Get Exclusive App Deals

Izu Oshima

Izu Oshima 1
Travel guide
3
Travel guide
Izu Oshima 2
Izu Oshima 3
3
More destinations

Best time to visit Izu Oshima

Data source:Meteostat
Last updated:2025-09

Weather in Izu Oshima throughout the year

  • Spring (March–May): Average 53–65°F, mild climate but abundant rainfall, especially in April. Common activities: flower viewing, hiking (rain gear recommended). Suggested clothing: light jacket, comfortable long pants, rain gear.
  • Summer (June–August): Average 71–81°F, hot and humid, occasional showers. Common activities: swimming, surfing, mountain climbing (sun protection recommended). Suggested clothing: light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 67–60°F, comfortable and pleasant climate, decreasing rainfall. Common activities: viewing autumn leaves, hiking, stargazing. Suggested clothing: light jacket or cardigan, long pants.
  • Winter (December–February): Average 46–51°F, cold and dry, little rainfall. Common activities: onsen bathing, birdwatching, ocean viewing. Suggested clothing: warm jacket, beanie, gloves, scarf.

Weather in Izu Oshima

Annual average temperature: approx. 63.9°F / Annual rainfall: approx. 2774 mm / Summer humidity: 70%–80% / Rainiest month: April

Izu Oshima weather by month

Month
Temperature (°F)
Rainfall (mm)
January
46.9°F
57
February
47.7°F
206.3
March
54°F
274.7
April
61°F
351.3
May
65.8°F
271.3
June
71.8°F
335
July
79.9°F
167
August
81.7°F
299
September
78.1°F
295.7
October
67.5°F
265
November
61°F
196.3
December
51.1°F
55.7

7-day weather forecast for Izu Oshima

11/15
Sunday
Light rain
67.5°F/62.3°F
11/16
Monday
Patchy rain nearby
65.5°F/63.4°F
11/17
Tuesday
Light drizzle
62.9°F/59.7°F
11/18
Wednesday
Patchy rain nearby
68°F/60°F
11/19
Thursday
Sunny
67.4°F/56.5°F
11/20
Friday
Sunny
55.7°F/53.9°F
11/21
Saturday
Sunny
58.3°F/54.4°F