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Osumi
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Osumi Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Osumi year round climate
- Spring (March–May): 53–68°F on average, mild climate with abundant rainfall, suitable for outdoor activities. Common activities: flower viewing, hiking. Recommended clothing: light jacket, long-sleeved shirt.
- Summer (June–August): 75–84°F on average, hot and humid with more rainfall, pay attention to heatstroke and sun protection. Common activities: swimming, beach activities. Recommended clothing: light and breathable clothing, sun hat.
- Autumn (September–November): 67–79°F on average, comfortable and pleasant climate, rainfall gradually decreases, suitable for sightseeing. Common activities: visiting scenic spots, tasting local cuisine. Recommended clothing: long-sleeved shirt, light jacket.
- Winter (December–February): 44–46°F on average, low temperature, low humidity, occasional rainfall. Common activities: indoor activities, onsen experience. Recommended clothing: warm jacket, sweater, scarf.
Osumi climatological average
Annual average temperature: approx. 64.2°F / Annual rainfall: approx. 1769 mm / Summer humidity: 70%–80% / Rainiest month: June
Osumi monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
44.2°F
87
February
46°F
93.4
March
53.8°F
148.9
April
61.9°F
176
May
68°F
160.6
June
75.2°F
256.7
July
83.7°F
252.1
August
84.9°F
186.9
September
79.9°F
162.8
October
67.5°F
74.3
November
59°F
104.2
December
46.9°F
66.4
Osumi weather for the next seven days
3/14
Saturday
Partly Cloudy
52.8°F/43.9°F
3/15
Sunday
Sunny
56.2°F/42.4°F
3/16
Monday
Sunny
57.7°F/43.8°F
3/17
Tuesday
Partly Cloudy
58°F/46.1°F
3/18
Wednesday
Patchy rain nearby
58.6°F/48.1°F
3/19
Thursday
Moderate rain
58.3°F/51.5°F
3/20
Friday
Patchy rain nearby
56.8°F/49.5°F
