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Iwamuro
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Iwamuro Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Iwamuro year round climate
- Spring (March–May): Average 7.5–17.2°C, mild climate but with relatively high rainfall, especially in May. Common activities: picnicking, flower viewing. Recommended clothing: light jacket, long-sleeved shirts.
- Summer (June–August): Average 22.0–28.4°C, hot and humid, with relatively high rainfall, especially in July. Common activities: escaping the heat, playing in streams. Recommended clothing: light and breathable clothing, sun hat.
- Autumn (September–November): Average 11.9–24.9°C, pleasant and comfortable climate, but with relatively high rainfall, especially in November. Common activities: viewing autumn leaves, hiking. Recommended clothing: comfortable jacket, long-sleeved shirts.
- Winter (December–February): Average 3.2–5.2°C, cold and dry, with relatively high rainfall, the rainiest month being December. Common activities: soaking in hot springs, indoor activities. Recommended clothing: warm jacket, hat, scarf, gloves.
Iwamuro climatological average
Annual average temperature: approx. 15°C / Annual rainfall: approx. 1981 mm / Summer humidity: 70%–80% / Rainiest month: December
Iwamuro monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
3.2°C
150
February
3.6°C
111.3
March
7.5°C
113.7
April
13°C
79.3
May
17.2°C
128.7
June
22°C
137.7
July
26.4°C
258
August
28.4°C
108.3
September
24.9°C
202.7
October
17.1°C
147.7
November
11.9°C
217.3
December
5.2°C
326.3
Iwamuro weather for the next seven days
1/2
Friday
Heavy snow
2°C/-1.7°C
1/3
Saturday
Moderate rain
4.4°C/-1.1°C
1/4
Sunday
Patchy rain nearby
7°C/2.5°C
1/5
Monday
Heavy rain
6°C/1.1°C
1/6
Tuesday
Patchy rain nearby
5.7°C/1.1°C
1/7
Wednesday
Patchy rain nearby
6.4°C/-0.1°C
1/8
Thursday
Blizzard
-0.4°C/-1.3°C
