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 89°F, while the coldest is January averaging around 50°F at night. Precipitation totals about 9 inches a year and is strongly seasonal — December alone averages 2.0 inches while July 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)Sirte climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 66 | 68 | 72 | 76 | 81 | 85 | 87 | 89 | 89 | 85 | 77 | 69 |
| Avg temp (°F) | 58 | 59 | 63 | 66 | 72 | 77 | 80 | 81 | 81 | 76 | 68 | 60 |
| Avg low (°F) | 50 | 49 | 53 | 57 | 63 | 68 | 72 | 74 | 73 | 67 | 59 | 51 |
| Precipitation (in) | 1.6 | 1.4 | 0.7 | 0.2 | 0.7 | 0.2 | 0.0 | 0.0 | 0.2 | 1.3 | 0.9 | 2.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 66 | 68 | 72 | 76 | 81 | 85 |
| Avg temp (°F) | 58 | 59 | 63 | 66 | 72 | 77 |
| Avg low (°F) | 50 | 49 | 53 | 57 | 63 | 68 |
| Precipitation (in) | 1.6 | 1.4 | 0.7 | 0.2 | 0.7 | 0.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 89 | 89 | 85 | 77 | 69 |
| Avg temp (°F) | 80 | 81 | 81 | 76 | 68 | 60 |
| Avg low (°F) | 72 | 74 | 73 | 67 | 59 | 51 |
| Precipitation (in) | 0.0 | 0.0 | 0.2 | 1.3 | 0.9 | 2.1 |
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 ≥ 90°F (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 ≥ 90°F (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 ≥ 90°F (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.