Niamey vs Saint-Louis: which is better, month by month

Saint-Louis beats Niamey in 8 of 12 months — its lead peaks in April (81 vs 31) — while Niamey wins September and December; they are within 3 points in January and August.

Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Niamey

🇳🇪 Niger · arid climate

Best month: January 86/100
Months won: 2 of 12

Saint-Louis

🇸🇳 Senegal · arid climate

Best month: January 85/100
Months won: 8 of 12

Niamey vs Saint-Louis — all 12 months

Month	Niamey	Saint-Louis	Winner	Gap
January	86Ahot, dry	85Ahot, dry	Tie	1
February	73Bhot, dry	83Ahot, dry, poor air quality	Saint-Louis	10
March	42Fsweltering, dry	84Ahot, dry	Saint-Louis	42
April	31Fsweltering, dry	81Ahot, dry	Saint-Louis	50
May	35Fsweltering, dry	79Bhot, dry	Saint-Louis	44
June	49Fsweltering, dry	75Bsweltering, dry	Saint-Louis	26
July	64Csweltering, a little rain, clean air	70Bsweltering, dry, muggy air	Saint-Louis	6
August	63Csweltering, rainy, clean air	64Csweltering, a little rain, muggy air	Tie	1
September	66Csweltering, a little rain, clean air	62Csweltering, a little rain, muggy air	Niamey	4
October	53Dsweltering, dry	63Csweltering, dry	Saint-Louis	10
November	60Csweltering, dry	70Bsweltering, dry	Saint-Louis	10
December	84Ahot, dry	80Ahot, dry, poor air quality	Niamey	4

A month is a tie when the two are within 3 points. The widest gap is April (31 vs 81). Tap a month for that month's temperature, rain, humidity and air quality side by side.