Spring (March–May): Average 52–67°F, mild climate but with relatively high rainfall, especially in April. Common activities: Picnics, flower viewing (such as cherry blossoms and azaleas, but be mindful of rain), seaside walks. Recommended clothing: Light jacket, long-sleeved shirt, and rain gear for rainy days.
Summer (June–August): Average 74–86°F, hot and humid, with the most rainfall in July. Common activities: Swimming, surfing, and other water sports. Recommended clothing: Light and breathable clothing, sun hat, sunglasses, and sunscreen.
Autumn (September–November): Average 57–81°F, pleasant climate, but occasional typhoons. Common activities: Maple leaf viewing (in some areas), seaside walks, and hiking. Recommended clothing: Comfortable long-sleeved shirts, light jackets, and adjust clothing according to weather changes.
Winter (December–February): Average 42–45°F, cold and dry with less rainfall. Common activities: Onsen (hot spring) bathing and enjoying winter seascapes. Recommended clothing: Warm jacket, sweater, scarf, and gloves.
Minami Boso climatological average
Annual average temperature: approx. 63.7°F / Annual rainfall: approx. 1529 mm / Summer humidity: 70%–80% / Rainiest month: July
Minami Boso monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
42.4°F
33.7
February
44.1°F
73.7
March
52.2°F
115
April
61.7°F
193.3
May
67.6°F
165.7
June
74.7°F
217
July
82.9°F
308
August
86°F
83.7
September
81.1°F
128.3
October
67.5°F
72
November
57.9°F
111
December
45.1°F
28.3
Minami Boso weather for the next seven days
11/6
Thursday
Patchy rain nearby
68.9°F/58.6°F
11/7
Friday
Partly Cloudy
65°F/56.6°F
11/8
Saturday
Sunny
62.3°F/54.6°F
11/9
Sunday
Heavy rain
59.1°F/57.6°F
11/10
Monday
Patchy rain nearby
63.6°F/54.6°F
11/11
Tuesday
Sunny
59.4°F/52°F
11/12
Wednesday
Sunny
63°F/55.3°F
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