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Okayama

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Okayama Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Okayama year round climate

  • Spring (March–May): Average 50–66°F, mild climate but with relatively high rainfall, especially in April. Common activities: Flower viewing, hiking, visiting Okayama Castle. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
  • Summer (June–August): Average 74–84°F, hot and humid with abundant rainfall. Common activities: Swimming at the beach, outdoor activities (note sun protection and heatstroke prevention). Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 65–79°F, comfortable and pleasant climate with reduced rainfall. Common activities: Maple viewing, outdoor sports, enjoying local cuisine. Recommended clothing: Long-sleeved shirt, light jacket.
  • Winter (December–February): Average 40–43°F, cold and dry with low rainfall. Common activities: Hot spring experience, indoor activities. Recommended clothing: Warm coat, hat, scarf, gloves.

Okayama climatological average

Annual average temperature: approx. 62.6°F / Annual rainfall: approx. 1247 mm / Summer humidity: 70%–80% / Rainiest month: June

Okayama monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
40.8°F
19.3
February
42.1°F
51.5
March
50.7°F
106.1
April
60.6°F
138.4
May
66°F
172.5
June
74.1°F
181
July
82.8°F
169.7
August
84.7°F
167.3
September
79.9°F
76.3
October
65.5°F
74.2
November
55.8°F
69.7
December
43.9°F
21.5

Okayama weather for the next seven days

12/17
Wednesday
Patchy rain nearby
53.1°F/44.3°F
12/18
Thursday
Sunny
53.7°F/44°F
12/19
Friday
Sunny
54.7°F/43.9°F
12/20
Saturday
Sunny
58.8°F/46.5°F
12/21
Sunday
Patchy rain nearby
62.1°F/51.9°F
12/22
Monday
Patchy rain nearby
53.4°F/49.5°F
12/23
Tuesday
Patchy rain nearby
52.1°F/46.9°F