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Izu Islands

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Izu Islands Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Izu Islands year round climate

  • Spring (March–May): Average 14.3–20.9°C, mild and comfortable climate, less rainfall, abundant sunshine. Common activities: seaside walks, flower viewing, diving. Recommended clothing: light jacket, long-sleeved shirt, light trousers.
  • Summer (June–August): Average 23.1–27.8°C, hot and dry, very little rainfall. Common activities: swimming, surfing, sunbathing, water sports. Recommended clothing: light short-sleeved clothing, shorts, swimwear, sun protection clothing.
  • Autumn (September–November): Average 24.9–20.4°C, comfortable and pleasant climate, moderate rainfall. Common activities: sea fishing, sightseeing, hiking. Recommended clothing: light jacket, long-sleeved shirt, trousers.
  • Winter (December–February): Average 14.0–14.7°C, mild and comfortable, very little rainfall. Common activities: birdwatching, hot spring bathing, seaside walks. Recommended clothing: warm jacket, long-sleeved clothing, trousers.

Izu Islands climatological average

Annual average temperature: approx. 20.7°C / Annual rainfall: approx. 99 mm / Summer humidity: 60%–70% / Rainiest month: April

Izu Islands monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
14°C
6.9
February
14.6°C
8
March
14.3°C
10.3
April
18.5°C
13.4
May
20.9°C
8.9
June
23.1°C
7.8
July
27.4°C
1.6
August
27.8°C
8.4
September
27.4°C
11.6
October
24.9°C
7.7
November
20.4°C
11.7
December
14.7°C
3.2

Izu Islands weather for the next seven days

12/17
Wednesday
Patchy rain nearby
18.8°C/15.9°C
12/18
Thursday
Moderate rain
17.3°C/15.9°C
12/19
Friday
Patchy rain nearby
17.9°C/16.4°C
12/20
Saturday
Patchy rain nearby
19.9°C/18.2°C
12/21
Sunday
Moderate rain
20.7°C/19.9°C
12/22
Monday
Moderate rain
21°C/17°C
12/23
Tuesday
Patchy rain nearby
15.6°C/14.4°C