Idrī, Libya climate
BWh Hot desert
Idrī has a seasonal warm-temperate climate (Hot desert, Köppen BWh). The hottest month is August with an average daily high near 39°C, while the coldest is January averaging around 4°C at night. Precipitation totals about 20 mm a year and is strongly seasonal — September alone averages 12 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)Idrī climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 21 | 28 | 32 | 36 | 39 | 39 | 39 | 38 | 32 | 25 | 23 |
| Avg temp (°C) | 11 | 13 | 20 | 24 | 28 | 31 | 31 | 32 | 30 | 25 | 18 | 14 |
| Avg low (°C) | 4 | 6 | 12 | 16 | 20 | 23 | 23 | 24 | 23 | 18 | 11 | 6 |
| Precipitation (mm) | 0 | 0 | 7 | 1 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 21 | 28 | 32 | 36 | 39 |
| Avg temp (°C) | 11 | 13 | 20 | 24 | 28 | 31 |
| Avg low (°C) | 4 | 6 | 12 | 16 | 20 | 23 |
| Precipitation (mm) | 0 | 0 | 7 | 1 | 0 | 0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 39 | 39 | 38 | 32 | 25 | 23 |
| Avg temp (°C) | 31 | 32 | 30 | 25 | 18 | 14 |
| Avg low (°C) | 23 | 24 | 23 | 18 | 11 | 6 |
| Precipitation (mm) | 0 | 0 | 12 | 0 | 0 | 0 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.1 | 0.0 | 0.2 | 0.2 | 0.0 | 0.2 | — | 0.0 | 0.1 | 0.2 | — | 0.1 |
| Days with high ≥ 32°C (days) | — | 0.6 | 3 | 7 | 12 | 14 | 14 | 14 | 13 | 9 | 2 | 0.3 |
| Days with low ≤ 0°C (days) | 1 | 0.5 | — | — | — | — | — | — | — | — | — | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.1 | 0.0 | 0.2 | 0.2 | 0.0 | 0.2 |
| Days with high ≥ 32°C (days) | — | 0.6 | 3 | 7 | 12 | 14 |
| Days with low ≤ 0°C (days) | 1 | 0.5 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | — | 0.0 | 0.1 | 0.2 | — | 0.1 |
| Days with high ≥ 32°C (days) | 14 | 14 | 13 | 9 | 2 | 0.3 |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 24 | 24 | 26 | 31 | 34 | 19 | 6 | 8 | 15 | 21 | 25 | 28 |
| Relative humidity (%) | 46 | 37 | 27 | 22 | 20 | 18 | 18 | 20 | 22 | 29 | 35 | 45 |
| Wind speed (km/h) | 9.4 | 10.3 | 11.4 | 12.3 | 12.6 | 12.2 | 11.7 | 11.3 | 11.0 | 10.5 | 9.6 | 9.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 24 | 24 | 26 | 31 | 34 | 19 |
| Relative humidity (%) | 46 | 37 | 27 | 22 | 20 | 18 |
| Wind speed (km/h) | 9.4 | 10.3 | 11.4 | 12.3 | 12.6 | 12.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 6 | 8 | 15 | 21 | 25 | 28 |
| Relative humidity (%) | 18 | 20 | 22 | 29 | 35 | 45 |
| Wind speed (km/h) | 11.7 | 11.3 | 11.0 | 10.5 | 9.6 | 9.3 |
Methodology & sources
Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
Precipitation — 1991–2020 normals computed from 2 years of daily observations at Obari, a weather station, about 98 km from the city centre. 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.