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Shiojiri
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Shiojiri Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Shiojiri year round climate
- Spring (March–May): 5.3–15°C on average, rainy and humid, with temperatures rising slowly. Snow is possible in March, and it gradually warms up starting in April. Common activities: Picnics, flower viewing (certain species). Recommended clothing: Warm jacket, comfortable long pants, rain gear.
- Summer (June–August): 19.4–25.5°C on average, hot and rainy, with July being the peak of the rainy season and higher humidity. Common activities: Summer resort visits, stream activities (safety precautions are necessary). Recommended clothing: Breathable and light clothing, rain gear, sun hat.
- Autumn (September–November): 8.4–22.5°C on average, pleasant and comfortable, with rainfall gradually decreasing, but early morning and evening temperature differences should be noted. Common activities: Hiking, viewing autumn leaves (in some areas). Recommended clothing: Comfortable long-sleeved clothing, light jacket, comfortable shoes.
- Winter (December–February): 0.1–2.7°C on average, cold and dry, with occasional snowfall. Common activities: Hot spring experiences, skiing (requires travel to nearby areas). Recommended clothing: Warm, thick jacket, hat, scarf, gloves.
Shiojiri climatological average
Annual average temperature: approx. 12.4°C / Annual rainfall: approx. 1689 mm / Summer humidity: 70%–80% / Rainiest month: July
Shiojiri monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
0.1°C
62.6
February
0.6°C
106.8
March
5.3°C
142
April
11.6°C
175.6
May
15°C
196.1
June
19.4°C
216
July
24°C
224.5
August
25.5°C
103
September
22.5°C
163.9
October
13.7°C
121
November
8.4°C
119.7
December
2.7°C
58.6
Shiojiri weather for the next seven days
2/2
Monday
Light freezing rain
1.5°C/-7.4°C
2/3
Tuesday
Patchy moderate snow
1.4°C/-7.6°C
2/4
Wednesday
Sunny
6.4°C/-7.8°C
2/5
Thursday
Partly Cloudy
6.8°C/-5°C
2/6
Friday
Patchy rain nearby
5.8°C/-4.1°C
2/7
Saturday
Light freezing rain
-0.8°C/-6.9°C
2/8
Sunday
Moderate or heavy snow showers
-4.7°C/-11.7°C
