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.
Izu Oshima climatological average
Annual average temperature: approx. 63.9°F / Annual rainfall: approx. 2774 mm / Summer humidity: 70%–80% / Rainiest month: April
Izu Oshima monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (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
Izu Oshima weather for the next seven days
11/4
Tuesday
Sunny
61°F/58.4°F
11/5
Wednesday
Patchy rain nearby
64.9°F/61.1°F
11/6
Thursday
Patchy rain nearby
65.9°F/61.4°F
11/7
Friday
Patchy rain nearby
65.4°F/62.2°F
11/8
Saturday
Patchy rain nearby
62.1°F/60.7°F
11/9
Sunday
Patchy rain nearby
61.8°F/60.1°F
11/10
Monday
Patchy rain nearby
68.4°F/62.8°F
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