Okayama Weather Year-Round — Best Time to Visit
Okayama, Japan has mild weather year-round. The best time to visit is August (score: 83/100). Annual average high: 20°C, total rainfall: 1243mm.
When is the best time to visit Okayama?
83
August is the best month to visit Okayama with a travel score of 83/100 (Excellent).
Expect highs of 31.7°C, 10 rain days, and 10.7 hours of daily sunshine.
View August weather details →Travel Score by Month
65
Jan
65
Feb
68
Mar
75
Apr
82
May
78
Jun
77
Jul
83
Aug
80
Sep
80
Oct
74
Nov
68
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Okayama each month?
20°C
Avg High
11.6°C
Avg Low
1243mm
Annual Rain
How much rain does Okayama get?
Okayama receives 1243mm of rain annually. The wettest month is typically July with 185mm, while January is the driest.
What is the weather like each month in Okayama?
January
65
9°C
Low: 1°C
5 rain days
Good
February
65
10°C
Low: 1°C
6 rain days
Good
March
68
14°C
Low: 4°C
9 rain days
Good
April
75
19°C
Low: 9°C
9 rain days
Good
May
82
23°C
Low: 14°C
10 rain days
Excellent
June
78
26°C
Low: 19°C
12 rain days
Good
July
77
30°C
Low: 23°C
13 rain days
Good
August
Best time to visit83
32°C
Low: 24°C
10 rain days
Excellent
September
80
28°C
Low: 20°C
10 rain days
Excellent
October
80
22°C
Low: 14°C
8 rain days
Excellent
November
74
17°C
Low: 8°C
6 rain days
Good
December
68
11°C
Low: 3°C
5 rain days
Good
Compare Okayama
Popular comparisons:
🎉Planning a Trip to Japan?
Check public holidays and long weekends before you book.
What cities are near Okayama?
Data based on 1994–2024 averages · Last updated: 2024-12-31