September weather forecast
Kouroussa, Guinea

September

Weather in September

As September rolls around, Kouroussa starts its descent from peaking monsoon, instigating a change towards a dryer season. Total precipitation falls considerably to 126mm (4.96") from August's peak rainfall. Unique to September, both day length and sunshine hours begin to drop, signaling shorter days ahead. Although humidity remains fairly high at 87%, the overall weather pattern shows a distinct transition from heavy monsoonal climate towards a clearer and less cloudy scenario. The city appears to unwind from the rowdy rainy spell, paving the way for a calmer and gentler panorama.

Temperature

The introduction of September notes a subtle temperature variation to a still warm 29.3°C (84.7°F) from August's 28.3°C (82.9°F). During September, Kouroussa consistently records a temperature low averaging an agreeable 20.8°C (69.4°F).

Heat index

For September, the heat index is evaluated at a sweltering 37°C (98.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. 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 Kouroussa, the average relative humidity in September is 87%.

Rainfall

In Kouroussa, in September, during 25.8 rainfall days, 126mm (4.96") of precipitation is typically accumulated. Throughout the year, there are 154.5 rainfall days, and 814mm (32.05") of precipitation is accumulated.

Daylight

In Kouroussa, the average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 06:29 and sunset at 18:48. On the last day of the month, sunrise is at 06:28 and sunset at 18:30 GMT.

Sunshine

The average sunshine in September is 7.8h.

UV index

The months with the lowest UV index are July through September and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

How hot is September?
Kouroussa in September has an average high-temperature of 29.3°C (84.7°F) and an average low-temperature of 20.8°C (69.4°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 37°C (98.6°F).
What is the average humidity in September?
The average relative humidity in September in Kouroussa is 87%.
How many days does it rain in September in Kouroussa?
In Kouroussa, in September, during 25.8 rainfall days, 126mm (4.96") of precipitation is typically accumulated.
How many hours of daylight does Kouroussa have in September?
In September, the average day length is 12h and 11min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 06:29 and sunset at 18:48. On the last day of the month, sunrise is at 06:28 and sunset at 18:30 GMT.
How many hours of sunshine does Kouroussa have in September?
In Kouroussa, the average sunshine duration in September is 7.8h.
What is the month with the lowest UV index?
July through September and December, with an average maximum UV index of 6, are months with the lowest UV index.
What is the UV index intensity in September?
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Kouroussa, Guinea
  • Average high temperature in September: 29.3°C

The warmest month (with the highest average high temperature) is March (39.4°C).
The month with the lowest average high temperature is August (28.3°C).

  • Average low temperature in September: 20.8°C

The month with the highest average low temperature is April (25.3°C).
The coldest month (with the lowest average low temperature) is January (18.1°C).

Average pressure in September
Kouroussa, Guinea
  • Average pressure in September: 1012.9mbar

The month with the highest atmospheric pressure is July (1013.4mbar).
The month with the lowest atmospheric pressure is April (1009.4mbar).

Average wind speed in September
Kouroussa, Guinea
  • Average wind speed in September: 5.3km/h

The windiest month (with the highest average wind speed) is May (8.2km/h).
The calmest months (with the lowest average wind speed) are October and November (4.9km/h).

Average humidity in September
Kouroussa, Guinea
  • Average humidity in September: 87%

The month with the highest relative humidity is August (89%).
The month with the lowest relative humidity is January (19%).

Average rainfall in September
Kouroussa, Guinea
  • Average rainfall in September: 126mm

The wettest month (with the highest rainfall) is August (213mm).
The driest month (with the least rainfall) is December (0mm).

Average rainfall days in September
Kouroussa, Guinea
  • Average rainfall days in September: 25.8 days

The month with the highest number of rainy days is August (28 days).
The month with the least rainy days is December (0 days).

Average daylight in September /
Average sunshine in September
Kouroussa, Guinea
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in September: 7h and 5min

The months with the most sunshine are February and December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 0min).

Average sunshine days in September
Kouroussa, Guinea
  • Average sunshine days in September: 2.7 days

The month with the most sunshine days is December (30.9 days).
The month with the least sunshine days is July (1.9 days).

Average UV index in September
Kouroussa, Guinea
  • Average UV index in September: 6

The months with the highest UV index are March and April (UV index 8).
The months with the lowest UV index are July, August, September and December (UV index 6).

Average cloud cover in September
Kouroussa, Guinea
  • Average cloud cover in September: 49

The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is December (Cloud cover 6).

Average visibility in September
Kouroussa, Guinea
  • Average visibility in September: 7km

The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are August and September (7km).

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