City Average Daytime High Average Nighttime Low Rainy/Snowy Days Early Month Late Month Sunny Days Early Month Late Month Sapporo 26 C (79 F) 19 C (66 F) 25% 30% 50% 50% Tokyo 31 C (88 F) 24 C (75 F) 25% 25% 55% 50% Takayama 31 C (88 F) 20 C (68 F) 35% 35% 60% 60% Osaka 33 C (91 F) 25 C (77 F) 20% 25% 70% 70% Fukuoka 32 C (90 F) 25 C (77 F)