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Adachi Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Adachi year round climate

  • Spring (March–May): Average 11.1–19.3°C, mild climate but with relatively high rainfall, especially in March and April. Common activities: Flower viewing, hiking. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
  • Summer (June–August): Average 23.1–28.6°C, hot and humid, with abundant rainfall from June to September. Common activities: Swimming, outdoor summer activities. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 14.2–25.9°C, comfortable and pleasant climate, with relatively high rainfall in September. Common activities: Maple leaf viewing, outdoor excursions. Recommended clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): Average 5.9–8.3°C, cold and dry, with low rainfall. Common activities: Indoor activities, onsen (hot spring) bathing. Recommended clothing: Warm jacket, sweater, scarf, hat.

Adachi climatological average

Annual average temperature: approx. 17°C / Annual rainfall: approx. 1648 mm / Summer humidity: 70%–80% / Rainiest month: June

Adachi monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
5.9°C
25
February
6.8°C
63.7
March
11.1°C
148.3
April
16.2°C
143.7
May
19.3°C
186.3
June
23.1°C
253.7
July
28.3°C
156.7
August
28.6°C
206.3
September
25.9°C
217
October
18.9°C
146.7
November
14.2°C
75.7
December
8.3°C
25.8

Adachi weather for the next seven days

9/19
Saturday
Overcast
27.9°C/21.7°C
9/20
Sunday
Light rain shower
23.3°C/21.3°C
9/21
Monday
Light rain shower
22.2°C/21.1°C
9/22
Tuesday
Patchy rain nearby
29.4°C/22.1°C
9/23
Wednesday
Overcast
25.2°C/21.8°C
9/24
Thursday
Patchy rain nearby
27°C/21.4°C
9/25
Friday
Cloudy
28.1°C/21.8°C