The climate in Grand-Bourg during August can be summarized as hot, humid and very wet.
August is in the summer in Grand-Bourg and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 24°C (75°F) is normal.
|Daytime temperature||30.8°C 87.4°F|
|Nightly temperature||23.7°C 74.6°F|
|Average temperature||27.2°C 81°F|
|Daily sunshine||8.3 hrs|
|Avg rainfall||219 mm 8.6 ins|
|Rainy days||19 days|
|Sea temperature||28.7°C 83.6°F|
|Windspeed||19.1kph 12 mph|
On average August is the 4th wettest month of the year in Grand-Bourg with around 219mm 8.6 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 8.3 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 August 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|