Mairo Inya climate — normals and trends
Mairo Inya (Kenya) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 15.5 °C and it receives 1,327 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 March (16.6 °C on average) and the coldest is July (14.4 °C). Rainfall peaks in April.
Mairo Inya averages 0 frost days, 0 hot days (≥ 30 °C) and 167 rainy days per year.
Mairo Inya has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The hottest day of the period reached 28.7 °C (on 8 April 2019) and the coldest 3.0 °C (on 2 January 2012).
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
Mairo InyaNyandarua County
- coords
- 0.03°, 36.41°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.5°C
Average daily high
21.4°C
Average daily low
10.6°C
Annual rainfall
1,327mm
Sunshine / day
10.8h
Mean relative humidity
71%
Average peak wind
13.2km/h
Seasonal range
2.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
167 d/yr
Annual snowfall
0.0 cm
Average feels-like high
21.2 °C
Average feels-like low
9.6 °C
Average peak gust
33.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
21.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.75 · 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
28.7 °C
8 April 2019
Coldest day
3.0 °C
2 January 2012
Wettest day
104 mm
1 May 1997
Windiest day
28.2 km/h
11 April 1984
Strongest gust
77.8 km/h
1 May 2013
Hottest feels-like
28.1 °C
25 February 2005
Coldest feels-like
-0.7 °C
2 January 2012
Sunniest day
12.0 h
4 May 1972
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 | 23.4 °C | +1.4 °C | 51 mm | +15 mm |
| Feb | 25.1 °C | +1.9 °C | 1 mm | -38 mm |
| Mar | 24.2 °C | +0.7 °C | 114 mm | +36 mm |
| Apr | 23.4 °C | +1.2 °C | 121 mm | -56 mm |
| May | 23.5 °C | +1.9 °C | 64 mm | -84 mm |
| Jun | 22.8 °C | +2.0 °C | 47 mm | -50 mm |
| Jul | 21.4 °C | +1.8 °C | 114 mm | -46 mm |
| Aug | 19.9 °C | +0.2 °C | 227 mm | +50 mm |
| Sep | 22.1 °C | +1.0 °C | 127 mm | +28 mm |
| Oct | 21.4 °C | -0.1 °C | 156 mm | +38 mm |
| Nov | 21.8 °C | +1.4 °C | 116 mm | -18 mm |
| Dec | 22.4 °C | +1.7 °C | 49 mm | -16 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 Mairo Inya?
Mairo Inya has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 15.5 °C and it receives 1,327 mm of precipitation per year.
What is the hottest day ever recorded in Mairo Inya?
The hottest day measured in Mairo Inya between 1940 and 2025 was 8 April 2019, reaching 28.7 °C.
What is the coldest day in Mairo Inya?
The coldest day measured in Mairo Inya between 1940 and 2025 was 2 January 2012, at 3.0 °C.
Does it snow in Mairo Inya?
Almost never: Mairo Inya sees virtually no snow, with about 0 frost days per year.
Has the climate of Mairo Inya warmed?
Yes: Mairo Inya warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mairo Inya?
The wettest day measured in Mairo Inya between 1940 and 2025 was 1 May 1997, with 104 mm of rain in 24 hours.
What was the windiest day in Mairo Inya?
The windiest day measured in Mairo Inya between 1940 and 2025 was 11 April 1984, with winds reaching 28.2 km/h.
What is the warmest month in Mairo Inya?
The warmest month in Mairo Inya is March (16.6 °C on average); the coldest is July (14.4 °C).
How much does it rain in Mairo Inya?
Mairo Inya receives on average 1,327 mm of precipitation per year, spread over about 167 rainy days.
Is it sunny in Mairo Inya?
Mairo Inya gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Mairo Inya?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Mairo Inya.
What was the most extreme apparent temperature in Mairo Inya?
In Mairo Inya, between 1940 and 2025, the highest apparent temperature reached 28.1 °C on 25 February 2005, and the lowest was -0.7 °C on 2 January 2012.
Compare Mairo Inya with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mairo Inya