Sennan Weather Year-Round — Best Time to Visit
Sennan, Japan has mild weather year-round. The best time to visit is August (score: 80/100). Annual average high: 19.4°C, total rainfall: 1595mm.
When is the best time to visit Sennan?
80
August is the best month to visit Sennan with a travel score of 80/100 (Good).
Expect highs of 30.6°C, 11 rain days, and 10.9 hours of daily sunshine.
View August weather details →Travel Score by Month
57
Jan
60
Feb
62
Mar
71
Apr
78
May
73
Jun
76
Jul
80
Aug
76
Sep
76
Oct
70
Nov
62
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Sennan each month?
19.4°C
Avg High
12.4°C
Avg Low
1595mm
Annual Rain
How much rain does Sennan get?
Sennan 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 Sennan?
January
57
9°C
Low: 2°C
10 rain days
Mixed
February
60
10°C
Low: 2°C
10 rain days
Mixed
March
62
13°C
Low: 5°C
12 rain days
Good
April
71
18°C
Low: 10°C
10 rain days
Good
May
78
22°C
Low: 14°C
10 rain days
Good
June
73
25°C
Low: 19°C
13 rain days
Good
July
76
29°C
Low: 23°C
13 rain days
Good
August
Best time to visit80
31°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
62
11°C
Low: 5°C
10 rain days
Good
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Data based on 1994–2024 averages · Last updated: 2024-12-31