Spring (March–May): Average 12.8–21.0°C, mild climate but with relatively high rainfall, especially in March and April. Common activities: Flower viewing (specify flower type if applicable), countryside walks. Recommended clothing: Light jacket, long-sleeved shirts, rain gear essential.
Summer (June–August): Average 24.5–29.9°C, hot and humid, rainfall concentrated in June and July. Common activities: Swimming, visiting summer resorts. Recommended clothing: Light and breathable clothing, sun hat, sunglasses.
Autumn (September–November): Average 20.4–15.1°C, pleasant and comfortable climate, less rainfall. Common activities: Hiking, autumn leaves viewing (specify if maple leaves are prominent). Recommended clothing: Comfortable long-sleeved shirts, light jacket.
Winter (December–February): Average 7.6–8.3°C, cold and dry, low rainfall. Common activities: Hot spring visits, indoor activities. Recommended clothing: Warm coat, sweater, scarf, hat.
Tamanashi climatological average
Annual average temperature: approx. 18.3°C / Annual rainfall: approx. 2079 mm / Summer humidity: 70%–80% / Rainiest month: July
Tamanashi monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
6.6°C
56.5
February
8.3°C
92.7
March
12.8°C
226.3
April
17.7°C
215.9
May
21°C
274
June
24.5°C
369.8
July
28.6°C
371.5
August
29.9°C
165.2
September
27.6°C
92.3
October
20.4°C
96
November
15.1°C
81.8
December
7.6°C
37.8
Tamanashi weather for the next seven days
10/28
Tuesday
Sunny
17.9°C/12.2°C
10/29
Wednesday
Sunny
20.3°C/10.5°C
10/30
Thursday
Patchy rain nearby
21.4°C/12.1°C
10/31
Friday
Moderate rain
16.8°C/13.8°C
11/1
Saturday
Patchy rain nearby
20.9°C/13.1°C
11/2
Sunday
Partly Cloudy
19.7°C/14.7°C
11/3
Monday
Sunny
21°C/12.7°C
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