Meru climate — normals and trends

Q: What is the climate of Meru?

Meru has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 20.7 °C and it receives 558 mm of precipitation per year.

Q: What is the hottest day ever recorded in Meru?

The hottest day measured in Meru between 1940 and 2025 was 23 March 1988, reaching 32.6 °C.

Q: What is the coldest day in Meru?

The coldest day measured in Meru between 1940 and 2025 was 15 January 1968, at 10.2 °C.

Q: Does it snow in Meru?

Almost never: Meru sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Meru warmed?

Yes: Meru warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Meru?

The wettest day measured in Meru between 1940 and 2025 was 17 April 2018, with 103 mm of rain in 24 hours.

Q: What was the windiest day in Meru?

The windiest day measured in Meru between 1940 and 2025 was 15 June 2008, with winds reaching 26.1 km/h.

Q: What is the warmest month in Meru?

The warmest month in Meru is March (21.9 °C on average); the coldest is July (19.6 °C).

Q: How much does it rain in Meru?

Meru receives on average 558 mm of precipitation per year, spread over about 116 rainy days.

Q: Is it sunny in Meru?

Meru gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.

Meru (Kenya) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 20.7 °C and it receives 558 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 (21.9 °C on average) and the coldest is July (19.6 °C). Rainfall peaks in November.

Meru averages 0 frost days, 7 hot days (≥ 30 °C) and 116 rainy days per year.

Meru 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 32.6 °C (on 23 March 1988) and the coldest 10.2 °C (on 15 January 1968).

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

MeruMeru County

coords: 0.05°, 37.66°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthMarchColdest monthJulyWettest monthNovemberDriest monthAugust

Mean daily temperature

20.7°C

Average daily high

26.0°C

Average daily low

16.4°C

Annual rainfall

558mm

Sunshine / day

11.0h

Mean relative humidity

67%

Average peak wind

12.8km/h

Seasonal range

2.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

7 d/yr

Rainy days (≥ 1 mm)

116 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.9 °C

Average feels-like low

16.6 °C

Average peak gust

36.1 km/h

Tropical nights (≥ 20 °C)

