September weather forecast
Koussanar, Senegal

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Weather in September

Transitioning into September, Koussanar starts to see a slow tapering off of the rainy season. The gradual weather change prepares residents for the upcoming switch. Even though the level of precipitation drops to 87mm (3.43"), it still remains considerably high. This month also witnesses the year’s lowest average wind speed, providing smooth and calm breezy evenings. Amid the clear visibility and lesser hours of daylight, September adorns Koussanar with a scenic and charming ambience.

Temperature

With the onset of September, the average high-temperature registers at a still tropical 33.5°C (92.3°F), subtly different from August's 33°C (91.4°F). Nighttime temperatures in September average to a moderately hot 24.2°C (75.6°F).

Heat index

The heat index value for September is estimated at a blazing hot 48°C (118.4°F). Remain alert: Heat exhaustion and heat cramps are predicted. Extended effort can lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The months with the highest humidity in Koussanar are August and September, with an average relative humidity of 76%.

Rainfall

In Koussanar, Senegal, in September, during 18.8 rainfall days, 87mm (3.43") of precipitation is typically accumulated. In Koussanar, during the entire year, the rain falls for 82.3 days and collects up to 373mm (14.69") of precipitation.

Daylight

In Koussanar, the average length of the day in September is 12h and 13min.
On the first day of September, sunrise is at 06:44 and sunset at 19:07. On the last day of the month, sunrise is at 06:45 and sunset at 18:46 GMT.

Sunshine

In September, the average sunshine in Koussanar is 8.8h.

UV index

The months with the lowest UV index are January, February, July through September and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily UV index of 7 turns into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Jan 26, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How hot is it in Koussanar in September?

September temperatures vary between a high-temperature of 33.5°C (92.3°F) and a low-temperature of 24.2°C (75.6°F). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in September is estimated at 48°C (118.4°F).

What are the most humid months in Koussanar?

The months with the highest humidity in Koussanar are August and September, with an average relative humidity of 76%.

What is the average humidity in September in Koussanar?

In September, the average relative humidity in Koussanar is 76%.

How many days does it rain in September in Koussanar?

In Koussanar, during September, the rain falls for 18.8 days and regularly aggregates up to 87mm (3.43") of precipitation.

How many hours of daylight does Koussanar have in September?

In Koussanar, the average day length in September is 12h and 13min.

When is the sunrise / sunset in September in Koussanar?

In September, on the first day of the month, sunrise is at 06:44 and sunset at 19:07. On the last day of the month, in Koussanar, sunrise is at 06:45 and sunset at 18:46 GMT.

How long on average sun shines in September in Koussanar?

In September, the average sunshine duration in Koussanar is 8.8h.

What is the month with the lowest UV index in Koussanar?

The months with the lowest UV index in Koussanar are January, February, July through September and December, with an average maximum UV index of 7.

How high is the UV index in September in Koussanar?

In Koussanar, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.

Average temperature in September
Koussanar, Senegal

Average temperature in September - Koussanar, Senegal
  • Average high temperature in September: 33.5°C

The warmest month (with the highest average high temperature) is April (42.4°C).
The month with the lowest average high temperature is August (33°C).

  • Average low temperature in September: 24.2°C

The month with the highest average low temperature is June (27.9°C).
The coldest month (with the lowest average low temperature) is January (19.1°C).

Average pressure in September
Koussanar, Senegal

Average pressure in September - Koussanar, Senegal
  • Average pressure in September: 1011.5mbar

The month with the highest atmospheric pressure is January (1012.1mbar).
The month with the lowest atmospheric pressure is April (1008.5mbar).

Average wind speed in September
Koussanar, Senegal

Average wind speed in September - Koussanar, Senegal
  • Average wind speed in September: 7.8km/h

The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is September (7.8km/h).

Average humidity in September
Koussanar, Senegal

Average humidity in September - Koussanar, Senegal
  • Average humidity in September: 76%

The months with the highest relative humidity are August and September (76%).
The months with the lowest relative humidity are January and February (14%).

Average rainfall in September
Koussanar, Senegal

Average rainfall in September - Koussanar, Senegal
  • Average rainfall in September: 87mm

The wettest month (with the highest rainfall) is August (149mm).
The driest months (with the least rainfall) are January, February and December (0mm).

Average rainfall days in September
Koussanar, Senegal

Average rainfall days in September - Koussanar, Senegal
  • Average rainfall days in September: 18.8 days

The month with the highest number of rainy days is August (22.1 days).
The month with the least rainy days is January (0 days).

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

Average daylight in September / Average sunshine in September - Koussanar, Senegal
  • 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 5min

The month with the most sunshine is April (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 7h and 36min).

Average sunshine days in September
Koussanar, Senegal

Average sunshine days in September - Koussanar, Senegal
  • Average sunshine days in September: 9.1 days

The month with the most sunshine days is January (30.8 days).
The month with the least sunshine days is August (6.8 days).

Average UV index in September
Koussanar, Senegal

Average UV index in September - Koussanar, Senegal
  • Average UV index in September: 7

The months with the highest UV index are March, April, May, June, October and November (UV index 8).
The months with the lowest UV index are January, February, July, August, September and December (UV index 7).

Average cloud cover in September
Koussanar, Senegal

Average cloud cover in September - Koussanar, Senegal
  • Average cloud cover in September: 31

The month with the most cloud cover is August (Cloud cover 44).
The months with the least cloud cover are March and April (Cloud cover 6).

Average visibility in September
Koussanar, Senegal

Average visibility in September - Koussanar, Senegal
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (10km).
The months with the lowest visibility are August and September (9km).

Koussanar, Senegal

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