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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

8/4
Tuesday
Patchy rain nearby
89.9°F/78.6°F
8/5
Wednesday
Sunny
92.4°F/78.5°F
8/6
Thursday
Sunny
93.7°F/77.7°F
8/7
Friday
Sunny
91.7°F/78.9°F
8/8
Saturday
Partly Cloudy
90.1°F/79.6°F
8/9
Sunday
Partly Cloudy
84.9°F/79.2°F
8/10
Monday
Partly Cloudy
86.2°F/77.8°F