parts of eastern Japan into around October 1 as the autumn rain front remains active. The new Tokyo record has attracted attention because of the unusual persistence of the rainfall. Rainy days are common during Japan’s seasonal weather patterns, but consecutive rainfall over more than a month is unusual. The record also comes during a period when Japan is closely monitoring severe weather associated with tropical systems and changing seasonal conditions. For residents and businesses, prolonged rainfall can create practical challenges, including transport disruptions, flooding risks and difficulties for outdoor activities. Authorities continue to monitor weather conditions as further rainfall is expected in parts of the country. The Tokyo record is also being closely watched by weather observers because it represents the longest recorded sequence of rainy days in central Tokyo since the beginning of the area’s meteorological records. With the rainy conditions continuing, the focus has now shifted from the record itself to how long the wet spell will last and whether additional heavy rainfall could create further disruption. For now, September 29, 2026, will remain a notable date in Tokyo’s weather history as the city recorded its 34th consecutive day of rain.