Weekly Weather Forecast: Oct 10-16, Rain Midweek, Cooler Finish

Sunny Skies Open the Week Nationwide

Mostly sunny, dry conditions prevail nationwide on October 10 and 11, though temperatures vary widely from south to north. Tokyo stays sunny with highs of 25-26°C and lows of 16°C, while Osaka is similarly sunny but warmer, with highs of 27-29°C and lows of 18-19°C. Fukuoka holds the warmest readings, sunny with some cloud at 28°C both days and lows near 21°C, while Sapporo is coolest with sun and occasional cloud, highs of 22-23°C and lows of 12-13°C. Rain chances stay low throughout, ranging from 20% in Tokyo and Osaka to 30-40% in Fukuoka.

Midweek Rain Chances Rise in All Four Cities

Rain chances climb around midweek, though drivers differ by city. Tokyo stays mostly dry through the 13th (25-26°C, 20-30%) before a cold front brings cloudy skies and a 40% chance on the 14th (27°C/18°C). Osaka is calm into the 13th (28°C, 20-30%) as a low moves past, then turns cloudy with brief rain and a 60% chance on the 14th under a cold front (26°C/20°C). Fukuoka, under a trough on the 12th-13th, sees chances rise to 60% near 29-30°C, then cools to 26°C on the 14th under a cold front at 40%. Sapporo's high drops from 20°C on the 12th to 19°C on the 14th as a warm front, cold front, and nearby low pass in turn, reaching 60% by the 14th.

Tokyo and Sapporo Stay Cool as West Rebounds

Tokyo and Sapporo turn cooler and cloudier through October 15-16, while Osaka and Fukuoka rebound to sunnier, milder weather. Tokyo stays cloudy with highs of 22-24°C and lows of 18-19°C, and rain chances holding near 40%. Sapporo is cooler still, cloudy with highs of 17-18°C and lows of 9-10°C, rain chances rising from 40% to 60% by the 16th. Osaka and Fukuoka both return to sunny skies with occasional cloud, highs of 26-27°C and lows of 17-18°C, and rain chances easing back to 20%.