September weather forecast
Kiessene, Guinea

September

Weather in September

The first month of the autumn, September, is still a warm month in Kiessene, Guinea, with an average temperature fluctuating between 26.8°C (80.2°F) and 19.2°C (66.6°F).

Temperature

Kiessene experiences an average high-temperature of a still moderately hot 26.8°C (80.2°F) with the onset of September, subtly varied from August's 25.4°C (77.7°F). In Kiessene, September nights cool down to an average of 19.2°C (66.6°F).

Humidity

In Kiessene, the average relative humidity in September is 92%.

Rainfall

September is the month with the most rainfall. Rain falls for 29.1 days and accumulates 279mm (10.98") of precipitation.

Daylight

The average length of the day in September in Kiessene is 12h and 10min.
On the first day of the month, sunrise is at 06:32 and sunset at 18:48. On the last day of September, sunrise is at 06:28 and sunset at 18:31 GMT.

Sunshine

The average sunshine in September in Kiessene is 5h.

UV index

The average daily maximum UV index in September in Kiessene is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.

Frequently asked questions

What is the usual temperature for Kiessene in September?
The average high-temperature and low-temperature in Kiessene, Guinea, during September are 26.8°C (80.2°F) and 19.2°C (66.6°F) respectively. In June, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 36°C (96.8°F).
What is the average humidity in September in Kiessene?
In Kiessene, the average relative humidity in September is 92%.
What is the rainiest month in Kiessene?
September is the month with the most rainfall. Rain falls for 29.1 days and accumulates 279mm (10.98") of precipitation.
How much does it rain in Kiessene in September?
In Kiessene, in September, it is raining for 29.1 days, with typically 279mm (10.98") of accumulated precipitation.
How many hours of daylight does Kiessene have in September?
The average day length in September in Kiessene, Guinea, is 12h and 10min.
When is the sunrise / sunset in September in Kiessene?
In September, on the first day of the month, sunrise is at 06:32 and sunset at 18:48. On the last day of the month, sunrise is at 06:28 and sunset at 18:31 GMT.
How many hours of sunshine does Kiessene have in September?
In September, the average sunshine duration is 5h.
What is the UV index intensity in September in Kiessene?
The average daily maximum UV index in September in Kiessene is 6. A UV Index estimate of 6 to 7 represents a high health threat 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Kiessene, Guinea
Average temperature in September
Kiessene, Guinea
  • Average high temperature in September: 26.8°C

The warmest months (with the highest average high temperature) are February and March (34.8°C).
The month with the lowest average high temperature is August (25.4°C).

  • Average low temperature in September: 19.2°C

The month with the highest average low temperature is April (20.5°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).

Average pressure in September - Kiessene, Guinea
Average pressure in September
Kiessene, Guinea
  • Average pressure in September: 1013.5mbar

The month with the highest atmospheric pressure is July (1014.4mbar).
The month with the lowest atmospheric pressure is March (1010.7mbar).

Average wind speed in September - Kiessene, Guinea
Average wind speed in September
Kiessene, Guinea
  • Average wind speed in September: 4.4km/h

The windiest month (with the highest average wind speed) is August (5.4km/h).
The calmest months (with the lowest average wind speed) are October and November (3.9km/h).

Average humidity in September - Kiessene, Guinea
Average humidity in September
Kiessene, Guinea
  • Average humidity in September: 92%

The month with the highest relative humidity is August (94%).
The month with the lowest relative humidity is January (38%).

Average rainfall in September - Kiessene, Guinea
Average rainfall in September
Kiessene, Guinea
  • Average rainfall in September: 279mm

The wettest month (with the highest rainfall) is September (279mm).
The driest month (with the least rainfall) is December (1mm).

Average rainfall days in September - Kiessene, Guinea
Average rainfall days in September
Kiessene, Guinea
  • Average rainfall days in September: 29.1 days

The month with the highest number of rainy days is August (29.9 days).
The month with the least rainy days is December (2.1 days).

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

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).

  • Average sunshine in September: 5h and 0min

The month with the most sunshine is December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 3h and 12min).

Average sunshine days in September - Kiessene, Guinea
Average sunshine days in September
Kiessene, Guinea
  • Average sunshine days in September: 0.4 days

The month with the most sunshine days is December (28.6 days).
The month with the least sunshine days is August (0.3 days).

Average UV index in September - Kiessene, Guinea
Average UV index in September
Kiessene, Guinea
  • Average UV index in September: 6

The months with the highest UV index are February and March (UV index 7).
The months with the lowest UV index are June, July and August (UV index 5).

Average cloud cover in September - Kiessene, Guinea
Average cloud cover in September
Kiessene, Guinea
  • Average cloud cover in September: 77

The month with the most cloud cover is August (Cloud cover 87).
The month with the least cloud cover is December (Cloud cover 10).

Average visibility in September - Kiessene, Guinea
Average visibility in September
Kiessene, Guinea
  • Average visibility in September: 5km

The months with the highest visibility are January and December (10km).
The months with the lowest visibility are July, August and September (5km).

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