The climate in Grand-Bourg during October can be summarized as hot, humid and very wet.
October is in the fall / autumn in Grand-Bourg and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 23°C (73°F) is normal.
|Daytime temperature||29.9°C 85.7°F|
|Nightly temperature||22.8°C 73°F|
|Average temperature||26.3°C 79.3°F|
|Daily sunshine||7.6 hrs|
|Avg rainfall||273 mm 10.8 ins|
|Rainy days||19 days|
|Sea temperature||28.9°C 84°F|
|Windspeed||14kph 9 mph|
On average October is the 2nd wettest month of the year in Grand-Bourg with around 273mm 10.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 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 Grand-Bourg in October 2021.
|Hottest month:||July||30.5°C 86.9°F|
|Driest month:||February||84mm 3.3ins|
|Coldest month:||January||28.2°C 82.8°F|
|Wettest month:||November||278mm 10.9ins|