Ōmihachiman Weather Year-Round — Best Time to Visit
Ōmihachiman, Japan has mild weather year-round. The best time to visit is August (score: 79/100). Annual average high: 18.9°C, total rainfall: 1537mm.
When is the best time to visit Ōmihachiman?
79
August is the best month to visit Ōmihachiman with a travel score of 79/100 (Good).
Expect highs of 30.8°C, 12 rain days, and 10.5 hours of daily sunshine.
View August weather details →Travel Score by Month
51
Jan
53
Feb
58
Mar
68
Apr
75
May
74
Jun
73
Jul
79
Aug
76
Sep
74
Oct
68
Nov
57
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Ōmihachiman each month?
18.9°C
Avg High
10.9°C
Avg Low
1537mm
Annual Rain
How much rain does Ōmihachiman get?
Ōmihachiman receives 1537mm of rain annually. The wettest month is typically July with 211mm, while December is the driest.
What is the weather like each month in Ōmihachiman?
January
51
7°C
Low: 0°C
12 rain days
Mixed
February
53
8°C
Low: 0°C
12 rain days
Mixed
March
58
12°C
Low: 3°C
13 rain days
Mixed
April
68
18°C
Low: 8°C
11 rain days
Good
May
75
22°C
Low: 13°C
11 rain days
Good
June
74
26°C
Low: 18°C
13 rain days
Good
July
73
29°C
Low: 22°C
14 rain days
Good
August
Best time to visit79
31°C
Low: 23°C
12 rain days
Good
September
76
27°C
Low: 20°C
12 rain days
Good
October
74
21°C
Low: 14°C
10 rain days
Good
November
68
16°C
Low: 8°C
8 rain days
Good
December
57
10°C
Low: 3°C
10 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31