Mertule Maryam climate — normals and trends
Mertule Maryam (Ethiopia) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 17.7 °C and it receives 1,099 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 (19.8 °C on average) and the coldest is August (15.9 °C). Rainfall peaks in July.
Mertule Maryam averages 0 frost days, 2 hot days (≥ 30 °C) and 126 rainy days per year.
Mertule Maryam has warmed by +3.4 °C between 1940 and 2025, or +0.40 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.2 °C (on 17 April 2024) and the coldest 4.5 °C (on 12 February 1983).
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
Mertule MaryamAmhara
- coords
- 10.83°, 38.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.7°C
Average daily high
23.3°C
Average daily low
12.6°C
Annual rainfall
1,099mm
Sunshine / day
10.5h
Mean relative humidity
57%
Average peak wind
9.0km/h
Seasonal range
3.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
126 d/yr
Annual snowfall
0.0 cm
Average feels-like high
22.9 °C
Average feels-like low
11.5 °C
Average peak gust
28.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
19.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.4 °C
since 1940
+0.4 °C per decade · r² = 0.81 · 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
32.2 °C
17 April 2024
Coldest day
4.5 °C
12 February 1983
Wettest day
61 mm
26 May 1947
Windiest day
20.9 km/h
13 July 1966
Strongest gust
74.5 km/h
22 April 1983
Hottest feels-like
32.2 °C
24 April 1998
Coldest feels-like
0.8 °C
9 January 1944
Sunniest day
12.3 h
5 May 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 | 24.8 °C | +1.2 °C | 0 mm | -35 mm |
| Feb | 26.0 °C | +1.4 °C | 2 mm | -54 mm |
| Mar | 25.9 °C | +0.8 °C | 146 mm | +58 mm |
| Apr | 26.2 °C | +0.5 °C | 21 mm | -53 mm |
| May | 25.9 °C | +0.3 °C | 48 mm | -19 mm |
| Jun | 26.3 °C | +1.9 °C | 25 mm | -48 mm |
| Jul | 22.2 °C | +1.4 °C | 253 mm | -22 mm |
| Aug | 20.3 °C | +0.2 °C | 304 mm | +35 mm |
| Sep | 21.4 °C | +0.4 °C | 112 mm | +20 mm |
| Oct | 22.6 °C | +0.1 °C | 4 mm | -22 mm |
| Nov | 23.3 °C | +0.4 °C | 3 mm | -16 mm |
| Dec | 24.0 °C | +1.1 °C | 4 mm | -20 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 Mertule Maryam?
Mertule Maryam has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 17.7 °C and it receives 1,099 mm of precipitation per year.
What is the hottest day ever recorded in Mertule Maryam?
The hottest day measured in Mertule Maryam between 1940 and 2025 was 17 April 2024, reaching 32.2 °C.
What is the coldest day in Mertule Maryam?
The coldest day measured in Mertule Maryam between 1940 and 2025 was 12 February 1983, at 4.5 °C.
Does it snow in Mertule Maryam?
Almost never: Mertule Maryam sees virtually no snow, with about 0 frost days per year.
Has the climate of Mertule Maryam warmed?
Yes: Mertule Maryam warmed by +3.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mertule Maryam?
The wettest day measured in Mertule Maryam between 1940 and 2025 was 26 May 1947, with 61 mm of rain in 24 hours.
What was the windiest day in Mertule Maryam?
The windiest day measured in Mertule Maryam between 1940 and 2025 was 13 July 1966, with winds reaching 20.9 km/h.
What is the warmest month in Mertule Maryam?
The warmest month in Mertule Maryam is May (19.8 °C on average); the coldest is August (15.9 °C).
How much does it rain in Mertule Maryam?
Mertule Maryam receives on average 1,099 mm of precipitation per year, spread over about 126 rainy days.
Is it sunny in Mertule Maryam?
Mertule Maryam gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Mertule Maryam?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Mertule Maryam.
What was the most extreme apparent temperature in Mertule Maryam?
In Mertule Maryam, between 1940 and 2025, the highest apparent temperature reached 32.2 °C on 24 April 1998, and the lowest was 0.8 °C on 9 January 1944.
Compare Mertule Maryam with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mertule Maryam