El Fahs climate — normals and trends
El Fahs (Tunisia) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 17.8 °C and it receives 380 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 July (26.7 °C on average) and the coldest is January (10.0 °C). Rainfall peaks in October.
El Fahs averages 1 frost days, 90 hot days (≥ 30 °C) and 66 rainy days per year.
El Fahs has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 2 to 0 per year over the period.
The hottest day of the period reached 45.8 °C (on 24 July 2023) and the coldest -3.5 °C (on 4 January 1942).
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
El FahsZaghouan Governorate
- coords
- 36.37°, 9.91°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.8°C
Average daily high
23.5°C
Average daily low
12.8°C
Annual rainfall
380mm
Sunshine / day
10.4h
Mean relative humidity
67%
Average peak wind
15.9km/h
Seasonal range
16.7°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
90 d/yr
Rainy days (≥ 1 mm)
66 d/yr
Annual snowfall
0.0 cm
Average feels-like high
22.9 °C
Average feels-like low
11.8 °C
Average peak gust
37.9 km/h
Tropical nights (≥ 20 °C)
52 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.65 · 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
45.8 °C
24 July 2023
Coldest day
-3.5 °C
4 January 1942
Wettest day
99 mm
21 October 1953
Windiest day
46.6 km/h
8 January 1968
Strongest gust
119.9 km/h
31 December 2000
Hottest feels-like
46.6 °C
28 July 2023
Coldest feels-like
-6.9 °C
16 January 1978
Snowiest day
0.7 cm
31 January 1962
Sunniest day
13.9 h
19 June 1941
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 | 17.0 °C | +2.3 °C | 67 mm | +32 mm |
| Feb | 16.7 °C | +1.0 °C | 46 mm | +6 mm |
| Mar | 19.6 °C | +1.6 °C | 32 mm | -17 mm |
| Apr | 22.2 °C | +1.2 °C | 77 mm | +33 mm |
| May | 26.5 °C | +0.9 °C | 38 mm | +11 mm |
| Jun | 34.0 °C | +3.6 °C | 4 mm | -8 mm |
| Jul | 35.8 °C | +2.0 °C | 3 mm | -1 mm |
| Aug | 34.5 °C | +1.0 °C | 15 mm | +3 mm |
| Sep | 31.6 °C | +2.0 °C | 37 mm | -2 mm |
| Oct | 26.7 °C | +2.1 °C | 19 mm | -32 mm |
| Nov | 21.3 °C | +1.6 °C | 6 mm | -26 mm |
| Dec | 17.3 °C | +1.5 °C | 36 mm | +1 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 El Fahs?
El Fahs has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 17.8 °C and it receives 380 mm of precipitation per year.
What is the hottest day ever recorded in El Fahs?
The hottest day measured in El Fahs between 1940 and 2025 was 24 July 2023, reaching 45.8 °C.
What is the coldest day in El Fahs?
The coldest day measured in El Fahs between 1940 and 2025 was 4 January 1942, at -3.5 °C.
Does it snow in El Fahs?
Almost never: El Fahs sees virtually no snow, with about 1 frost days per year.
Has the climate of El Fahs warmed?
Yes: El Fahs warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in El Fahs?
The wettest day measured in El Fahs between 1940 and 2025 was 21 October 1953, with 99 mm of rain in 24 hours.
What was the windiest day in El Fahs?
The windiest day measured in El Fahs between 1940 and 2025 was 8 January 1968, with winds reaching 46.6 km/h.
What is the warmest month in El Fahs?
The warmest month in El Fahs is July (26.7 °C on average); the coldest is January (10.0 °C).
How much does it rain in El Fahs?
El Fahs receives on average 380 mm of precipitation per year, spread over about 66 rainy days.
Is it sunny in El Fahs?
El Fahs gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
What is the biggest single-day snowfall in El Fahs?
The heaviest 24-hour snowfall measured in El Fahs between 1940 and 2025 was 31 January 1962, with 0.7 cm.
Are there tropical nights in El Fahs?
Yes: El Fahs has on average 52 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in El Fahs?
In El Fahs, between 1940 and 2025, the highest apparent temperature reached 46.6 °C on 28 July 2023, and the lowest was -6.9 °C on 16 January 1978.
Compare El Fahs with another city
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Nearby cities
The climate around El Fahs