Juja climate — normals and trends
Juja (Kenya) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 18.0 °C and it receives 1,016 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 (19.5 °C on average) and the coldest is July (16.5 °C). Rainfall peaks in April.
Juja averages 0 frost days, 0 hot days (≥ 30 °C) and 183 rainy days per year.
Juja has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.1 °C (on 1 March 2019) and the coldest 6.9 °C (on 6 July 1944).
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
JujaKiambu County
- coords
- -1.10°, 37.01°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.0°C
Average daily high
23.6°C
Average daily low
13.6°C
Annual rainfall
1,016mm
Sunshine / day
10.3h
Mean relative humidity
76%
Average peak wind
11.8km/h
Seasonal range
3.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
183 d/yr
Annual snowfall
0.0 cm
Average feels-like high
24.4 °C
Average feels-like low
13.8 °C
Average peak gust
31.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
19.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.68 · 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
31.1 °C
1 March 2019
Coldest day
6.9 °C
6 July 1944
Wettest day
80 mm
12 April 2018
Windiest day
22.9 km/h
26 February 1946
Strongest gust
55.8 km/h
26 February 1946
Hottest feels-like
33.3 °C
25 February 2005
Coldest feels-like
4.6 °C
6 July 1944
Sunniest day
12.1 h
19 December 1942
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 | 25.6 °C | +0.9 °C | 41 mm | -3 mm |
| Feb | 27.1 °C | +1.1 °C | 4 mm | -37 mm |
| Mar | 26.9 °C | +1.1 °C | 67 mm | -19 mm |
| Apr | 25.0 °C | +0.9 °C | 194 mm | -5 mm |
| May | 24.1 °C | +1.2 °C | 140 mm | -25 mm |
| Jun | 22.8 °C | +0.8 °C | 50 mm | -10 mm |
| Jul | 21.8 °C | +0.5 °C | 28 mm | -12 mm |
| Aug | 21.9 °C | 0.0 °C | 54 mm | +19 mm |
| Sep | 25.6 °C | +1.7 °C | 21 mm | -7 mm |
| Oct | 25.4 °C | +1.1 °C | 114 mm | +26 mm |
| Nov | 23.9 °C | +1.1 °C | 47 mm | -107 mm |
| Dec | 24.9 °C | +1.6 °C | 58 mm | -17 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 Juja?
Juja has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 18.0 °C and it receives 1,016 mm of precipitation per year.
What is the hottest day ever recorded in Juja?
The hottest day measured in Juja between 1940 and 2025 was 1 March 2019, reaching 31.1 °C.
What is the coldest day in Juja?
The coldest day measured in Juja between 1940 and 2025 was 6 July 1944, at 6.9 °C.
Does it snow in Juja?
Almost never: Juja sees virtually no snow, with about 0 frost days per year.
Has the climate of Juja warmed?
Yes: Juja warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Juja?
The wettest day measured in Juja between 1940 and 2025 was 12 April 2018, with 80 mm of rain in 24 hours.
What was the windiest day in Juja?
The windiest day measured in Juja between 1940 and 2025 was 26 February 1946, with winds reaching 22.9 km/h.
What is the warmest month in Juja?
The warmest month in Juja is March (19.5 °C on average); the coldest is July (16.5 °C).
How much does it rain in Juja?
Juja receives on average 1,016 mm of precipitation per year, spread over about 183 rainy days.
Is it sunny in Juja?
Juja gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in Juja?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Juja.
What was the most extreme apparent temperature in Juja?
In Juja, between 1940 and 2025, the highest apparent temperature reached 33.3 °C on 25 February 2005, and the lowest was 4.6 °C on 6 July 1944.
Compare Juja with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Juja