Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September's onset sees an average high-temperature of a still hot 32.6°C (90.7°F), exhibiting a slight fluctuation from the previous month. Léné's September nights cool down to an average low-temperature of 25.7°C (78.3°F).Heat index
The heat index for September is appraised at a scorching 44°C (111.2°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.The standards for the heat index are set for locations in shade and under light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
The most humid month is September, with an average relative humidity of 74%.Rainfall
In Léné, in September, during 15.3 rainfall days, 72mm (2.83") of precipitation is typically accumulated. In Léné, during the entire year, the rain falls for 55.9 days and collects up to 220mm (8.66") of precipitation.Daylight
In September, the average length of the day is 12h and 13min.On the first day of September in Léné, sunrise is at 06:56 and sunset at 19:20. On the last day of the month, sunrise is at 06:57 and sunset at 18:58 GMT.
Sunshine
In Léné, the average sunshine in September is 8.7h.UV index
January through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 7 in September transforms into the following instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September in Léné?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Léné have in September?
What is the month with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Léné, Senegal
- Average high temperature in September: 32.6°C
The warmest month (with the highest average high temperature) is November (35.2°C).
The month with the lowest average high temperature is August (31.8°C).
- Average low temperature in September: 25.7°C
The month with the highest average low temperature is October (26.2°C).
The coldest month (with the lowest average low temperature) is February (19.3°C).
Average pressure in September
Léné, Senegal
- Average pressure in September: 1011.9mbar
The month with the highest atmospheric pressure is January (1013.4mbar).
The month with the lowest atmospheric pressure is April (1011mbar).
Average wind speed in September
Léné, Senegal
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is April (19.4km/h).
The calmest month (with the lowest average wind speed) is September (11.3km/h).
Average humidity in September
Léné, Senegal
- Average humidity in September: 74%
The month with the highest relative humidity is September (74%).
The month with the lowest relative humidity is January (29%).
Average rainfall in September
Léné, Senegal
- Average rainfall in September: 72mm
The wettest month (with the highest rainfall) is August (90mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).
Average rainfall days in September
Léné, Senegal
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is February (0 days).
Average daylight in September /
Average sunshine in September
Léné, Senegal
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is May (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 7h and 54min).
Average sunshine days in September
Léné, Senegal
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is January (30.8 days).
The month with the least sunshine days is August (10.9 days).
Average UV index in September
Léné, Senegal
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and November (UV index 7).
The month with the lowest UV index is December (UV index 6).
Average cloud cover in September
Léné, Senegal
- Average cloud cover in September: 31
The month with the most cloud cover is August (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 6).
Average visibility in September
Léné, Senegal
- 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).
