Spring (March–May): Average 50–64°F, mild climate with gradually increasing rainfall. March sees cherry blossoms in full bloom, making it an ideal time for viewing them. Common activities: Cherry blossom viewing, hiking, mountain climbing. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 71–81°F, hot and humid, with the most rainfall in June; be prepared for rain. Common activities: Visiting summer resorts, outdoor swimming. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 55–77°F, comfortable and pleasant climate, with more rainfall in September. Common activities: Maple leaf viewing, hiking, onsen trips. Recommended clothing: Comfortable long-sleeved shirts, light jackets, warm clothing.
Winter (December–February): Average 39–44°F, cold and dry with less rainfall. Common activities: Skiing, onsen bathing. Recommended clothing: Warm jacket, beanie, scarf, gloves.
Asama climatological average
Annual average temperature: approx. 60.8°F / Annual rainfall: approx. 1457 mm / Summer humidity: 70%–80% / Rainiest month: June
Asama monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
39.7°F
42.9
February
42.1°F
71.6
March
50.2°F
119.9
April
59.4°F
142.7
May
64.6°F
183.8
June
71.6°F
216.1
July
80.6°F
108.4
August
81.5°F
98.8
September
77°F
204.1
October
64.8°F
131.2
November
55.9°F
93.1
December
44.1°F
45.2
Asama weather for the next seven days
4/5
Sunday
Patchy rain nearby
74°F/62.7°F
4/6
Monday
Patchy rain nearby
71.7°F/58.5°F
4/7
Tuesday
Heavy rain
62.5°F/47.5°F
4/8
Wednesday
Sunny
63.7°F/45.9°F
4/9
Thursday
Patchy rain nearby
66.6°F/54.1°F
4/10
Friday
Patchy rain nearby
66.2°F/59.6°F
4/11
Saturday
Patchy rain nearby
66°F/60.4°F
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