September weather forecast
Anse La Raye, Saint Lucia

The first month of the autumn, September, is a tropical month in Anse La Raye, Saint Lucia, with an average temperature ranging between max 30.3°C (86.5°F) and min 27°C (80.6°F).

Temperature

With an average high-temperature of 30.3°C (86.5°F) and an average low-temperature of 27°C (80.6°F), September is the warmest month.

Heat index

The average heat index in September is appraised at a very hot 37°C (98.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, clothing, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

The months with the lowest humidity in Anse La Raye are January through March and September, with an average relative humidity of 73%.

Rainfall

In Anse La Raye, Saint Lucia, during September, the rain falls for 20.3 days and regularly aggregates up to 63mm (2.48") of precipitation. Throughout the year, there are 255.2 rainfall days, and 560mm (22.05") of precipitation is accumulated.

Sea temperature

September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Anse La Raye.
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Anse La Raye, the average length of the day in September is 12h and 12min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:15. On the last day of September, sunrise is at 05:53 and sunset at 17:54 AST.

Sunshine

In September, the average sunshine in Anse La Raye is 9.6h.

UV index

The months with the highest UV index in Anse La Raye, Saint Lucia, are January through May, July through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.