September weather forecastSaltibus, Saint Lucia
September weather forecast for Saltibus, Saint Lucia: In September, the average heat index, which calculates the temperature value influenced by the moisture in the air, is computed to be 35°C (95°F). In Saltibus, during September, the rain falls for 19.5 days and regularly aggregates up to 64mm (2.52") of precipitation.
September
Weather in September
September in Saltibus accompanies a rise in temperature from 27.3°C (81.1°F) in August to 27.6°C (81.7°F). Ignoring conventional autumn, September clings to the remnants of August’s summer while inviting October’s slightly cooler profile. Even though September experiences reduced rainfall from August, it still undeniably carries the monsoon's essence. Sunny spells interchange often with cloud patches, creating a splendid weather dance. The city basks in this beautiful season turnover period.Temperature
September and October are the warmest months, with an average high-temperature of 29.5°C (85.1°F).Heat index
During September, the heat index is computed to be a fiery hot 35°C (95°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 19.5 days. Throughout September, 64mm (2.52") of precipitation is accumulated. In Saltibus, during the entire year, the rain falls for 232.4 days and collects up to 542mm (21.34") of precipitation.Daylight
In September, the average length of the day 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, in Saltibus, sunrise is at 05:53 and sunset at 17:54 AST.
Sunshine
The average sunshine in September is 10.1h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 7 in September leads to these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saltibus, Saint Lucia
- Average high temperature in September: 29.5°C
The warmest months (with the highest average high temperature) are September and October (29.5°C).
The month with the lowest average high temperature is February (26.8°C).
- Average low temperature in September: 27.6°C
The month with the highest average low temperature is September (27.6°C).
The coldest month (with the lowest average low temperature) is February (25.3°C).
Average pressure in September
Saltibus, Saint Lucia
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is June (1014.9mbar).
The month with the lowest atmospheric pressure is November (1011.3mbar).
Average wind speed in September
Saltibus, Saint Lucia
- Average wind speed in September: 18.3km/h
The windiest month (with the highest average wind speed) is February (26.9km/h).
The calmest month (with the lowest average wind speed) is September (18.3km/h).
Average humidity in September
Saltibus, Saint Lucia
- Average humidity in September: 75%
The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall in September
Saltibus, Saint Lucia
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is October (73mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days in September
Saltibus, Saint Lucia
- Average rainfall days in September: 19.5 days
The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (15 days).
Average daylight in September /
Average sunshine in September
Saltibus, Saint Lucia
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 10h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Saltibus, Saint Lucia
- Average sunshine days in September: 7.1 days
The month with the most sunshine days is March (9.1 days).
The month with the least sunshine days is July (3.6 days).
Average UV index in September
Saltibus, Saint Lucia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Saltibus, Saint Lucia
- Average cloud cover in September: 37
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is February (Cloud cover 35).
Average visibility in September
Saltibus, Saint Lucia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
