What is the weather like in Hiroshima vs Karuizawa in August?

In August, Hiroshima averages 34°C high / 26°C low with about 210 mm of rain; Karuizawa averages 26°C high / 17°C low with about 195 mm.

Hiroshima vs Karuizawa in August

Karuizawa is the better pick in August — 75 vs 56 on SeasonMap's comfort score. Karuizawa is hot, soaked, clean air, while Hiroshima is sweltering, soaked, clean air.

Hiroshima vs Karuizawa — August climate, side by side

	🇯🇵 Hiroshima	🇯🇵 Karuizawa
Comfort score	56/100 (D)	75/100 (B)
Feels-like high	39°C	29°C
Avg high / low	34° / 26°	26° / 17°
Rainfall	210 mm	195 mm
Rainy days	14	22
Humidity	81%	85%
Air quality (AQI)	41	46

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Hiroshima vs Karuizawa in August — FAQ

Is August better in Hiroshima or Karuizawa?: Karuizawa is the better pick in August — 75 vs 56 on SeasonMap's comfort score. Karuizawa is hot, soaked, clean air, while Hiroshima is sweltering, soaked, clean air.
What is the weather like in Hiroshima vs Karuizawa in August?: In August, Hiroshima averages 34°C high / 26°C low with about 210 mm of rain; Karuizawa averages 26°C high / 17°C low with about 195 mm.