Shiojiri Weather Year-Round — Best Time to Visit
Shiojiri, Japan has mild weather year-round. The best time to visit is August (score: 78/100). Annual average high: 15.8°C, total rainfall: 1477mm.
When is the best time to visit Shiojiri?
78
August is the best month to visit Shiojiri with a travel score of 78/100 (Good).
Expect highs of 28.1°C, 13 rain days, and 10.3 hours of daily sunshine.
View August weather details →Travel Score by Month
51
Jan
53
Feb
56
Mar
66
Apr
74
May
73
Jun
72
Jul
78
Aug
76
Sep
68
Oct
61
Nov
53
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Shiojiri each month?
15.8°C
Avg High
6.3°C
Avg Low
1477mm
Annual Rain
How much rain does Shiojiri get?
Shiojiri receives 1477mm of rain annually. The wettest month is typically July with 180mm, while December is the driest.
What is the weather like each month in Shiojiri?
January
51
3°C
Low: -6°C
10 rain days
Mixed
February
53
4°C
Low: -5°C
10 rain days
Mixed
March
56
8°C
Low: -2°C
12 rain days
Mixed
April
66
15°C
Low: 3°C
11 rain days
Good
May
74
20°C
Low: 9°C
11 rain days
Good
June
73
23°C
Low: 14°C
14 rain days
Good
July
72
27°C
Low: 19°C
16 rain days
Good
August
Best time to visit78
28°C
Low: 19°C
13 rain days
Good
September
76
24°C
Low: 16°C
12 rain days
Good
October
68
18°C
Low: 9°C
11 rain days
Good
November
61
12°C
Low: 3°C
9 rain days
Good
December
53
6°C
Low: -3°C
10 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31