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Climate - Mali

Temperature, rainfall, prevailing weather conditions, when to go, what to pack

See also the US version (°F - inches - feet)

Flag - Mali

Map - Mali

In Mali there are three types of climate: 1- the sub-tropical climate of the Sahara desert in the north, 2- the Sahel semi-desert climate in the centre, with a rainy season from June to September, and precipitation going from 100 to 600 millimetres per year, 3- the tropical climate of the savanna in the south, with a more intense and long rainy season, so that precipitation exceeds 600 mm, the majority of which occurs between May and October.

The vast northern area (zone 1 on the map), virtually lacking settlements except for a few rare oases, is dominated by the desert, and has an average temperature in January between 15 and 20 °C, with some cold nights in the winter months (the cold records are around freezing), while in summer it's scorchingly hot, even though the temperature decreases slightly in July and August, when there can be a bit of cloudiness and some rare showers.
Here are the average temperatures of the northern city of Tessalit, located at 500 metres above sea level.
Tessalit average temperatures
Tessalit J F M A M J J A S O N D
Min (°C) 12 14 18 22 25 28 27 26 26 24 19 14
Max (°C) 27 30 32 37 40 43 42 40 40 37 33 28

The cloudiness and showers in the summer period are are caused by the extreme offshoots of the African summer monsoon, so that damp winds move inland from the Atlantic Ocean, but up here they are not felt much.
Here is the average precipitation in Tessalit.
Average precipitation Tessalit
Tessalit J F M A M J J A S O N D Year
Prec. (mm) 1 0 0 0 2 5 15 30 15 1 0 0 68
Days 0 0 0 0 1 2 3 4 3 1 0 0 14

In the intermediate central area (zone 2), the climate becomes tropical, since the average temperature in January is equal to or greater than 20 °C, while the hottest months of the year are April, May and June, when the maximum temperature normally exceeds 40 °C, but with peaks of 47/48 °C, because then the monsoon comes, which is able to lower the temperature by a few degrees, and to bring some downpours, more intense and frequent than in the northern area. This is the area called Sahel, that stretches from west to east, south of the Sahara.
In Timbuktu (or Tombouctou), the legendary city of the past Mali Empire, 180 mm of rain per year fall, almost all from June to September, with a maximum of 75 mm in August.
Here is the average precipitation.
Average precipitation Timbuktu
Timbuktu J F M A M J J A S O N D Year
Prec. (mm) 1 0 0 1 5 15 55 75 30 5 0 0 183
Days 0 0 0 1 1 3 7 8 5 1 0 0 25

After the rainy season, in which the temperature remains high, at around 35/36 °C, between September and October the heat increases slightly again, with highs around 37/38 °C, but also with peaks over 45 °C, and then it decreases in the winter months, between 27 and 30 °C. These are the only non torrid months of the year, during which, in theory, the sky would be clear, even though a wind from the north-east often blows, the Harmattan, which often raises dust and sand, making the sky whitish. The cause of the development of such an flourishing city as Timbuktu over the past centuries, have not been the few summer rains, but rather the waters of the great Niger River, which rises in the mountains of Guinea and arrives in this semi-desert area, then bends and returns to the south.
Here are the average temperatures in Timbuktu.
Timbuktu average temperatures
Timbuktu J F M A M J J A S O N D
Min (°C) 13 15 19 23 26 27 26 25 25 23 18 14
Max (°C) 30 33 37 40 42 42 39 37 38 39 35 30

Continuing south, the summer rains become more abundant. Already in Mopti, in the area of the "Inner Niger Delta", the rainfall amounts to 500 mm per year.
In the southernmost area (zone 3), it exceeds 600 mm per year, and in the extreme south even 1,000 mm.
In the capital Bamako, the annual precipitation reaches 1,000 mm, and the rainy season becomes a little longer, with the first pre-monsoon showers already in May, a maximum of 300 mm in August, and the last rains on early October.
Here is the average precipitation.
Average precipitation Bamako
Bamako J F M A M J J A S O N D Year
Prec. (mm) 1 1 2 20 54 132 224 290 196 66 5 1 991
Days 0 0 1 3 6 8 17 18 15 6 0 0 74

In the southern area, the maximum temperature is lower in the summer months, because of the cloud cover and the rains, so that it hovers around 30/32 °C, while in winter the southern sun pushes daytime temperatures up to around 33 °C, even though the air is dry and the nights are quite cool. In Bamako, the hottest month is April, with highs around 40 °C, because already in May the temperature drops a bit, under the blows of the first thunderstorms.
Bamako average temperatures
Bamako J F M A M J J A S O N D
Min (°C) 17 20 23 25 25 24 22 22 22 21 18 17
Max (°C) 33 36 39 40 39 35 32 31 32 35 35 33

When to go

The best time to visit Mali is winter, from December to February. In February, the heat rises and it starts to get hot in the south, while in January the sandstorms raised by the Harmattan begin to be more frequent in the north-central, so all in all the best month is December. However, in this season the nights can be cold in the north, and the temperature may drop near freezing at night, while in Bamako and in the south it can get to around 8/10 °C.

What to pack

In winter: light clothes for the day, long and made of natural fabric (cotton or linen), desert turban for the wind-borne sand and dust, sunglasses (even graduated instead of contact lenses), a jacket and a sweater for the evening, desert boots or sandals, sweatshirt or sweater to sail the Niger River.

In summer: for the desert, lightweight clothes, of natural fabric (cotton or linen), desert turban; a sweater for the night, sleeping bag to sleep outdoors. For Bamako and the south, light clothes, umbrella or light raincoat, possibly a sweatshirt for the rain showers. For women, it is best to avoid shorts and miniskirts.

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Ivory Coast

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