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
Weather in September
Temperature
The transition into September reveals an average high-temperature of a still moderately hot 29.5°C (85.1°F), mirroring a close resemblance to August. The nighttime temperature in September experiences a minor dip, averaging a still moderately hot 26.1°C (79°F).Heat index
In September, the average heat index is appraised at a fiery hot 36°C (96.8°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
August and September, with an average relative humidity of 80%, are the most humid months.Rainfall
In September, the rain falls for 17.6 days. Throughout September, 121mm (4.76") of precipitation is accumulated. In Lewna, during the entire year, the rain falls for 77 days and collects up to 427mm (16.81") of precipitation.Daylight
The average length of the day in September is 12h and 12min.On the first day of September in Lewna, The Gambia, sunrise is at 06:54 and sunset at 19:16. On the last day of the month, sunrise is at 06:55 and sunset at 18:56 GMT.
Sunshine
In Lewna, The Gambia, the average sunshine in September is 8.2h.UV index
January, April through December, with an average maximum UV index of 7, are months with the highest UV index in Lewna. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 7 during September translates into the following directions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
How hot is it in Lewna in September?
What are the most humid months in Lewna?
What is the average humidity in September in Lewna?
How many days does it rain in September in Lewna?
What is the average length of the day in September in Lewna?
What time are sunrise and sunset in September in Lewna?
How long on average sun shines in September in Lewna?
What are the months with the highest UV index in Lewna?
What is the UV index intensity in September in Lewna?
Average temperature in September
Lewna, The Gambia
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is November (31.8°C).
The month with the lowest average high temperature is May (28.1°C).
- Average low temperature in September: 26.1°C
The month with the highest average low temperature is October (26.9°C).
The coldest month (with the lowest average low temperature) is February (21.6°C).
Average pressure in September
Lewna, The Gambia
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is July (1012.6mbar).
The month with the lowest atmospheric pressure is April (1010.3mbar).
Average wind speed in September
Lewna, The Gambia
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is February (18.6km/h).
The calmest month (with the lowest average wind speed) is September (12.8km/h).
Average humidity in September
Lewna, The Gambia
- Average humidity in September: 80%
The months with the highest relative humidity are August and September (80%).
The month with the lowest relative humidity is January (39%).
Average rainfall in September
Lewna, The Gambia
- Average rainfall in September: 121mm
The wettest month (with the highest rainfall) is August (177mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in September
Lewna, The Gambia
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is August (21.6 days).
The month with the least rainy days is February (0.2 days).
Average daylight in September /
Average sunshine in September
Lewna, The Gambia
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are March, April and May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 18min).
Average sunshine days in September
Lewna, The Gambia
- Average sunshine days in September: 10.4 days
The months with the most sunshine days are January and December (30.7 days).
The month with the least sunshine days is August (7.3 days).
Average UV index in September
Lewna, The Gambia
- Average UV index in September: 7
The months with the highest UV index are January, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are February and March (UV index 6).
Average cloud cover in September
Lewna, The Gambia
- Average cloud cover in September: 37
The month with the most cloud cover is August (Cloud cover 50).
The month with the least cloud cover is April (Cloud cover 6).
Average visibility in September
Lewna, The Gambia
- 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).
Lewna, The Gambia
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