Arrah climate — normals and trends
Arrah (Ivory Coast) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.0 °C and it receives 945 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 February (27.7 °C on average) and the coldest is August (24.4 °C). Rainfall peaks in September.
Arrah averages 0 frost days, 229 hot days (≥ 30 °C) and 190 rainy days per year.
Arrah 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 39.3 °C (on 23 February 2024) and the coldest 14.8 °C (on 28 December 1977).
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
ArrahComoé District
- coords
- 6.67°, -3.97°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.0°C
Average daily high
31.0°C
Average daily low
22.6°C
Annual rainfall
945mm
Sunshine / day
8.7h
Mean relative humidity
80%
Average peak wind
10.9km/h
Seasonal range
3.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
229 d/yr
Rainy days (≥ 1 mm)
190 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.5 °C
Average feels-like low
26.3 °C
Average peak gust
26.6 km/h
Tropical nights (≥ 20 °C)
355 d/yr
Solar radiation
16.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.82 · 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
39.3 °C
23 February 2024
Coldest day
14.8 °C
28 December 1977
Wettest day
130 mm
6 October 1948
Windiest day
20.0 km/h
29 June 1988
Strongest gust
59.0 km/h
29 June 1988
Hottest feels-like
44.8 °C
15 February 2024
Coldest feels-like
11.3 °C
9 January 1957
Sunniest day
12.2 h
15 July 1951
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 | 35.9 °C | +3.0 °C | 6 mm | -13 mm |
| Feb | 36.5 °C | +2.6 °C | 29 mm | -15 mm |
| Mar | 35.4 °C | +2.0 °C | 59 mm | -24 mm |
| Apr | 34.2 °C | +1.7 °C | 76 mm | -25 mm |
| May | 32.7 °C | +1.3 °C | 80 mm | -34 mm |
| Jun | 30.9 °C | +1.3 °C | 104 mm | -12 mm |
| Jul | 29.1 °C | +0.7 °C | 53 mm | -42 mm |
| Aug | 28.0 °C | -0.3 °C | 48 mm | -36 mm |
| Sep | 30.1 °C | +0.9 °C | 89 mm | -27 mm |
| Oct | 31.0 °C | +1.1 °C | 124 mm | +20 mm |
| Nov | 31.8 °C | +1.2 °C | 41 mm | -8 mm |
| Dec | 32.2 °C | +0.9 °C | 32 mm | +11 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 Arrah?
Arrah has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.0 °C and it receives 945 mm of precipitation per year.
What is the hottest day ever recorded in Arrah?
The hottest day measured in Arrah between 1940 and 2025 was 23 February 2024, reaching 39.3 °C.
What is the coldest day in Arrah?
The coldest day measured in Arrah between 1940 and 2025 was 28 December 1977, at 14.8 °C.
Does it snow in Arrah?
Almost never: Arrah sees virtually no snow, with about 0 frost days per year.
Has the climate of Arrah warmed?
Yes: Arrah warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Arrah?
The wettest day measured in Arrah between 1940 and 2025 was 6 October 1948, with 130 mm of rain in 24 hours.
What was the windiest day in Arrah?
The windiest day measured in Arrah between 1940 and 2025 was 29 June 1988, with winds reaching 20.0 km/h.
What is the warmest month in Arrah?
The warmest month in Arrah is February (27.7 °C on average); the coldest is August (24.4 °C).
How much does it rain in Arrah?
Arrah receives on average 945 mm of precipitation per year, spread over about 190 rainy days.
Is it sunny in Arrah?
Arrah gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
Are there tropical nights in Arrah?
Yes: Arrah has on average 355 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Arrah?
In Arrah, between 1940 and 2025, the highest apparent temperature reached 44.8 °C on 15 February 2024, and the lowest was 11.3 °C on 9 January 1957.
Compare Arrah with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Arrah