Climate averages 1991–2020
Niamey weather
in May.
A very hot, very dry month: the 2nd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a very hot month in Niamey: daytime highs average 40.5°C and nights cool to about 27.9°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 8.3 mm of rain on roughly 2 days, which makes May a very dry month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 45 min on an average May day.
The nearest other city in this atlas is Dosso (128 km away). In May its highs average 39.9°C, 0.6°C cooler than Niamey, with 13 mm of rain.
Among the 8 cities listed in Niger, Niamey ranks 3rd of 8 for the warmest May highs and 4th of 8 for the driest May (rainfall, lowest first). The mean May high of those 8 cities is 40.3°C; Niamey is 0.2°C warmer than that mean.
From May to June, average highs fall by 2.2°C to 38.3°C, and monthly rainfall rises from 8.3 mm to 21 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Niamey climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.6°C15.8°C | 15.8°C | 0 | 0.0 | 11.411 h |
| February | 34.7°C18.0°C | 18.0°C | 0.1 | 0.0 | 11.712 h |
| March | 38.4°C21.3°C | 21.3°C | 1.0 | 0.4 | 12.012 h |
| April | 40.8°C25.1°C | 25.1°C | 1.9 | 0.6 | 12.412 h |
| May, selected | 40.5°C27.9°C | 27.9°C | 8.3 | 2.3 | 12.713 h |
| June | 38.3°C27.3°C | 27.3°C | 21 | 5.1 | 12.913 h |
| July | 34.8°C25.4°C | 25.4°C | 61 | 10.7 | 12.813 h |
| August | 32.2°C24.1°C | 24.1°C | 122 | 15.2 | 12.613 h |
| September | 34.5°C24.7°C | 24.7°C | 45 | 6.5 | 12.212 h |
| October | 37.4°C24.2°C | 24.2°C | 8.8 | 1.9 | 11.812 h |
| November | 36.0°C19.2°C | 19.2°C | 0 | 0.0 | 11.512 h |
| December | 32.7°C16.5°C | 16.5°C | 0 | 0.0 | 11.311 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Dosso in MayNiger · 128 kmHigh 39.9°C · Low 27.6°C · 13 mm rain
- Fada N'gourma in MayBurkina Faso · 249 kmHigh 38.1°C · Low 26.9°C · 34 mm rain
- Birnin Kebbi in MayNigeria · 255 kmHigh 39.1°C · Low 27.8°C · 27 mm rain
- Jega in MayNigeria · 285 kmHigh 38.2°C · Low 27.3°C · 34 mm rain
- Pouytenga in MayBurkina Faso · 309 kmHigh 38.1°C · Low 27.0°C · 24 mm rain
- Birni N Konni in MayNiger · 341 kmHigh 40.3°C · Low 27.9°C · 14 mm rain
- Sokoto in MayNigeria · 343 kmHigh 39.4°C · Low 27.8°C · 21 mm rain
- Kaya in MayBurkina Faso · 349 kmHigh 39.1°C · Low 27.2°C · 14 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Niamey) is explained once on the Niamey year overview and on the Sources, method and limits page.