Ati, Chad climate
BWh Hot desert
Ati has a mildly seasonal tropical climate (Hot desert, Köppen BWh). The hottest month is May with an average daily high near 107°F, while the coldest is January averaging around 59°F at night. Precipitation totals about 15 inches a year and is strongly seasonal — August alone averages 7.2 inches while December barely receives 0.00 inches.
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)Ati climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 94 | 99 | 105 | 108 | 107 | 103 | 95 | 89 | 92 | 98 | 98 | 95 |
| Avg temp (°F) | 77 | 82 | 88 | 93 | 94 | 92 | 85 | 81 | 82 | 85 | 82 | 78 |
| Avg low (°F) | 59 | 64 | 71 | 78 | 81 | 80 | 76 | 73 | 73 | 72 | 65 | 60 |
| Precipitation (in) | 0.0 | 0.0 | 0.0 | 0.1 | 0.3 | 0.9 | 3.6 | 7.2 | 2.5 | 0.3 | 0.0 | 0.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 94 | 99 | 105 | 108 | 107 | 103 |
| Avg temp (°F) | 77 | 82 | 88 | 93 | 94 | 92 |
| Avg low (°F) | 59 | 64 | 71 | 78 | 81 | 80 |
| Precipitation (in) | 0.0 | 0.0 | 0.0 | 0.1 | 0.3 | 0.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 95 | 89 | 92 | 98 | 98 | 95 |
| Avg temp (°F) | 85 | 81 | 82 | 85 | 82 | 78 |
| Avg low (°F) | 76 | 73 | 73 | 72 | 65 | 60 |
| Precipitation (in) | 3.6 | 7.2 | 2.5 | 0.3 | 0.0 | 0.0 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 24 | 27 | 31 | 30 | 31 | 30 | 25 | 10 | 18 | 29 | 30 | 27 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 24 | 27 | 31 | 30 | 31 | 30 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 25 | 10 | 18 | 29 | 30 | 27 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 27 | 27 | 37 | 43 | 50 | 57 | 69 | 73 | 56 | 38 | 25 | 26 |
| Relative humidity (%) | 17 | 13 | 12 | 16 | 27 | 42 | 62 | 77 | 72 | 50 | 25 | 19 |
| Wind speed (mph) | 7.6 | 8.0 | 8.0 | 6.7 | 6.0 | 6.3 | 5.9 | 4.3 | 3.8 | 4.0 | 6.1 | 7.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 27 | 27 | 37 | 43 | 50 | 57 |
| Relative humidity (%) | 17 | 13 | 12 | 16 | 27 | 42 |
| Wind speed (mph) | 7.6 | 8.0 | 8.0 | 6.7 | 6.0 | 6.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 73 | 56 | 38 | 25 | 26 |
| Relative humidity (%) | 62 | 77 | 72 | 50 | 25 | 19 |
| Wind speed (mph) | 5.9 | 4.3 | 3.8 | 4.0 | 6.1 | 7.2 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
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.