Tokyo Weather in August – Average Temperature and Rainfall

High
31.8°
Low
24.4°
Rainfall
140 mm
Rainy season
14d
max
38.8°
min
15.9°

August

Early
32.5°
32.9 mm
Mid
31.4°
58.0 mm
Late
31.6°
48.9 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 00:00–21:00, totalling roughly 176.3 mm.
How hot is it in Tokyo today?
Between 21°C and 26°C, with a felt maximum of 30°C.
What is the weather in Tokyo tomorrow?
Tomorrow: partly cloudy, 23–30°C, with a 94% chance of rain.

Tokyo