September weather forecastKoure, Senegal

September

Weather in September

The first month of the autumn, September, is still a tropical month in Koure, Senegal, with an average temperature varying between 34.5°C (94.1°F) and 26.4°C (79.5°F).

Temperature

Koure experiences a transition to a still tropical 34.5°C (94.1°F) in average high-temperatures with the arrival of September, not greatly differing from August's 33.6°C (92.5°F). Koure in September experiences a low-temperature average of 26.4°C (79.5°F).

Heat index

In September, the heat index is calculated to be a blazing hot 47°C (116.6°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.
Bear in mind that the heat index values are determined for shaded areas and light breezes. 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 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. 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

In Koure, the average relative humidity in September is 67%.

Rainfall

In Koure, Senegal, in September, during 13.5 rainfall days, 61mm (2.4") of precipitation is typically accumulated. Throughout the year, in Koure, there are 47.2 rainfall days, and 182mm (7.17") of precipitation is accumulated.

Daylight

In Koure, the average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 06:53 and sunset at 19:17. On the last day of September, in Koure, sunrise is at 06:55 and sunset at 18:55 GMT.

Sunshine

The average sunshine in September is 9.1h.

UV index

September and October, with an average maximum UV index of 8, are months with the highest UV index in Koure. A UV Index estimate of 8 to 10 represents a very high health hazard from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 8 in September transforms into the following instructions:
Being careless can result in skin and eye damage. Always take the necessary safety measures. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

During September, Koure experiences an average high-temperature of 34.5°C (94.1°F) and a low-temperature of 26.4°C (79.5°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is calculated to be 47°C (116.6°F).

In September, the average relative humidity is 67%.

In Koure, Senegal, during September, the rain falls for 13.5 days and regularly aggregates up to 61mm (2.4") of precipitation.

The average day length in September in Koure, Senegal, 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 18:55 GMT.

The average sunshine duration in September in Koure, Senegal, is 9.1h.

The months with the highest UV index in Koure are September and October, with an average maximum UV index of 8.

In September, the average daily maximum UV index in Koure is 8. A UV Index reading of 8 to 10 represents a very high hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Koure, Senegal

  • Average high temperature in September: 34.5°C

The warmest month (with the highest average high temperature) is October (37.2°C).
The month with the lowest average high temperature is January (32.8°C).

  • Average low temperature in September: 26.4°C

The months with the highest average low temperature are September and October (26.4°C).
The coldest month (with the lowest average low temperature) is January (18.2°C).

Average pressure in September
Koure, Senegal

  • Average pressure in September: 1011.6mbar

The month with the highest atmospheric pressure is January (1013.8mbar).
The months with the lowest atmospheric pressure are April and May (1010.7mbar).

Average wind speed in September
Koure, Senegal

  • Average wind speed in September: 12.2km/h

The windiest month (with the highest average wind speed) is April (18.1km/h).
The calmest month (with the lowest average wind speed) is September (12.2km/h).

Average humidity in September
Koure, Senegal

  • Average humidity in September: 67%

The month with the highest relative humidity is August (68%).
The month with the lowest relative humidity is January (22%).

Average rainfall in September
Koure, Senegal

  • Average rainfall in September: 61mm

The wettest month (with the highest rainfall) is August (68mm).
The driest months (with the least rainfall) are January, February, May and December (0mm).

Average rainfall days in September
Koure, Senegal

  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is August (13.6 days).
The month with the least rainy days is January (0.2 days).

Average daylight in September /
Average sunshine in September
Koure, Senegal

  • Average daylight in September: 12h and 12min

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 12min).

  • Average sunshine in September: 9h and 6min

The month with the most sunshine is May (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 8h and 48min).

Average sunshine days in September
Koure, Senegal

  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (14.7 days).

Average UV index in September
Koure, Senegal

  • Average UV index in September: 8

The months with the highest UV index are September and October (UV index 8).
The month with the lowest UV index is December (UV index 6).

Average cloud cover in September
Koure, Senegal

  • Average cloud cover in September: 25

The month with the most cloud cover is August (Cloud cover 32).
The months with the least cloud cover are April and May (Cloud cover 6).

Average visibility in September
Koure, 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).