Dayē climate — normals and trends
Dayē (Ethiopia) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 19.4 °C and it receives 1,609 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 April (21.8 °C on average) and the coldest is August (16.9 °C). Rainfall peaks in August.
Dayē averages 0 frost days, 24 hot days (≥ 30 °C) and 162 rainy days per year.
Dayē has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.6 °C (on 14 May 2002) and the coldest 6.0 °C (on 7 January 2017).
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
DayēOromiya
- coords
- 9.88°, 38.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.4°C
Average daily high
25.1°C
Average daily low
14.0°C
Annual rainfall
1,609mm
Sunshine / day
10.7h
Mean relative humidity
59%
Average peak wind
7.7km/h
Seasonal range
4.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
24 d/yr
Rainy days (≥ 1 mm)
162 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.2 °C
Average feels-like low
13.3 °C
Average peak gust
27.3 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
21.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °C
since 1940
+0.4 °C per decade · r² = 0.80 · 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
34.6 °C
14 May 2002
Coldest day
6.0 °C
7 January 2017
Wettest day
48 mm
15 March 1950
Windiest day
17.8 km/h
25 May 2003
Strongest gust
58.3 km/h
26 July 1942
Hottest feels-like
35.7 °C
29 March 2016
Coldest feels-like
1.7 °C
7 January 2017
Sunniest day
12.3 h
16 May 1941
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 | 27.1 °C | +0.9 °C | 0 mm | -8 mm |
| Feb | 28.7 °C | +1.3 °C | 0 mm | -17 mm |
| Mar | 28.6 °C | +0.7 °C | 62 mm | +8 mm |
| Apr | 29.1 °C | +1.1 °C | 35 mm | -33 mm |
| May | 28.4 °C | +1.0 °C | 69 mm | -34 mm |
| Jun | 27.4 °C | +2.9 °C | 87 mm | -139 mm |
| Jul | 22.6 °C | +1.2 °C | 296 mm | -81 mm |
| Aug | 21.1 °C | -0.1 °C | 358 mm | -31 mm |
| Sep | 23.0 °C | +0.6 °C | 258 mm | -14 mm |
| Oct | 24.9 °C | +0.6 °C | 32 mm | -32 mm |
| Nov | 26.2 °C | +1.2 °C | 0 mm | -23 mm |
| Dec | 26.3 °C | +1.0 °C | 1 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 Dayē?
Dayē has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 19.4 °C and it receives 1,609 mm of precipitation per year.
What is the hottest day ever recorded in Dayē?
The hottest day measured in Dayē between 1940 and 2025 was 14 May 2002, reaching 34.6 °C.
What is the coldest day in Dayē?
The coldest day measured in Dayē between 1940 and 2025 was 7 January 2017, at 6.0 °C.
Does it snow in Dayē?
Almost never: Dayē sees virtually no snow, with about 0 frost days per year.
Has the climate of Dayē warmed?
Yes: Dayē warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dayē?
The wettest day measured in Dayē between 1940 and 2025 was 15 March 1950, with 48 mm of rain in 24 hours.
What was the windiest day in Dayē?
The windiest day measured in Dayē between 1940 and 2025 was 25 May 2003, with winds reaching 17.8 km/h.
What is the warmest month in Dayē?
The warmest month in Dayē is April (21.8 °C on average); the coldest is August (16.9 °C).
How much does it rain in Dayē?
Dayē receives on average 1,609 mm of precipitation per year, spread over about 162 rainy days.
Is it sunny in Dayē?
Dayē gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
Are there tropical nights in Dayē?
Yes: Dayē has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dayē?
In Dayē, between 1940 and 2025, the highest apparent temperature reached 35.7 °C on 29 March 2016, and the lowest was 1.7 °C on 7 January 2017.
Compare Dayē with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dayē