For those seeking warm weather, the ideal time to visit Niamey is in April, May and March. During these months, temperatures typically soar to an average of 39.99 °C, and you'll find that November, March and May are the sunniest months, with an average of 219.71 hours of sunshine.
Conversely, if you favor cooler weather, consider planning your trip to Niamey in January, February or December. During this period, you can expect an average temperature of 18.69 °C.
For travelers indifferent to temperature but keen to steer clear of rain, it’s wise to avoid visiting during January, April and May, when the average precipitation in Niamey reaches 1.38 mm. Instead, consider the drier months of January, February and March, which feature significantly lower rainfall, averaging only 0 mm.