Spring (March–May): Average 11.6–18.6°C, mild and rainy with occasional strong winds. Common activities: seaside walks, flower viewing. Suggested clothing: light jacket, long-sleeved shirt.
Summer (June–August): Average 21.7–27.3°C, hot and humid with occasional typhoons. Common activities: swimming, surfing. Suggested clothing: light and breathable clothing, sun hat.
Autumn (September–November): Average 16.1–25.5°C, comfortable and pleasant, with the most rainfall in October. Common activities: autumn leaves viewing, sea fishing. Suggested clothing: light jacket, long-sleeved shirt.
Winter (December–February): Average 7.0–9.7°C, cold and dry with strong winds. Common activities: enjoying the seascape, savoring local cuisine. Suggested clothing: warm jacket, sweater, scarf.
Choshi climatological average
Annual average temperature: approx. 17°C / Annual rainfall: approx. 1848 mm / Summer humidity: 70%–80% / Rainiest month: October
Choshi monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
7°C
58
February
8°C
120.7
March
11.6°C
144
April
15.8°C
180.3
May
18.6°C
209.3
June
21.7°C
229
July
25.9°C
77.7
August
27.3°C
153.3
September
25.5°C
174.3
October
20.5°C
279.3
November
16.1°C
173.3
December
9.7°C
49
Choshi weather for the next seven days
12/9
Tuesday
Partly Cloudy
11°C/10.4°C
12/10
Wednesday
Partly Cloudy
13°C/10°C
12/11
Thursday
Overcast
15°C/11.7°C
12/12
Friday
Sunny
10.3°C/6°C
12/13
Saturday
Partly Cloudy
8.3°C/6°C
12/14
Sunday
Moderate rain
14.7°C/9.2°C
12/15
Monday
Partly Cloudy
12.8°C/10.7°C
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