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
10/17
Friday
Partly Cloudy
24.6°C/17.2°C
10/18
Saturday
Moderate rain
24.8°C/18.3°C
10/19
Sunday
Patchy rain nearby
20.5°C/16.4°C
10/20
Monday
Patchy rain nearby
22°C/15.4°C
10/21
Tuesday
Partly Cloudy
18.8°C/15°C
10/22
Wednesday
Overcast
17.9°C/14.3°C
10/23
Thursday
Sunny
19.8°C/11.7°C
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