As Sawānī climate — normals and trends
As Sawānī (Libya) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 20.3 °C and it receives 178 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (27.8 °C on average) and the coldest is January (12.4 °C). Rainfall peaks in December.
As Sawānī averages 0 frost days, 114 hot days (≥ 30 °C) and 38 rainy days per year.
As Sawānī has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 46.6 °C (on 19 August 1945) and the coldest 1.4 °C (on 7 January 1941).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
As SawānīAl Jafarah
- coords
- 32.72°, 13.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
20.3°C
Average daily high
25.5°C
Average daily low
16.1°C
Annual rainfall
178mm
Sunshine / day
11.0h
Mean relative humidity
63%
Average peak wind
19.5km/h
Seasonal range
15.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
114 d/yr
Rainy days (≥ 1 mm)
38 d/yr
Annual snowfall
0.0 cm
Average feels-like high
25.3 °C
Average feels-like low
15.3 °C
Average peak gust
36.4 km/h
Tropical nights (≥ 20 °C)
116 d/yr
Solar radiation
19.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.56 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
46.6 °C
19 August 1945
Coldest day
1.4 °C
7 January 1941
Wettest day
85 mm
20 October 1974
Windiest day
54.6 km/h
5 April 1994
Strongest gust
97.6 km/h
5 April 1994
Hottest feels-like
47.8 °C
18 August 2022
Coldest feels-like
-4.4 °C
19 December 1940
Snowiest day
0.1 cm
18 February 1979
Sunniest day
13.9 h
16 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 18.5 °C | +1.9 °C | 16 mm | -14 mm |
| Feb | 19.6 °C | +1.4 °C | 7 mm | -15 mm |
| Mar | 25.6 °C | +4.8 °C | 21 mm | +2 mm |
| Apr | 25.4 °C | +0.9 °C | 10 mm | -1 mm |
| May | 29.0 °C | +0.9 °C | 7 mm | +3 mm |
| Jun | 33.0 °C | +1.4 °C | 0 mm | -1 mm |
| Jul | 35.4 °C | +2.5 °C | 0 mm | -0 mm |
| Aug | 34.2 °C | +0.7 °C | 0 mm | -1 mm |
| Sep | 32.6 °C | +1.0 °C | 6 mm | -4 mm |
| Oct | 28.7 °C | +1.1 °C | 21 mm | -2 mm |
| Nov | 24.0 °C | +1.5 °C | 5 mm | -20 mm |
| Dec | 19.7 °C | +1.8 °C | 23 mm | -9 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of As Sawānī?
As Sawānī has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 20.3 °C and it receives 178 mm of precipitation per year.
What is the hottest day ever recorded in As Sawānī?
The hottest day measured in As Sawānī between 1940 and 2025 was 19 August 1945, reaching 46.6 °C.
What is the coldest day in As Sawānī?
The coldest day measured in As Sawānī between 1940 and 2025 was 7 January 1941, at 1.4 °C.
Does it snow in As Sawānī?
Almost never: As Sawānī sees virtually no snow, with about 0 frost days per year.
Has the climate of As Sawānī warmed?
Yes: As Sawānī warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in As Sawānī?
The wettest day measured in As Sawānī between 1940 and 2025 was 20 October 1974, with 85 mm of rain in 24 hours.
What was the windiest day in As Sawānī?
The windiest day measured in As Sawānī between 1940 and 2025 was 5 April 1994, with winds reaching 54.6 km/h.
What is the warmest month in As Sawānī?
The warmest month in As Sawānī is August (27.8 °C on average); the coldest is January (12.4 °C).
How much does it rain in As Sawānī?
As Sawānī receives on average 178 mm of precipitation per year, spread over about 38 rainy days.
Is it sunny in As Sawānī?
As Sawānī gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
What is the biggest single-day snowfall in As Sawānī?
The heaviest 24-hour snowfall measured in As Sawānī between 1940 and 2025 was 18 February 1979, with 0.1 cm.
Are there tropical nights in As Sawānī?
Yes: As Sawānī has on average 116 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in As Sawānī?
In As Sawānī, between 1940 and 2025, the highest apparent temperature reached 47.8 °C on 18 August 2022, and the lowest was -4.4 °C on 19 December 1940.
Compare As Sawānī with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around As Sawānī