September weather forecastVassérédou, Guinea

September

Weather in September

September, the first month of the autumn in Vassérédou, is also a moderately hot month, with temperature in the range of an average low of 19.2°C (66.6°F) and an average high of 26.8°C (80.2°F).

Temperature

September's onset records a minor alteration in the average high-temperature to a still warm 26.8°C (80.2°F) from August's 25.4°C (77.7°F). Throughout September, Vassérédou experiences a low-temperature average of 19.2°C (66.6°F).

Humidity

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

In Vassérédou, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:28 and sunset at 18:45. On the last day of September, in Vassérédou, sunrise is at 06:25 and sunset at 18:28 GMT.

Sunshine

The average sunshine in September is 5h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

The high-temperature, in September, in Vassérédou, records 26.8°C (80.2°F), while the low-temperature is 19.2°C (66.6°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in June is calculated to be 36°C (96.8°F).

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

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

In Vassérédou, in September, during 29.1 rainfall days, 279mm (10.98") of precipitation is typically accumulated.

The average day length in September is 12h and 10min.

On the first day of September, sunrise is at 06:28 and sunset at 18:45. On the last day of the month, sunrise is at 06:25 and sunset at 18:28 GMT.

The average sunshine duration in September is 5h.

In Vassérédou, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a 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
Vassérédou, 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
Vassérédou, 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
Vassérédou, 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
Vassérédou, 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
Vassérédou, 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
Vassérédou, 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
Vassérédou, Guinea

  • Average daylight in September: 12h and 12min

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
Vassérédou, 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
Vassérédou, 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
Vassérédou, 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
Vassérédou, 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).