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
The transition into September marks the average high-temperature at a still warm 28°C (82.4°F), differing minimally from August's 27.3°C (81.1°F). A consistent nighttime average temperature of 24.3°C (75.7°F) is maintained in Konno Town, Sierra Leone, during September.Heat index
The heat index for September is calculated to be a hot 33°C (91.4°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In September, the average relative humidity in Konno Town is 85%.Rainfall
In Konno Town, in September, during 28.8 rainfall days, 247mm (9.72") of precipitation is typically accumulated. In Konno Town, during the entire year, the rain falls for 206.1 days and collects up to 1534mm (60.39") of precipitation.Daylight
The average length of the day in September is 12h and 10min.On the first day of September in Konno Town, sunrise is at 06:43 and sunset at 18:59. On the last day of the month, sunrise is at 06:39 and sunset at 18:43 GMT.
Sunshine
In Konno Town, Sierra Leone, the average sunshine in September is 6.6h.UV index
The months with the highest UV index in Konno Town are January through June, September 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 the average person.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Konno Town in September?
What is the average humidity in September in Konno Town?
How much does it rain in Konno Town in September?
What is the average length of the day in September in Konno Town?
When is the sunrise / sunset in September in Konno Town?
How long on average sun shines in September in Konno Town?
When is the highest UV index in Konno Town?
How high is the UV index in September in Konno Town?
Average temperature in September
Konno Town, Sierra Leone
- Average high temperature in September: 28°C
The warmest month (with the highest average high temperature) is January (31.4°C).
The month with the lowest average high temperature is August (27.3°C).
- Average low temperature in September: 24.3°C
The month with the highest average low temperature is May (26.2°C).
The coldest month (with the lowest average low temperature) is August (23.9°C).
Average pressure in September
Konno Town, Sierra Leone
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is July (1013.8mbar).
The months with the lowest atmospheric pressure are February and March (1010.4mbar).
Average wind speed in September
Konno Town, Sierra Leone
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is August (12km/h).
The calmest month (with the lowest average wind speed) is November (6.8km/h).
Average humidity in September
Konno Town, Sierra Leone
- Average humidity in September: 85%
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (68%).
Average rainfall in September
Konno Town, Sierra Leone
- Average rainfall in September: 247mm
The wettest month (with the highest rainfall) is August (391mm).
The driest month (with the least rainfall) is February (1mm).
Average rainfall days in September
Konno Town, Sierra Leone
- Average rainfall days in September: 28.8 days
The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is February (0.8 days).
Average daylight in September /
Average sunshine in September
Konno Town, Sierra Leone
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 48min).
Average sunshine days in September
Konno Town, Sierra Leone
- Average sunshine days in September: 0.8 days
The month with the most sunshine days is January (29 days).
The month with the least sunshine days is August (0.5 days).
Average UV index in September
Konno Town, Sierra Leone
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in September
Konno Town, Sierra Leone
- Average cloud cover in September: 56
The month with the most cloud cover is August (Cloud cover 67).
The month with the least cloud cover is February (Cloud cover 11).
Average visibility in September
Konno Town, Sierra Leone
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
