Hannan Weather Year-Round — Best Time to Visit
Hannan, Japan has mild weather year-round. The best time to visit is August (score: 80/100). Annual average high: 19.1°C, total rainfall: 1595mm.
When is the best time to visit Hannan?
80
August is the best month to visit Hannan with a travel score of 80/100 (Good).
Expect highs of 30.3°C, 11 rain days, and 10.9 hours of daily sunshine.
View August weather details →Travel Score by Month
57
Jan
59
Feb
62
Mar
71
Apr
78
May
73
Jun
76
Jul
80
Aug
76
Sep
76
Oct
70
Nov
61
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Hannan each month?
19.1°C
Avg High
12.2°C
Avg Low
1595mm
Annual Rain
How much rain does Hannan get?
Hannan receives 1595mm of rain annually. The wettest month is typically June with 215mm, while December is the driest.
What is the weather like each month in Hannan?
January
57
8°C
Low: 2°C
10 rain days
Mixed
February
59
9°C
Low: 2°C
10 rain days
Mixed
March
62
13°C
Low: 5°C
12 rain days
Good
April
71
18°C
Low: 9°C
10 rain days
Good
May
78
22°C
Low: 14°C
10 rain days
Good
June
73
25°C
Low: 18°C
13 rain days
Good
July
76
29°C
Low: 23°C
13 rain days
Good
August
Best time to visit80
30°C
Low: 24°C
11 rain days
Good
September
76
27°C
Low: 21°C
12 rain days
Good
October
76
22°C
Low: 15°C
10 rain days
Good
November
70
16°C
Low: 9°C
8 rain days
Good
December
61
11°C
Low: 4°C
10 rain days
Good
Compare Hannan
Popular comparisons:
🎉Planning a Trip to Japan?
Check public holidays and long weekends before you book.
What cities are near Hannan?
Data based on 1994–2024 averages · Last updated: 2024-12-31