Biltine climate — normals and trends
Biltine (Chad) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 27.8 °C and it receives 317 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 May (32.4 °C on average) and the coldest is January (23.0 °C). Rainfall peaks in August.
Biltine averages 0 frost days, 329 hot days (≥ 30 °C) and 46 rainy days per year.
Biltine has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The hottest day of the period reached 45.4 °C (on 28 May 2024) and the coldest 7.6 °C (on 17 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
BiltineWadi Fira Region
- coords
- 14.53°, 20.93°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.8°C
Average daily high
35.1°C
Average daily low
21.8°C
Annual rainfall
317mm
Sunshine / day
11.2h
Mean relative humidity
31%
Average peak wind
20.0km/h
Seasonal range
9.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
329 d/yr
Rainy days (≥ 1 mm)
46 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.0 °C
Average feels-like low
19.1 °C
Average peak gust
36.1 km/h
Tropical nights (≥ 20 °C)
262 d/yr
Solar radiation
23.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.69 · 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
45.4 °C
28 May 2024
Coldest day
7.6 °C
17 January 1968
Wettest day
133 mm
30 July 1942
Windiest day
44.7 km/h
23 April 1967
Strongest gust
76.3 km/h
23 April 1967
Hottest feels-like
45.0 °C
17 April 2024
Coldest feels-like
1.4 °C
9 February 1982
Sunniest day
12.8 h
13 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 33.2 °C | +1.4 °C | 0 mm | -0 mm |
| Feb | 36.1 °C | +2.2 °C | 0 mm | 0 mm |
| Mar | 37.8 °C | +1.0 °C | 0 mm | -0 mm |
| Apr | 40.2 °C | +1.0 °C | 0 mm | -1 mm |
| May | 41.3 °C | +2.0 °C | 0 mm | -7 mm |
| Jun | 39.4 °C | +1.5 °C | 0 mm | -16 mm |
| Jul | 34.9 °C | +1.1 °C | 30 mm | -65 mm |
| Aug | 32.2 °C | +1.0 °C | 101 mm | -55 mm |
| Sep | 35.4 °C | +0.9 °C | 23 mm | -16 mm |
| Oct | 37.6 °C | +1.2 °C | 0 mm | -4 mm |
| Nov | 35.9 °C | +1.7 °C | 0 mm | -0 mm |
| Dec | 34.6 °C | +2.4 °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 Biltine?
Biltine has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 27.8 °C and it receives 317 mm of precipitation per year.
What is the hottest day ever recorded in Biltine?
The hottest day measured in Biltine between 1940 and 2025 was 28 May 2024, reaching 45.4 °C.
What is the coldest day in Biltine?
The coldest day measured in Biltine between 1940 and 2025 was 17 January 1968, at 7.6 °C.
Does it snow in Biltine?
Almost never: Biltine sees virtually no snow, with about 0 frost days per year.
Has the climate of Biltine warmed?
Yes: Biltine warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Biltine?
The wettest day measured in Biltine between 1940 and 2025 was 30 July 1942, with 133 mm of rain in 24 hours.
What was the windiest day in Biltine?
The windiest day measured in Biltine between 1940 and 2025 was 23 April 1967, with winds reaching 44.7 km/h.
What is the warmest month in Biltine?
The warmest month in Biltine is May (32.4 °C on average); the coldest is January (23.0 °C).
How much does it rain in Biltine?
Biltine receives on average 317 mm of precipitation per year, spread over about 46 rainy days.
Is it sunny in Biltine?
Biltine gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in Biltine?
Yes: Biltine has on average 262 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Biltine?
In Biltine, between 1940 and 2025, the highest apparent temperature reached 45.0 °C on 17 April 2024, and the lowest was 1.4 °C on 9 February 1982.
Compare Biltine with another city
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Nearby cities
The climate around Biltine