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Yamaguchi City

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Yamaguchi City Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Yamaguchi City year round climate

  • Spring (March–May): Average 10.6–18.9°C, mild climate but with relatively high rainfall, especially in April. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, comfortable long-sleeved shirt.
  • Summer (June–August): Average 23.1–28.8°C, hot and humid with relatively high rainfall, most rainfall in July. Common activities: Swimming at the beach, visiting summer resorts. Recommended clothing: Light and breathable clothing, sun hat.
  • Autumn (September–November): Average 18.4–25.9°C, comfortable and pleasant climate with gradually decreasing rainfall. Common activities: Mountain hiking, viewing autumn leaves. Recommended clothing: Light jacket or long-sleeved shirt.
  • Winter (December–February): Average 4.8–6.2°C, cold and dry with low rainfall. Common activities: Hot spring experience, indoor activities. Recommended clothing: Warm coat, sweater, scarf.

Yamaguchi City climatological average

Annual average temperature: approx. 17°C / Annual rainfall: approx. 1974 mm / Summer humidity: 70%–80% / Rainiest month: July

Yamaguchi City monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
4.8°C
54.8
February
6°C
102.3
March
10.6°C
136.3
April
15.7°C
212.4
May
18.9°C
144.4
June
23.1°C
235.5
July
27.6°C
394.4
August
28.8°C
160.6
September
25.9°C
258.5
October
18.4°C
91.1
November
13.2°C
136.4
December
6.2°C
48.1

Yamaguchi City weather for the next seven days

4/11
Saturday
Cloudy
20.2°C/10.6°C
4/12
Sunday
Overcast
21.1°C/9.7°C
4/13
Monday
Sunny
22.3°C/10.2°C
4/14
Tuesday
Overcast
19.3°C/13.9°C
4/15
Wednesday
Moderate rain
15.1°C/14°C
4/16
Thursday
Patchy rain nearby
18.9°C/12.9°C
4/17
Friday
Patchy rain nearby
15.7°C/14.3°C