Déressia climate — normals and trends
Déressia (Chad) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 28.1 °C and it receives 823 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 April (33.1 °C on average) and the coldest is August (25.3 °C). Rainfall peaks in August.
Déressia averages 0 frost days, 310 hot days (≥ 30 °C) and 116 rainy days per year.
Déressia has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 45.9 °C (on 10 March 2016) and the coldest 12.2 °C (on 19 January 1968).
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
DéressiaTandjilé Region
- coords
- 9.76°, 16.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
28.1°C
Average daily high
34.5°C
Average daily low
22.7°C
Annual rainfall
823mm
Sunshine / day
10.7h
Mean relative humidity
50%
Average peak wind
13.9km/h
Seasonal range
7.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
310 d/yr
Rainy days (≥ 1 mm)
116 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.7 °C
Average feels-like low
23.1 °C
Average peak gust
30.2 km/h
Tropical nights (≥ 20 °C)
295 d/yr
Solar radiation
21.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.19 · 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
45.9 °C
10 March 2016
Coldest day
12.2 °C
19 January 1968
Wettest day
128 mm
31 May 1987
Windiest day
35.4 km/h
10 May 1967
Strongest gust
66.2 km/h
5 April 1967
Hottest feels-like
47.2 °C
21 April 2024
Coldest feels-like
7.9 °C
19 January 1968
Sunniest day
12.0 h
13 May 1958
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 | 35.8 °C | +1.2 °C | 0 mm | 0 mm |
| Feb | 38.5 °C | +1.2 °C | 0 mm | 0 mm |
| Mar | 42.0 °C | +2.2 °C | 0 mm | -3 mm |
| Apr | 40.5 °C | +0.8 °C | 8 mm | -10 mm |
| May | 38.7 °C | +1.7 °C | 6 mm | -51 mm |
| Jun | 34.8 °C | +1.3 °C | 71 mm | -27 mm |
| Jul | 30.3 °C | -0.1 °C | 298 mm | +104 mm |
| Aug | 29.4 °C | +0.1 °C | 230 mm | -12 mm |
| Sep | 30.8 °C | +0.6 °C | 96 mm | -61 mm |
| Oct | 33.2 °C | +0.4 °C | 21 mm | -30 mm |
| Nov | 36.2 °C | +1.3 °C | 0 mm | -4 mm |
| Dec | 36.3 °C | +2.0 °C | 0 mm | -0 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 Déressia?
Déressia has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 28.1 °C and it receives 823 mm of precipitation per year.
What is the hottest day ever recorded in Déressia?
The hottest day measured in Déressia between 1940 and 2025 was 10 March 2016, reaching 45.9 °C.
What is the coldest day in Déressia?
The coldest day measured in Déressia between 1940 and 2025 was 19 January 1968, at 12.2 °C.
Does it snow in Déressia?
Almost never: Déressia sees virtually no snow, with about 0 frost days per year.
Has the climate of Déressia warmed?
Yes: Déressia warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Déressia?
The wettest day measured in Déressia between 1940 and 2025 was 31 May 1987, with 128 mm of rain in 24 hours.
What was the windiest day in Déressia?
The windiest day measured in Déressia between 1940 and 2025 was 10 May 1967, with winds reaching 35.4 km/h.
What is the warmest month in Déressia?
The warmest month in Déressia is April (33.1 °C on average); the coldest is August (25.3 °C).
How much does it rain in Déressia?
Déressia receives on average 823 mm of precipitation per year, spread over about 116 rainy days.
Is it sunny in Déressia?
Déressia gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
Are there tropical nights in Déressia?
Yes: Déressia has on average 295 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Déressia?
In Déressia, between 1940 and 2025, the highest apparent temperature reached 47.2 °C on 21 April 2024, and the lowest was 7.9 °C on 19 January 1968.
Compare Déressia with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Déressia