September weather forecast
Le Vauclin, Martinique

September bears a close resemblance to August weather-wise, while the temperatures increase slightly - with a maximum of 29.4°C (84.9°F). Rainfall accrues at the same rate, notwithstanding the occurring decrease in wind speeds. Sea temperatures reach their highest point, promoting a surge in water-related undertakings. The sunshine and daylight hours decline marginally, hinting at the shorter days to come. Nevertheless, the UV index remains steady, emphasizing the importance of sun-protection.

Temperature

Le Vauclin's September weather reaches an average high of 29.4°C (84.9°F) and an average low of 27.3°C (81.1°F), making it the warmest month.

Heat index

The heat index for September is calculated to be a fiery hot 35°C (95°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Le Vauclin, during September, the rain falls for 21.1 days and regularly aggregates up to 81mm (3.19") of precipitation. In Le Vauclin, during the entire year, the rain falls for 251.6 days and collects up to 667mm (26.26") of precipitation.

Sea temperature

With an average sea temperature of 29.4°C (84.9°F), September is the month with the warmest seawater.
Note: Swimming, diving, and other water endeavors at temperatures between 25°C (77°F) and 29°C (84.2°F) are considered enjoyable and satisfying for extended periods without discomfort.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September, sunrise is at 05:51 and sunset at 18:14. On the last day of the month, sunrise is at 05:52 and sunset at 17:53 AST.

Sunshine

In September, the average sunshine is 10.1h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Le Vauclin. The months with the lowest UV index in Le Vauclin are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 in September translates into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.