September weather forecastKiroli, Guinea

September

Weather in September

September, the first month of the autumn in Kiroli, is also a moderately hot month, with an average temperature varying between 24.1°C (75.4°F) and 27.9°C (82.2°F).

Temperature

The advent of September signifies a minor shift to an average high-temperature of a still warm 27.9°C (82.2°F), aligning closely with August. Kiroli's nighttime temperatures in September reveal a minimal variation from the daytime highs, averaging at a still warm 24.1°C (75.4°F).

Heat index

In September, the average heat index is evaluated at a hot 33°C (91.4°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

In Kiroli, the average relative humidity in September is 85%.

Rainfall

In Kiroli, in September, during 24.7 rainfall days, 181mm (7.13") of precipitation is typically accumulated. Throughout the year, there are 172.9 rainfall days, and 1410mm (55.51") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of the month, sunrise is at 06:45 and sunset at 19:03. On the last day of September, in Kiroli, sunrise is at 06:43 and sunset at 18:45 GMT.

Sunshine

In September, the average sunshine is 6.5h.

UV index

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Shield from overexposure. Defense against sun-related harm is required. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

September temperatures in Kiroli vary between a high-temperature of 27.9°C (82.2°F) and a low-temperature of 24.1°C (75.4°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is evaluated at 33°C (91.4°F).

The average relative humidity in September in Kiroli, Guinea, is 85%.

In Kiroli, during September, the rain falls for 24.7 days and regularly aggregates up to 181mm (7.13") of precipitation.

The average day length in September in Kiroli, Guinea, is 12h and 11min.

In September, on the first day of the month, sunrise is at 06:45 and sunset at 19:03. On the last day of the month, in Kiroli, sunrise is at 06:43 and sunset at 18:45 GMT.

In September, the average sunshine duration in Kiroli is 6.5h.

The months with the highest UV index in Kiroli are January through June, September through December, with an average maximum UV index of 7.

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
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
Kiroli, Guinea

  • Average high temperature in September: 27.9°C

The warmest month (with the highest average high temperature) is December (31.1°C).
The month with the lowest average high temperature is August (27°C).

  • Average low temperature in September: 24.1°C

The months with the highest average low temperature are May and June (25.4°C).
The coldest month (with the lowest average low temperature) is February (22.8°C).

Average pressure in September
Kiroli, Guinea

  • Average pressure in September: 1012.8mbar

The month with the highest atmospheric pressure is July (1013.7mbar).
The months with the lowest atmospheric pressure are February and March (1010.5mbar).

Average wind speed in September
Kiroli, Guinea

  • Average wind speed in September: 9.3km/h

The windiest month (with the highest average wind speed) is August (11.5km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).

Average humidity in September
Kiroli, Guinea

  • Average humidity in September: 85%

The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (63%).

Average rainfall in September
Kiroli, Guinea

  • Average rainfall in September: 181mm

The wettest month (with the highest rainfall) is August (478mm).
The driest month (with the least rainfall) is February (1mm).

Average rainfall days in September
Kiroli, Guinea

  • Average rainfall days in September: 24.7 days

The month with the highest number of rainy days is August (28.3 days).
The month with the least rainy days is January (1 days).

Average daylight in September /
Average sunshine in September
Kiroli, Guinea

  • Average daylight in September: 12h and 12min

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 36min).

  • Average sunshine in September: 6h and 30min

The months with the most sunshine are February and March (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 30min).

Average sunshine days in September
Kiroli, Guinea

  • Average sunshine days in September: 4.3 days

The month with the most sunshine days is January (29.7 days).
The month with the least sunshine days is August (2.3 days).

Average UV index in September
Kiroli, Guinea

  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).

Average cloud cover in September
Kiroli, Guinea

  • Average cloud cover in September: 57

The month with the most cloud cover is August (Cloud cover 71).
The month with the least cloud cover is February (Cloud cover 9).

Average visibility in September
Kiroli, Guinea

  • Average visibility in September: 9km

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