Best Time To Visit Mali
During the summer, temperatures in Bamako can reach as high as 42°C (108°F) during the day. In the winter, temperatures can dip to as low as 16°C (61°F) at night, though this varies depending on terrain in different parts of Mali.
The best months to visit Mali are October, November, December, and January. It's the dry season, but the harmattan hasn't fully kicked in yet, so it's the best time to visit. In January, February, March, April, and May, the harmattan wind comes down from the Sahara. It can help to moderate temperatures, but expect gritty haze and uncomfortable dryness, as well as decreased visibility for photography and touring.
The days in Mali are the longest in March, so if you want to see the sites during the day when the sun is up for the longest, go during that month. The rainy season in Mali usually occurs in the months leading up to August. It's not unusual to see some heavy rain or light showers around this period, but on some days, the weather is fine for the bulk of the day, with only a few droplets of rain dropping from a passing shower.