The climate in Shimabara during December can be summarized as cool and reasonably dry.
December is in the winter in Shimabara and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 3°C (38°F) is normal.
|Daytime temperature||12.1°C 53.7°F|
|Nightly temperature||3.1°C 37.5°F|
|Average temperature||7.6°C 45.6°F|
|Daily sunshine||4.2 hrs|
|Avg rainfall||58 mm 2.3 ins|
|Rainy days||17 days|
|Sea temperature||20.7°C 69.2°F|
|Windspeed||6.7kph 4 mph|
On average December is the driest month of the year in Shimabara with around 58mm 2.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.2 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Shimabara in December 2022.
|Hottest month:||August||31.6°C 88.9°F|
|Driest month:||December||58mm 2.3ins|
|Coldest month:||January||9.3°C 48.7°F|
|Wettest month:||July||395mm 15.6ins|