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
Transitioning from August to September, Kirima observes an average high-temperature of a still moderately hot 28.1°C (82.6°F), differing subtly from the previous month. Throughout September, Kirima's nights experience a slight temperature dip to a still moderately hot 24.4°C (75.9°F).Heat index
In September, the average heat index is evaluated at a hot 33°C (91.4°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.For clarity, heat index numbers account for light winds and areas under shade. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
The average relative humidity in September is 85%.Rainfall
In Kirima, in September, it is raining for 28.6 days, with typically 220mm (8.66") of accumulated precipitation. In Kirima, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation.Daylight
The average length of the day in September is 12h and 10min.On the first day of the month, sunrise is at 06:44 and sunset at 19:00. On the last day of September, sunrise is at 06:41 and sunset at 18:44 GMT.
Sunshine
In September, the average sunshine is 6.7h.UV index
January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, an average UV index of 7 transforms into the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Kirima have in September?
What is the month with the highest UV index?
How high is the UV index in September in Kirima?
Average temperature in September
Kirima, Sierra Leone
- Average high temperature in September: 28.1°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: 24.4°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
Kirima, 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
Kirima, Sierra Leone
- Average wind speed in September: 9.5km/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
Kirima, 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
Kirima, Sierra Leone
- Average rainfall in September: 220mm
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
Kirima, Sierra Leone
- Average rainfall days in September: 28.6 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
Kirima, 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
Kirima, 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
Kirima, 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
Kirima, Sierra Leone
- Average cloud cover in September: 55
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
Kirima, 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).
