Mirriah climate — normals and trends
Mirriah (Niger) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 27.4 °C and it receives 319 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 (32.7 °C on average) and the coldest is January (21.0 °C). Rainfall peaks in August.
Mirriah averages 0 frost days, 302 hot days (≥ 30 °C) and 49 rainy days per year.
Mirriah has warmed by +2.6 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The hottest day of the period reached 44.7 °C (on 24 April 2024) and the coldest 6.5 °C (on 26 December 1980).
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
MirriahZinder Region
- coords
- 13.71°, 9.15°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.4°C
Average daily high
34.3°C
Average daily low
20.9°C
Annual rainfall
319mm
Sunshine / day
11.2h
Mean relative humidity
34%
Average peak wind
19.3km/h
Seasonal range
11.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
302 d/yr
Rainy days (≥ 1 mm)
49 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.7 °C
Average feels-like low
19.2 °C
Average peak gust
36.3 km/h
Tropical nights (≥ 20 °C)
234 d/yr
Solar radiation
23.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.66 · 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
44.7 °C
24 April 2024
Coldest day
6.5 °C
26 December 1980
Wettest day
276 mm
23 August 1952
Windiest day
37.6 km/h
30 May 1999
Strongest gust
76.7 km/h
21 May 1991
Hottest feels-like
46.4 °C
24 April 2024
Coldest feels-like
0.8 °C
26 December 1980
Sunniest day
12.8 h
26 June 2025
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 | 31.0 °C | +2.1 °C | 0 mm | 0 mm |
| Feb | 33.4 °C | +1.5 °C | 0 mm | 0 mm |
| Mar | 39.4 °C | +3.3 °C | 0 mm | -0 mm |
| Apr | 40.5 °C | +1.3 °C | 0 mm | -1 mm |
| May | 41.0 °C | +1.4 °C | 0 mm | -7 mm |
| Jun | 38.7 °C | +1.1 °C | 15 mm | -7 mm |
| Jul | 33.4 °C | -0.2 °C | 61 mm | -35 mm |
| Aug | 31.3 °C | -0.1 °C | 100 mm | -50 mm |
| Sep | 34.2 °C | 0.0 °C | 73 mm | +35 mm |
| Oct | 37.3 °C | +1.1 °C | 0 mm | -4 mm |
| Nov | 35.2 °C | +1.9 °C | 0 mm | -0 mm |
| Dec | 33.5 °C | +3.8 °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 Mirriah?
Mirriah has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 27.4 °C and it receives 319 mm of precipitation per year.
What is the hottest day ever recorded in Mirriah?
The hottest day measured in Mirriah between 1940 and 2025 was 24 April 2024, reaching 44.7 °C.
What is the coldest day in Mirriah?
The coldest day measured in Mirriah between 1940 and 2025 was 26 December 1980, at 6.5 °C.
Does it snow in Mirriah?
Almost never: Mirriah sees virtually no snow, with about 0 frost days per year.
Has the climate of Mirriah warmed?
Yes: Mirriah warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mirriah?
The wettest day measured in Mirriah between 1940 and 2025 was 23 August 1952, with 276 mm of rain in 24 hours.
What was the windiest day in Mirriah?
The windiest day measured in Mirriah between 1940 and 2025 was 30 May 1999, with winds reaching 37.6 km/h.
What is the warmest month in Mirriah?
The warmest month in Mirriah is May (32.7 °C on average); the coldest is January (21.0 °C).
How much does it rain in Mirriah?
Mirriah receives on average 319 mm of precipitation per year, spread over about 49 rainy days.
Is it sunny in Mirriah?
Mirriah gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in Mirriah?
Yes: Mirriah has on average 234 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mirriah?
In Mirriah, between 1940 and 2025, the highest apparent temperature reached 46.4 °C on 24 April 2024, and the lowest was 0.8 °C on 26 December 1980.
Compare Mirriah with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mirriah