Spring (March–May): Average 50–65°F, mild climate, but with relatively high rainfall, especially in April. Common activities: Hiking, flower viewing (e.g., cherry blossoms, but be mindful of rain). Recommended clothing: Light jacket, long-sleeved shirt, raincoat is essential.
Summer (June–August): Average 72–82°F, hot and humid, with relatively high rainfall. Common activities: Summer resorts, stream play (exercise caution). Recommended clothing: Light and breathable clothing, sun hat, sunglasses.
Autumn (September–November): Average 64–77°F, comfortable and pleasant climate, but September has the highest rainfall. Common activities: Hiking, maple viewing (timing needs attention). Recommended clothing: Light jacket, long-sleeved shirt, raincoat just in case.
Winter (December–February): Average 39–44°F, cold and dry, with less rainfall. Common activities: Hot spring bathing, indoor activities. Recommended clothing: Warm jacket, sweater, scarf, hat, gloves.
Akiruno City climatological average
Annual average temperature: approx. 60.8°F / Annual rainfall: approx. 1726 mm / Summer humidity: 70%–80% / Rainiest month: September
Akiruno City monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
39.6°F
28.7
February
41.7°F
50
March
50.2°F
129.1
April
59.5°F
138.2
May
65.3°F
149.3
June
72.5°F
261.4
July
81.7°F
170.7
August
82.4°F
251.1
September
77.4°F
324.6
October
64°F
128.3
November
55.6°F
71.6
December
44.1°F
23.9
Akiruno City weather for the next seven days
11/6
Thursday
Cloudy
64.4°F/53.9°F
11/7
Friday
Sunny
66.9°F/51°F
11/8
Saturday
Partly Cloudy
60.2°F/50.5°F
11/9
Sunday
Patchy rain nearby
63°F/51.3°F
11/10
Monday
Patchy rain nearby
71.7°F/50.3°F
11/11
Tuesday
Partly Cloudy
59°F/47.4°F
11/12
Wednesday
Sunny
59.6°F/46°F
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