When planning a visit to Tokyo Prefecture in Japan, it helps to know that temperatures typically range from 10°C (50°F) in January up to 32°C (90°F) during the peak of August. Our detailed climate overview is based on data from Tokyo, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In Tokyo Prefecture, the months of April, May, June and October bring pleasant weather, with average temperatures ranging between 19°C (66°F) and 26°C (79°F).
The peak of the heat usually falls in July and August.
When it comes to rainfall, Tokyo Prefecture sees significant variations throughout the year. October tends to be the wettest, receiving 210 mm (8.3 in) of rain, while December is much drier with just 62 mm (2.4 in). Travelers should note that the rainy season falls during September and October, bringing substantial precipitation ranging from 195 mm (7.7 in) to 210 mm (8.3 in) monthly.
Visitors hoping to maximize their time in the sun should consider planning their trip for January, when daylight hours are at their peak.
