Iya Valley Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Iya Valley year round climate
Spring (March–May): Average 10.9–19.8°C, mild climate but with relatively high rainfall, especially in April. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, long-sleeved clothing, rain gear.
Summer (June–August): Average 24.0–29.4°C, hot and humid, frequent rainfall, with the most rain in June. Common activities: Playing in streams, visiting summer resorts. Recommended clothing: Light and breathable clothing, sun hat, rain gear.
Autumn (September–November): Average 19.5–27.2°C, comfortable and pleasant climate, rainfall gradually decreasing. Common activities: Autumn leaves viewing, hiking. Recommended clothing: Light jacket, long-sleeved clothing.
Winter (December–February): Average 5.1–7.3°C, low temperature, relatively dry, low rainfall. Common activities: Hot spring experience, enjoying winter scenery. Recommended clothing: Warm jacket, hat, scarf, gloves.
Iya Valley climatological average
Annual average temperature: approx. 17.4°C / Annual rainfall: approx. 1621 mm / Summer humidity: 70%–80% / Rainiest month: June
Iya Valley monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
5.1°C
27
February
6.4°C
72.3
March
10.9°C
131.3
April
16.7°C
148.7
May
19.8°C
181.3
June
24°C
241.7
July
28.6°C
221.7
August
29.4°C
211.7
September
27.2°C
149.3
October
19.5°C
113
November
14.3°C
94.3
December
7.3°C
28.7
Iya Valley weather for the next seven days
3/1
Sunday
Sunny
16.9°C/7°C
3/2
Monday
Patchy rain nearby
15.7°C/8.7°C
3/3
Tuesday
Heavy rain
10.4°C/9.3°C
3/4
Wednesday
Patchy rain nearby
14.7°C/7.2°C
3/5
Thursday
Sunny
13.8°C/5.5°C
3/6
Friday
Patchy rain nearby
13.8°C/5.4°C
3/7
Saturday
Moderate rain
11.3°C/6.1°C
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