Spring (March–May): Average 9.4–18.0°C, mild climate with gradually increasing rainfall, but overall comfortable. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt.
Summer (June–August): Average 22.6–28.3°C, hot and humid, abundant rainfall, especially in July. Common activities: Summer resort, indoor activities. Recommended clothing: Light and breathable clothing, rain gear.
Autumn (September–November): Average 17.5–25.0°C, comfortable climate, decreasing rainfall, gradually decreasing temperature. Common activities: Outdoor excursions, maple viewing (in some areas). Recommended clothing: Light jacket, long-sleeved shirt.
Winter (December–February): Average 5.0–6.9°C, cold and dry, less rainfall. Common activities: Hot springs, indoor activities. Recommended clothing: Warm clothing, thick coat.
Unnan climatological average
Annual average temperature: approx. 16°C / Annual rainfall: approx. 1696 mm / Summer humidity: 70%–80% / Rainiest month: July
Unnan monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
5°C
94.2
February
5.3°C
92.1
March
9.4°C
116.3
April
14.2°C
137.7
May
18°C
130.5
June
22.6°C
158.1
July
27.1°C
273.9
August
28.3°C
209.1
September
25°C
154
October
17.5°C
98.6
November
12.6°C
134.2
December
6.9°C
97.5
Unnan weather for the next seven days
11/2
Sunday
Partly Cloudy
16°C/9.5°C
11/3
Monday
Sunny
16.4°C/8.7°C
11/4
Tuesday
Partly Cloudy
19.1°C/8.3°C
11/5
Wednesday
Patchy rain nearby
16.1°C/11.5°C
11/6
Thursday
Patchy rain nearby
18.4°C/12.7°C
11/7
Friday
Partly Cloudy
18.1°C/10.3°C
11/8
Saturday
Partly Cloudy
19.2°C/11°C
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