Japan Weekly Forecast: Rain Early and Late, Drier Midweek Stretch

Oct. 14 (Wed): Rain Fades in Osaka and Sapporo, Drier South

On Wednesday, Oct. 14, Osaka and Sapporo see rain while Tokyo and Fukuoka stay drier. Background guidance notes a cold front across Osaka, Tokyo and Fukuoka and a low-pressure system moving northeast from Sapporo. Osaka's rain clears to sun, 25C high, 60% rain chance. Sapporo's rain gives way to cloud, 21C high, 80% rain chance. Tokyo stays mostly cloudy with some sun, 28C high, 40% rain chance; Fukuoka stays mostly sunny, 22C high, 20% rain chance.

Oct. 15-17 (Thu-Sat): Mild and Mostly Dry Overall

From Thursday, Oct. 15, through Saturday, Oct. 17, all four cities stay mostly dry, with one cloudier day Friday, Oct. 16. High pressure sits near Osaka, Tokyo and Fukuoka Thursday, Oct. 15, with a cold front over Sapporo that day; no significant system is noted nearby Osaka, Tokyo or Sapporo Friday or Saturday, while Fukuoka's ridge moves west Saturday, Oct. 17. Fukuoka's high climbs 23C to 28C, up to 30% rain chance. Osaka's high reaches 24-27C and Tokyo's 22-25C, both 20-40% rain chance; Sapporo stays coolest near 15-17C, 20-30% rain chance.

Oct. 18-20 (Sun-Tue): Rain Risk Returns for Three Cities

From Sunday, Oct. 18, through Tuesday, Oct. 20, rain chances climb for Osaka, Fukuoka and Sapporo while Tokyo stays drier. High pressure holds over Sapporo and moves east from Tokyo, with a stationary front over Osaka and Fukuoka, all Sunday, Oct. 18. Osaka and Fukuoka reach 27-30C highs that day before a 60% rain chance by Tuesday, Oct. 20; Fukuoka's risk starts Monday, Oct. 19. Sapporo cools from 17C Sunday to a 60% rain chance at 22C Monday, then 18C Tuesday. Tokyo stays mostly cloudy, 24-28C highs, at most 40% rain chance throughout.