Spring (March–May): Average 6.2–15.5°C, climate transitions from cold to warm, with relatively high rainfall, especially in April and May. Common activities: Flower viewing, spring outings. Recommended clothing: Light jacket, comfortable long pants or skirt.
Summer (June–August): Average 20.0–24.9°C, warm and humid climate with abundant rainfall. Common activities: Summer resort, outdoor activities (note sun protection and rain gear). Recommended clothing: Light and breathable clothing, rain gear.
Autumn (September–November): Average 9.4–22.2°C, pleasant and comfortable climate with gradually decreasing rainfall. Common activities: Hiking, maple viewing (depending on altitude). Recommended clothing: Light jacket, long-sleeved shirt.
Winter (December–February): Average 1.0–3.2°C, cold and dry climate with less rainfall. Common activities: Hot spring experience, indoor activities. Recommended clothing: Warm clothing, thick jacket, scarf and gloves.
Itamuro climatological average
Annual average temperature: approx. 12.7°C / Annual rainfall: approx. 1391 mm / Summer humidity: 70%–80% / Rainiest month: July
Itamuro monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
1°C
34.9
February
1.8°C
42.6
March
6.2°C
110.2
April
12.4°C
111.5
May
15.5°C
177.8
June
20°C
179.6
July
24.9°C
184.9
August
24.9°C
156
September
22.2°C
180.2
October
14.5°C
113.7
November
9.4°C
78.4
December
3.2°C
21.4
Itamuro weather for the next seven days
12/17
Wednesday
Patchy rain nearby
6.4°C/-0.8°C
12/18
Thursday
Sunny
4.9°C/-3.1°C
12/19
Friday
Sunny
7.4°C/-3.1°C
12/20
Saturday
Sunny
11.1°C/0.2°C
12/21
Sunday
Patchy rain nearby
12.9°C/4.4°C
12/22
Monday
Patchy rain nearby
5.2°C/1.1°C
12/23
Tuesday
Moderate rain
4.1°C/0.2°C
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