Transit Desk

Climate

Weather in Japan in August

Weather in Japan, August
In August, Japan sees average highs of 32.6°C (91°F) and lows of 25°C (77°F), with around 149 mm of rain.

Japan — August

Japan August
Daytime high
32.6°C (91°F)
Overnight low
25°C (77°F)
Rainfall
149 mm
Best-time rank
Off-peak

How August compares

Japan, August vs. the annual average (2025)
This month32.6°C (91°F) / 25°C (77°F) · 149 mm
Yearly average20.8°C (69°F) / 12.4°C (54°F) · 131 mm

August in Japan runs 11.8°C (21.2°F) warmer than the yearly average, and is wetter than the yearly average. Pack light, breathable clothing — expect it to be hot, and something waterproof — this is a wetter month.

Common questions

What is the weather like in Japan in August?

Average highs of 32.6°C (91°F) and lows of 25°C (77°F), with around 149 mm of rain.

Is August a good time to visit Japan?

It is an off-peak month for comfort in Japan; May, June, October tend to be more pleasant.

Updated climate normals, 2025