The climate in Grand-Bourg during May can be summarized as hot, humid and wet.
May is in the spring in Grand-Bourg and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 23°C (74°F) is normal.
|Daytime temperature||30°C 85.9°F|
|Nightly temperature||23.1°C 73.5°F|
|Average temperature||26.5°C 79.7°F|
|Daily sunshine||8.3 hrs|
|Avg rainfall||169 mm 6.6 ins|
|Rainy days||16 days|
|Sea temperature||27.7°C 81.9°F|
|Windspeed||18.7kph 12 mph|
On average May is the 6th driest month of the year in Grand-Bourg with around 169mm 6.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 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 May 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|