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

With its high average temperature of 29.4°C (84.9°F) and a low of 27.3°C (81.1°F), September is regarded as the warmest month.

Heat index

In September, the heat index is computed to be a sweltering 35°C (95°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Le Vauclin, the average relative humidity in September is 75%.

Rainfall

In Le Vauclin, in September, during 21.1 rainfall days, 81mm (3.19") of precipitation is typically accumulated. Throughout the year, there are 251.6 rainfall days, and 667mm (26.26") of precipitation is accumulated.

Sea temperature

September is the month with the warmest seawater, with an average sea temperature of 29.4°C (84.9°F).
Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

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

Sunshine

The average sunshine in September is 10.1h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September translates into these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.