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 average high-temperature stands at a still tropical 34.4°C (93.9°F), showing little deviation from August's 34°C (93.2°F). During the month of September, the nighttime temperature falls to an average of 25.5°C (77.9°F).Heat index
The heat index value for September is calculated to be a burning hot 48°C (118.4°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
With an average relative humidity of 70%, September is the most humid month.Rainfall
In September, the rain falls for 18 days. Throughout September, 75mm (2.95") of precipitation is accumulated. Throughout the year, there are 68 rainfall days, and 285mm (11.22") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 06:53 and sunset at 19:17. On the last day of the month, sunrise is at 06:55 and sunset at 18:56 GMT.
Sunshine
In September, the average sunshine is 8.7h.UV index
April through June, September and October, with an average maximum UV index of 8, are months with the highest UV index. A UV Index estimate of 8 to 10 represents a very high health hazard from exposure to the Sun's UV radiation for the average person.Note: During September, 8 as the daily maximum UV index converts into the following advice:
Don't neglect protection; skin and eyes can be burned swiftly if left exposed. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the most humid month?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Sassar have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
When is the highest UV index?
How high is the UV index in September?
Average temperature in September
Sassar, Senegal
- Average high temperature in September: 34.4°C
The warmest month (with the highest average high temperature) is May (41.4°C).
The month with the lowest average high temperature is August (34°C).
- Average low temperature in September: 25.5°C
The month with the highest average low temperature is July (25.8°C).
The coldest month (with the lowest average low temperature) is January (18.3°C).
Average pressure in September
Sassar, Senegal
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is January (1013.1mbar).
The month with the lowest atmospheric pressure is April (1010.2mbar).
Average wind speed in September
Sassar, Senegal
- Average wind speed in September: 9.5km/h
The windiest month (with the highest average wind speed) is February (15.1km/h).
The calmest month (with the lowest average wind speed) is September (9.5km/h).
Average humidity in September
Sassar, Senegal
- Average humidity in September: 70%
The month with the highest relative humidity is September (70%).
The month with the lowest relative humidity is January (18%).
Average rainfall in September
Sassar, Senegal
- Average rainfall in September: 75mm
The wettest month (with the highest rainfall) is August (121mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in September
Sassar, Senegal
- Average rainfall days in September: 18 days
The month with the highest number of rainy days is August (19.8 days).
The months with the least rainy days are January and February (0.1 days).
Average daylight in September /
Average sunshine in September
Sassar, 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 48min).
Average sunshine days in September
Sassar, Senegal
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is January (30.8 days).
The month with the least sunshine days is August (10 days).
Average UV index in September
Sassar, Senegal
- Average UV index in September: 8
The months with the highest UV index are April, May, June, September and October (UV index 8).
The months with the lowest UV index are January, February, March, July, August, November and December (UV index 7).
Average cloud cover in September
Sassar, Senegal
- Average cloud cover in September: 31
The month with the most cloud cover is August (Cloud cover 40).
The month with the least cloud cover is April (Cloud cover 6).
Average visibility in September
Sassar, 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).
