September weather forecastGao, Mali
September
Weather in September
In September, Gao, Mali transitions from the high rainfall of August to drier conditions. Estimated temperature highs measure 39.3°C (102.7°F), presenting a marginal increase from the prior month. As the month progresses, daylight hours decrease subtly beneath clear skies. Decreased rainfall and increasing temperatures indicate a shift towards a drier climate. Overall, September offers a blend of post-monsoon calm and pre-summer conditions.Temperature
The commencement of September records an average high-temperature of a still fiery hot 39.3°C (102.7°F), barely varying from August's 38.2°C (100.8°F). Gao's nighttime temperature during September is consistently averaged at a tropical 30.6°C (87.1°F).Humidity
In Gao, the average relative humidity in September is 29%.Rainfall
In Gao, during September, the rain falls for 6.2 days and regularly aggregates up to 11mm (0.43") of precipitation. In Gao, Mali, during the entire year, the rain falls for 38.3 days and collects up to 103mm (4.06") of precipitation.Daylight
The average length of the day in September is 12h and 13min.On the first day of the month, sunrise is at 05:47 and sunset at 18:12. On the last day of September, in Gao, sunrise is at 05:50 and sunset at 17:49 GMT.
Sunshine
In September, the average sunshine is 11h.UV index
The months with the highest UV index in Gao are April through July and September, with an average maximum UV index of 9. A UV Index estimate of 8 to 10 represents a very high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 9 in September translates into the following recommendations:
Swift harm can befall unprotected skin and eyes. Prioritize safety. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Despite the clouds, sunscreen with an SPF of at least 30 should be used liberally and reapplied frequently, especially after a swim or outdoor workout.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gao, Mali
- Average high temperature in September: 39.3°C
The warmest month (with the highest average high temperature) is May (42.9°C).
The month with the lowest average high temperature is January (30.8°C).
- Average low temperature in September: 30.6°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 (15.6°C).
Average pressure in September
Gao, Mali
- Average pressure in September: 1009.3mbar
The month with the highest atmospheric pressure is January (1014.5mbar).
The month with the lowest atmospheric pressure is May (1007mbar).
Average wind speed in September
Gao, Mali
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is July (16.5km/h).
The calmest month (with the lowest average wind speed) is October (11.6km/h).
Average humidity in September
Gao, Mali
- Average humidity in September: 29%
The month with the highest relative humidity is August (38%).
The month with the lowest relative humidity is March (11%).
Average rainfall in September
Gao, Mali
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is August (56mm).
The driest months (with the least rainfall) are January, February, March, April, November and December (0mm).
Average rainfall days in September
Gao, Mali
- Average rainfall days in September: 6.2 days
The month with the highest number of rainy days is August (11.3 days).
The month with the least rainy days is December (0 days).
Average daylight in September /
Average sunshine in September
Gao, 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: 11h and 0min
The month with the most sunshine is May (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 30min).
Average sunshine days in September
Gao, Mali
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is December (31 days).
The month with the least sunshine days is July (16.4 days).
Average UV index in September
Gao, 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
Gao, Mali
- Average cloud cover in September: 13
The month with the most cloud cover is August (Cloud cover 20).
The month with the least cloud cover is November (Cloud cover 6).
Average visibility in September
Gao, 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).
