Sirte, Libya climate
BSh Hot semi-arid
Sirte has a mildly seasonal warm-temperate climate (Hot semi-arid, Köppen BSh). The hottest month is August with an average daily high near 32°C, while the coldest is January averaging around 10°C at night. Precipitation totals about 233 mm a year and is strongly seasonal — December alone averages 52 mm while July 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)Sirte climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 20 | 22 | 24 | 27 | 30 | 31 | 32 | 32 | 30 | 25 | 20 |
| Avg temp (°C) | 15 | 15 | 17 | 19 | 22 | 25 | 27 | 27 | 27 | 25 | 20 | 16 |
| Avg low (°C) | 10 | 10 | 11 | 14 | 17 | 20 | 22 | 23 | 23 | 20 | 15 | 11 |
| Precipitation (mm) | 41 | 35 | 18 | 5 | 17 | 5 | 0 | 0 | 5 | 32 | 23 | 52 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 20 | 22 | 24 | 27 | 30 |
| Avg temp (°C) | 15 | 15 | 17 | 19 | 22 | 25 |
| Avg low (°C) | 10 | 10 | 11 | 14 | 17 | 20 |
| Precipitation (mm) | 41 | 35 | 18 | 5 | 17 | 5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 32 | 32 | 30 | 25 | 20 |
| Avg temp (°C) | 27 | 27 | 27 | 25 | 20 | 16 |
| Avg low (°C) | 22 | 23 | 23 | 20 | 15 | 11 |
| Precipitation (mm) | 0 | 0 | 5 | 32 | 23 | 52 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 4 | 2 | 0.7 | 1 | 0.4 | 0.1 | — | 0.6 | 2 | 3 | 4 |
| Days with high ≥ 32°C (days) | — | 0.2 | 1 | 2 | 4 | 5 | 5 | 8 | 6 | 5 | 0.9 | 0.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 4 | 2 | 0.7 | 1 | 0.4 |
| Days with high ≥ 32°C (days) | — | 0.2 | 1 | 2 | 4 | 5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.1 | — | 0.6 | 2 | 3 | 4 |
| Days with high ≥ 32°C (days) | 5 | 8 | 6 | 5 | 0.9 | 0.0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 49 | 45 | 43 | 42 | 27 | 16 | 16 | 30 | 43 | 48 | 56 |
| Relative humidity (%) | 67 | 65 | 63 | 59 | 57 | 57 | 60 | 61 | 60 | 60 | 61 | 64 |
| Wind speed (mph) | 8.9 | 8.9 | 8.7 | 8.9 | 8.4 | 7.7 | 7.2 | 7.1 | 7.9 | 7.7 | 7.9 | 8.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 49 | 45 | 43 | 42 | 27 |
| Relative humidity (%) | 67 | 65 | 63 | 59 | 57 | 57 |
| Wind speed (mph) | 8.9 | 8.9 | 8.7 | 8.9 | 8.4 | 7.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 16 | 16 | 30 | 43 | 48 | 56 |
| Relative humidity (%) | 60 | 61 | 60 | 60 | 61 | 64 |
| Wind speed (mph) | 7.2 | 7.1 | 7.9 | 7.7 | 7.9 | 8.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 19 years of daily observations at Sirte, a weather station, about 1 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.