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Tillabéri, Niger climate
BWh Hot desert
Tillabéri has a mildly seasonal tropical climate (Hot desert, Köppen BWh). The hottest month is May with an average daily high near 42°C, while the coldest is January averaging around 18°C at night. Precipitation totals about 415 mm a year and is strongly seasonal — August alone averages 144 mm while January barely receives 0 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Tillabéri climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 36 | 40 | 42 | 42 | 39 | 36 | 34 | 36 | 39 | 38 | 34 |
| Avg temp (°C) | 25 | 28 | 32 | 35 | 35 | 33 | 31 | 29 | 31 | 32 | 30 | 26 |
| Avg low (°C) | 18 | 20 | 24 | 27 | 29 | 28 | 26 | 25 | 25 | 25 | 22 | 19 |
| Precipitation (mm) | 0 | 2 | 12 | 5 | 19 | 57 | 92 | 144 | 71 | 11 | 0 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 36 | 40 | 42 | 42 | 39 |
| Avg temp (°C) | 25 | 28 | 32 | 35 | 35 | 33 |
| Avg low (°C) | 18 | 20 | 24 | 27 | 29 | 28 |
| Precipitation (mm) | 0 | 2 | 12 | 5 | 19 | 57 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 36 | 34 | 36 | 39 | 38 | 34 |
| Avg temp (°C) | 31 | 29 | 31 | 32 | 30 | 26 |
| Avg low (°C) | 26 | 25 | 25 | 25 | 22 | 19 |
| Precipitation (mm) | 92 | 144 | 71 | 11 | 0 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 30 | 28 | 35 | 44 | 49 | 51 | 55 | 58 | 48 | 36 | 27 | 29 |
| Relative humidity (%) | 19 | 16 | 15 | 21 | 35 | 47 | 59 | 71 | 68 | 49 | 27 | 23 |
| Wind speed (m/s) | 3.3 | 3.2 | 3.0 | 2.7 | 3.1 | 3.4 | 3.0 | 2.3 | 2.1 | 2.0 | 2.4 | 3.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 30 | 28 | 35 | 44 | 49 | 51 |
| Relative humidity (%) | 19 | 16 | 15 | 21 | 35 | 47 |
| Wind speed (m/s) | 3.3 | 3.2 | 3.0 | 2.7 | 3.1 | 3.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 58 | 48 | 36 | 27 | 29 |
| Relative humidity (%) | 59 | 71 | 68 | 49 | 27 | 23 |
| Wind speed (m/s) | 3.0 | 2.3 | 2.1 | 2.0 | 2.4 | 3.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Tillabery, a weather station, inside the city. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.