September weather forecastBatkanu, Sierra Leone
September
Weather in September
September brings a decrease in rainfall, dropping to 261mm (10.28") from August's peak of 332mm (13.07"). However, the local atmosphere remains predominantly overcast, keeping the location under the spell of the rainy season. The moderate land breezes slightly leverage the warm climatic situation. The working harmonization of moisture, temperature, and wind create a coherently balanced September atmosphere in Batkanu.Temperature
The transition into September reveals an average high-temperature of a still warm 28.9°C (84°F), mirroring a close resemblance to August. Batkanu's average low-temperature during September nights is observed to be a pleasant 21.8°C (71.2°F).Heat index
The average heat index in September is estimated at a torrid 37°C (98.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In September, the average relative humidity is 92%.Rainfall
In Batkanu, in September, it is raining for 28.6 days, with typically 261mm (10.28") of accumulated precipitation. Throughout the year, there are 225.8 rainfall days, and 1471mm (57.91") of precipitation is accumulated.Daylight
In Batkanu, the average length of the day in September is 12h and 10min.On the first day of the month, sunrise is at 06:40 and sunset at 18:58. On the last day of September, sunrise is at 06:38 and sunset at 18:40 GMT.
Sunshine
The average sunshine in September is 5.2h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Batkanu, Sierra Leone
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is March (38.4°C).
The month with the lowest average high temperature is August (27.6°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is April (24°C).
The coldest month (with the lowest average low temperature) is December (19.7°C).
Average pressure in September
Batkanu, Sierra Leone
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is July (1014.1mbar).
The months with the lowest atmospheric pressure are February and March (1010.5mbar).
Average wind speed in September
Batkanu, Sierra Leone
- Average wind speed in September: 4.7km/h
The windiest month (with the highest average wind speed) is April (5.8km/h).
The calmest month (with the lowest average wind speed) is November (3.3km/h).
Average humidity in September
Batkanu, Sierra Leone
- Average humidity in September: 92%
The month with the highest relative humidity is August (93%).
The months with the lowest relative humidity are January and February (58%).
Average rainfall in September
Batkanu, Sierra Leone
- Average rainfall in September: 261mm
The wettest month (with the highest rainfall) is August (332mm).
The driest month (with the least rainfall) is December (3mm).
Average rainfall days in September
Batkanu, 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 January (2.2 days).
Average daylight in September /
Average sunshine in September
Batkanu, Sierra Leone
- Average daylight in September: 12h and 12min
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: 5h and 12min
The month with the most sunshine is January (Average sunshine: 9h and 48min).
The month with the least sunshine is August (Average sunshine: 3h and 42min).
Average sunshine days in September
Batkanu, Sierra Leone
- Average sunshine days in September: 0.7 days
The month with the most sunshine days is January (27.4 days).
The month with the least sunshine days is July (0.5 days).
Average UV index in September
Batkanu, Sierra Leone
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).
Average cloud cover in September
Batkanu, Sierra Leone
- Average cloud cover in September: 76
The month with the most cloud cover is August (Cloud cover 83).
The months with the least cloud cover are January and February (Cloud cover 15).
Average visibility in September
Batkanu, Sierra Leone
- Average visibility in September: 5km
The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (5km).





