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Koga Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Koga year round climate

  • Spring (March–May): Average 8.8–17.6°C, mild climate but with relatively high rainfall, especially in April. Common activities: enjoying nature, flower viewing. Recommended clothing: light jacket, long-sleeved shirt, and umbrella.
  • Summer (June–August): Average 22.3–28.2°C, hot and humid with frequent rainfall, especially in July and August. Common activities: visiting summer resorts, playing in streams. Recommended clothing: breathable short-sleeved clothing, shorts, sandals, and umbrella.
  • Autumn (September–November): Average 17.3–25.4°C, pleasant and comfortable climate with gradually decreasing rainfall. Common activities: hiking, outings. Recommended clothing: long-sleeved shirt, light jacket.
  • Winter (December–February): Average 3.6–5.8°C, cold and dry with low rainfall. Common activities: hot springs, enjoying winter scenery. Recommended clothing: warm coat, sweater, scarf, hat.

Koga climatological average

Annual average temperature: approx. 15.6°C / Annual rainfall: approx. 1652 mm / Summer humidity: 70%–80% / Rainiest month: August

Koga monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
3.6°C
29.7
February
4.6°C
46.9
March
8.8°C
135.2
April
14.8°C
136.8
May
17.6°C
171.5
June
22.3°C
268.1
July
27.4°C
156.1
August
28.2°C
336.7
September
25.4°C
162.6
October
17.3°C
106.1
November
11.9°C
84.8
December
5.8°C
18

Koga weather for the next seven days

4/22
Wednesday
Patchy rain nearby
17.9°C/6.3°C
4/23
Thursday
Heavy rain
14.1°C/11°C
4/24
Friday
Patchy rain nearby
19.5°C/9.5°C
4/25
Saturday
Patchy rain nearby
17.1°C/9.3°C
4/26
Sunday
Patchy rain nearby
14.2°C/12.6°C
4/27
Monday
Patchy rain nearby
19.7°C/11.9°C
4/28
Tuesday
Patchy rain nearby
21.2°C/11.7°C