September weather forecastGoundam, Mali
September
Weather in September
September initiates the gradual withdrawal of summer, ushering in slightly cooler temperatures compared to August. This month experiences a steady decline in rainfall and humidity, which marks the approaching dry season. Though daylight hours decrease, the sun's intensity remains invariably high. A constant breeze sweeps the city, maintaining an airy atmosphere. Average temperatures in September fluctuate from a high of 39.6°C (103.3°F) to a low of 30.5°C (86.9°F).Temperature
Goundam's weather in September indicates an average high-temperature of a still sweltering 39.6°C (103.3°F), nearly consistent with the 38.4°C (101.1°F) of August. Goundam's nighttime temperature in September drops to an average of 30.5°C (86.9°F).Humidity
In Goundam, the average relative humidity in September is 29%.Rainfall
In Goundam, in September, during 5.5 rainfall days, 13mm (0.51") of precipitation is typically accumulated. In Goundam, Mali, during the entire year, the rain falls for 33.9 days and collects up to 85mm (3.35") of precipitation.Daylight
The average length of the day in September is 12h and 13min.On the first day of September in Goundam, Mali, sunrise is at 06:01 and sunset at 18:27. On the last day of the month, sunrise is at 06:04 and sunset at 18:04 GMT.
Sunshine
In September, the average sunshine is 10.4h.UV index
April through July and September, with an average maximum UV index of 9, are months with the highest UV index in Goundam. A UV Index estimate of 8 to 10 represents a very high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 9 suggests this advice:
Be proactive in protecting yourself; skin and eyes can be harmed if left unprotected. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Regularly apply and reapply a broad-spectrum sunscreen with a minimum SPF 30 every two hours, or straight after swimming or an outdoor activity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Goundam, Mali
- Average high temperature in September: 39.6°C
The warmest month (with the highest average high temperature) is June (42.6°C).
The month with the lowest average high temperature is January (29.7°C).
- Average low temperature in September: 30.5°C
The month with the highest average low temperature is June (32.3°C).
The coldest month (with the lowest average low temperature) is January (15.4°C).
Average pressure in September
Goundam, Mali
- Average pressure in September: 1009.6mbar
The month with the highest atmospheric pressure is January (1015.1mbar).
The month with the lowest atmospheric pressure is May (1007.8mbar).
Average wind speed in September
Goundam, Mali
- Average wind speed in September: 13.1km/h
The windiest months (with the highest average wind speed) are July and December (17km/h).
The calmest month (with the lowest average wind speed) is September (13.1km/h).
Average humidity in September
Goundam, Mali
- Average humidity in September: 29%
The month with the highest relative humidity is August (38%).
The month with the lowest relative humidity is April (11%).
Average rainfall in September
Goundam, Mali
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is August (45mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).
Average rainfall days in September
Goundam, Mali
- Average rainfall days in September: 5.5 days
The month with the highest number of rainy days is August (9.8 days).
The months with the least rainy days are November and December (0.1 days).
Average daylight in September /
Average sunshine in September
Goundam, Mali
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 10h and 24min
The month with the most sunshine is May (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).
Average sunshine days in September
Goundam, Mali
- Average sunshine days in September: 22.7 days
The month with the most sunshine days is December (31 days).
The month with the least sunshine days is August (19.3 days).
Average UV index in September
Goundam, Mali
- Average UV index in September: 9
The months with the highest UV index are April, May, June, July and September (UV index 9).
The months with the lowest UV index are January and December (UV index 6).
Average cloud cover in September
Goundam, Mali
- Average cloud cover in September: 12
The month with the most cloud cover is August (Cloud cover 20).
The months with the least cloud cover are March, April and October (Cloud cover 7).
Average visibility in September
Goundam, Mali
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
