The average annual temperatures for Japan is 15°C/59°F.
Average annual rainfall for Japan is 1,632mm (64 inches).
August is the hottest or warmest month in Japan, with an average maximum temperate of 32°C/90°F.
January is the coolest or coldest month in Japan, with an average minimum temperate of 0°C/32°F.
July is the wettest or most rainy month in Japan, with an average rainfall of 218mm (9 inches).
January is the driest or least rainy month in Japan, with an average rainfall of 77mm (3 inches).