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Iyo

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Iyo Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Iyo year round climate

  • Spring (March–May): Average 50–65°F, mild climate but with relatively high rainfall, especially in April. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, comfortable long pants or skirt.
  • Summer (June–August): Average 72–82°F, hot and humid with abundant rainfall. Common activities: Summer resorts, water activities. Recommended clothing: Light and breathable clothing, sun hat.
  • Autumn (September–November): Average 64–77°F, comfortable and pleasant climate, but September has relatively high rainfall. Common activities: Maple viewing, hiking. Recommended clothing: Light jacket, comfortable long pants or skirt.
  • Winter (December–February): Average 39–44°F, cold and dry with less rainfall. Common activities: Hot spring bathing, indoor activities. Recommended clothing: Warm jacket, scarf, gloves.

Iyo climatological average

Annual average temperature: approx. 60.8°F / Annual rainfall: approx. 1726 mm / Summer humidity: 70%–80% / Rainiest month: September

Iyo monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
39.6°F
28.7
February
41.7°F
50
March
50.2°F
129.1
April
59.5°F
138.2
May
65.3°F
149.3
June
72.5°F
261.4
July
81.7°F
170.7
August
82.4°F
251.1
September
77.4°F
324.6
October
64°F
128.3
November
55.6°F
71.6
December
44.1°F
23.9

Iyo weather for the next seven days

12/17
Wednesday
Sunny
51.7°F/39.2°F
12/18
Thursday
Sunny
50.7°F/39.7°F
12/19
Friday
Sunny
51.6°F/38.6°F
12/20
Saturday
Partly Cloudy
65°F/43.5°F
12/21
Sunday
Patchy rain nearby
62.3°F/51.1°F
12/22
Monday
Moderate rain
52.9°F/42.4°F
12/23
Tuesday
Sunny
48.3°F/40°F