Arta climate — normals and trends
Arta (Djibouti) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 27.4 °C and it receives 285 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 June (33.1 °C on average) and the coldest is January (22.1 °C). Rainfall peaks in April.
Arta averages 0 frost days, 229 hot days (≥ 30 °C) and 66 rainy days per year.
Arta has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 43.5 °C (on 2 June 2017) and the coldest 13.3 °C (on 2 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
ArtaArta Region
- coords
- 11.53°, 42.85°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.4°C
Average daily high
32.6°C
Average daily low
23.3°C
Annual rainfall
285mm
Sunshine / day
11.0h
Mean relative humidity
62%
Average peak wind
18.9km/h
Seasonal range
11.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
229 d/yr
Rainy days (≥ 1 mm)
66 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.8 °C
Average feels-like low
25.5 °C
Average peak gust
40.9 km/h
Tropical nights (≥ 20 °C)
284 d/yr
Solar radiation
20.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.60 · 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
43.5 °C
2 June 2017
Coldest day
13.3 °C
2 January 1968
Wettest day
113 mm
1 May 1978
Windiest day
33.0 km/h
13 July 1949
Strongest gust
68.8 km/h
13 July 1949
Hottest feels-like
45.0 °C
11 June 2025
Coldest feels-like
12.9 °C
2 January 1968
Sunniest day
12.0 h
11 April 1940
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 | 28.1 °C | +1.4 °C | 2 mm | -17 mm |
| Feb | 29.2 °C | +1.3 °C | 3 mm | -15 mm |
| Mar | 31.1 °C | +1.2 °C | 4 mm | -25 mm |
| Apr | 33.7 °C | +2.0 °C | 1 mm | -43 mm |
| May | 39.0 °C | +3.3 °C | 5 mm | -25 mm |
| Jun | 41.1 °C | +1.9 °C | 0 mm | -7 mm |
| Jul | 40.1 °C | +2.3 °C | 4 mm | -16 mm |
| Aug | 35.6 °C | -1.2 °C | 65 mm | +31 mm |
| Sep | 38.6 °C | +2.1 °C | 8 mm | -20 mm |
| Oct | 34.7 °C | +2.3 °C | 3 mm | -18 mm |
| Nov | 30.3 °C | +1.2 °C | 0 mm | -17 mm |
| Dec | 27.9 °C | +0.7 °C | 14 mm | -6 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 Arta?
Arta has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 27.4 °C and it receives 285 mm of precipitation per year.
What is the hottest day ever recorded in Arta?
The hottest day measured in Arta between 1940 and 2025 was 2 June 2017, reaching 43.5 °C.
What is the coldest day in Arta?
The coldest day measured in Arta between 1940 and 2025 was 2 January 1968, at 13.3 °C.
Does it snow in Arta?
Almost never: Arta sees virtually no snow, with about 0 frost days per year.
Has the climate of Arta warmed?
Yes: Arta warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Arta?
The wettest day measured in Arta between 1940 and 2025 was 1 May 1978, with 113 mm of rain in 24 hours.
What was the windiest day in Arta?
The windiest day measured in Arta between 1940 and 2025 was 13 July 1949, with winds reaching 33.0 km/h.
What is the warmest month in Arta?
The warmest month in Arta is June (33.1 °C on average); the coldest is January (22.1 °C).
How much does it rain in Arta?
Arta receives on average 285 mm of precipitation per year, spread over about 66 rainy days.
Is it sunny in Arta?
Arta gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
Are there tropical nights in Arta?
Yes: Arta has on average 284 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Arta?
In Arta, between 1940 and 2025, the highest apparent temperature reached 45.0 °C on 11 June 2025, and the lowest was 12.9 °C on 2 January 1968.
Compare Arta with another city
Pick a second city: its normals will be set against these, indicator by indicator.