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Okayama

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Travel Info

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Best time to visit Okayama

Data source:Meteostat
Update date:2025-09

Weather in Okayama throughout the year

  • Spring (March–May): Average 10.4–18.9°C, 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 23.4–29.3°C, 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 18.6–26.6°C, 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 4.9–6.6°C, cold and dry with low rainfall. Common activities: Hot spring experience, indoor activities. Recommended clothing: Warm coat, hat, scarf, gloves.

Weather in Okayama

Annual average temperature: approx. 17°C / Annual rainfall: approx. 1247 mm / Summer humidity: 70%–80% / Rainiest month: June

Okayama weather by month

Month
Air temperature (°C)
Precipitation (mm)
January
4.9°C
19.3
February
5.6°C
51.5
March
10.4°C
106.1
April
15.9°C
138.4
May
18.9°C
172.5
June
23.4°C
181
July
28.2°C
169.7
August
29.3°C
167.3
September
26.6°C
76.3
October
18.6°C
74.2
November
13.2°C
69.7
December
6.6°C
21.5

7-day weather forecast for Okayama

10/28
Wednesday
Sunny
17.2°C/11°C
10/29
Thursday
Sunny
18.2°C/8.2°C
10/30
Friday
Patchy rain nearby
18°C/13.7°C
10/31
Saturday
Sunny
20.7°C/11.7°C
11/1
Sunday
Sunny
19°C/9.5°C
11/2
Monday
Patchy rain nearby
18.2°C/13.3°C
11/3
Tuesday
Partly Cloudy
17.9°C/11.6°C