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Koga

Travel Info

Featured activity reviews in Koga

Best time to visit Koga

Data source:Meteostat
Update date:2025-09

Weather in Koga throughout the year

  • 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.

Weather in Koga

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

Koga weather by month

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

7-day weather forecast for Koga

10/28
Wednesday
Sunny
16.1°C/9.2°C
10/29
Thursday
Sunny
17.1°C/6.1°C
10/30
Friday
Overcast
18.6°C/13.9°C
10/31
Saturday
Sunny
20.4°C/13°C
11/1
Sunday
Sunny
18.3°C/9.5°C
11/2
Monday
Light rain
15.8°C/11.3°C
11/3
Tuesday
Partly Cloudy
17.7°C/11.4°C