Tokyo Weather in May – Average Temperature and Rainfall

High
23.1°
Low
14.4°
Rainfall
154 mm
Rainy season
12d
max
30.6°
min
5.5°

May

Early
22.0°
49.1 mm
Mid
23.1°
52.1 mm
Late
24.3°
53.0 mm

Summary

The climate figures for Tokyo are averaged from 2016–2025 observations (10 years). Annual rainfall averages about 1,592 mm.

The rainy season runs March–October. The wettest month is September with 207.8 mm across 16 rain days; the driest is February at just 50.8 mm.

The hottest month is August (average high 31.8°C) and the coolest is January (9.2°C).

The most comfortable time to visit Tokyo is February — less rain and milder heat.

Monthly averages

Common questions

Will it rain in Tokyo today?
Yes. Rain is expected around 00:00–14:00, totalling roughly 21.4 mm.
How hot is it in Tokyo today?
Between 11°C and 17°C, with a felt maximum of 17°C.
What is the weather in Tokyo tomorrow?
Tomorrow: light drizzle, 14–23°C, with a 6% chance of rain.

Tokyo