Weather in Ouagadougou

April is the warmest month (average 32.7°C, high 39.9°C) and January is the coolest (average 24.0°C, low 15.1°C). That 8.7°C swing in monthly averages is the first thing to plan around in Ouagadougou.

Rain is the monsoon runs from June to September, inside an annual total of 818 mm. The wettest month is August at 245 mm; the driest is December at 0 mm. Ouagadougou is in Burkina Faso at 12.4°N. The 2001–2020 NASA POWER daily record describes a monsoon climate with a sharp wet-dry split. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are November, December, and January.

Hot and cool months in Ouagadougou

Monthly average highs run from 33.0°C in January to 39.9°C in April. Nights follow the same curve: 15.1°C in January and 25.5°C in April.

Mean high across all twelve months is 35.1°C and mean low is 21.3°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

Rainfall pattern

The monsoon in Ouagadougou starts in June and ends in September (June, July, August, and September). August is the core of it at 245 mm. December is the other extreme, with 0 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. August averages 29 such days; December averages 0.

What stands out month by month

The year bottoms out in January. Plan for 15.1°C at night and 33.0°C in the afternoon. Peak heat arrives in April: 39.9°C by day, 25.5°C at night, and 36% humidity. In July, Ouagadougou averages 32.7°C by day and 23.1°C at night, with 178 mm of rain. August is the wettest month — 245 mm and 29 rainy days, with 80% humidity.

September closes the monsoon: 147 mm over 25 rainy days, then the calendar dries. October stands apart from the months beside it: 34.5°C / 22.1°C and 45 mm. December is the driest month, averaging only 0 mm across 0 rainy days. Highs sit near 33.3°C.

Best months to visit Ouagadougou

The three months with the highest comfort score are November, December, and January: November (26.7°C average, 1 mm, 45% humidity); December (24.4°C average, 0 mm, 33% humidity); January (24.0°C average, 1 mm, 24% humidity). Those months sit across the year end, so they are listed in season order rather than January-to-December. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you want the monsoon itself — fewer crowds, greener landscape, heavier rain — aim at June–September instead of the score.

How Ouagadougou compares inside Burkina Faso

Ouagadougou is the only Burkina Faso city in this dataset, so the figures on this page are the national sample we publish. They still come from the same NASA POWER daily series (2001–2020) used everywhere else on the site.