1 d/yr

Solar radiation

20.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.59 · p = < 0.001

19402025

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

32.6 °C

23 March 1988

Coldest day

10.2 °C

15 January 1968

Wettest day

103 mm

17 April 2018

Windiest day

26.1 km/h

15 June 2008

Strongest gust

62.6 km/h

2 March 1995

Hottest feels-like

34.7 °C

29 March 2016

Coldest feels-like

7.4 °C

2 January 2012

Sunniest day

12.0 h

9 April 1944

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	32.2 °C14 March 2025	13.6 °C7 January 2025	21.6 °C	548 mm	21
2024	32.0 °C17 March 2024	13.7 °C24 January 2024	21.7 °C	872 mm	14
2023	30.8 °C3 February 2023	13.8 °C15 January 2023	21.3 °C	477 mm	9
2022	31.3 °C16 March 2022	13.6 °C18 August 2022	21.4 °C	187 mm	27
2021	30.8 °C27 February 2021	13.9 °C28 August 2021	21.6 °C	397 mm	10
2020	30.6 °C7 October 2020	14.0 °C11 February 2020	21.5 °C	540 mm	8
2019	32.4 °C1 March 2019	13.7 °C19 December 2019	22.0 °C	601 mm	28
2018	30.3 °C25 February 2018	12.7 °C9 February 2018	21.0 °C	953 mm	5
2017	31.4 °C7 March 2017	13.6 °C17 January 2017	21.6 °C	370 mm	22
2016	31.8 °C29 March 2016	13.8 °C6 December 2016	21.2 °C	493 mm	9
2015	31.5 °C13 February 2015	13.1 °C1 January 2015	21.8 °C	545 mm	17
2014	30.8 °C4 March 2014	13.2 °C25 January 2014	21.4 °C	368 mm	2
2013	30.9 °C5 March 2013	13.5 °C5 July 2013	21.1 °C	529 mm	12
2012	31.1 °C15 March 2012	10.3 °C2 January 2012	21.2 °C	491 mm	8
2011	32.3 °C11 February 2011	12.8 °C7 February 2011	21.5 °C	502 mm	15
2010	30.0 °C10 October 2010	14.0 °C16 August 2010	21.5 °C	377 mm	1
2009	31.4 °C22 March 2009	13.2 °C12 January 2009	21.7 °C	285 mm	8
2008	30.5 °C21 March 2008	13.4 °C9 July 2008	21.3 °C	373 mm	5
2007	31.7 °C24 February 2007	13.7 °C17 December 2007	21.3 °C	375 mm	9
2006	31.5 °C18 February 2006	14.4 °C5 January 2006	21.5 °C	578 mm	8
2005	31.4 °C22 February 2005	11.6 °C3 January 2005	21.3 °C	399 mm	15
2004	30.8 °C5 March 2004	13.1 °C5 July 2004	21.1 °C	507 mm	3
2003	31.5 °C23 February 2003	11.6 °C14 January 2003	21.1 °C	489 mm	16
2002	30.3 °C12 February 2002	13.8 °C23 July 2002	20.9 °C	548 mm	1
2001	30.8 °C4 March 2001	13.5 °C3 March 2001	20.9 °C	498 mm	2
2000	31.0 °C27 February 2000	12.7 °C27 January 2000	21.1 °C	192 mm	14
1999	30.9 °C10 February 1999	13.8 °C13 December 1999	21.0 °C	271 mm	4
1998	30.7 °C31 March 1998	13.8 °C3 December 1998	20.7 °C	677 mm	1
1997	31.7 °C7 March 1997	14.5 °C13 January 1997	21.1 °C	700 mm	8
1996	31.6 °C22 February 1996	13.1 °C4 August 1996	20.9 °C	431 mm	2
1995	30.0 °C1 March 1995	13.0 °C20 January 1995	20.7 °C	406 mm	1
1994	30.7 °C8 March 1994	12.9 °C31 December 1994	20.8 °C	551 mm	9
1993	29.7 °C11 March 1993	12.9 °C21 February 1993	20.3 °C	500 mm	0
1992	31.8 °C28 March 1992	13.1 °C1 August 1992	20.5 °C	384 mm	7
1991	31.1 °C23 March 1991	13.2 °C19 January 1991	20.5 °C	383 mm	10
1990	29.3 °C6 February 1990	12.3 °C27 June 1990	20.2 °C	579 mm	0
1989	29.6 °C2 March 1989	12.5 °C21 June 1989	20.1 °C	557 mm	0
1988	32.6 °C23 March 1988	12.7 °C13 December 1988	20.8 °C	605 mm	12
1987	32.1 °C5 March 1987	11.6 °C1 February 1987	21.2 °C	424 mm	9
1986	31.4 °C14 March 1986	12.6 °C14 August 1986	20.4 °C	635 mm	9
1985	32.4 °C16 February 1985	12.9 °C8 June 1985	20.3 °C	520 mm	5
1984	31.0 °C12 March 1984	12.4 °C13 February 1984	20.6 °C	373 mm	8
1983	30.4 °C23 March 1983	12.2 °C10 January 1983	20.9 °C	612 mm	4
1982	31.8 °C3 March 1982	12.9 °C31 December 1982	20.5 °C	636 mm	10
1981	31.7 °C27 February 1981	12.4 °C12 December 1981	20.3 °C	744 mm	7
1980	31.8 °C10 March 1980	11.9 °C23 January 1980	20.8 °C	403 mm	8
1979	29.3 °C17 September 1979	13.2 °C27 November 1979	19.8 °C	802 mm	0
1978	29.0 °C19 March 1978	11.2 °C4 February 1978	19.7 °C	630 mm	0
1977	29.4 °C23 February 1977	12.4 °C26 August 1977	20.1 °C	1,174 mm	0
1976	30.1 °C22 March 1976	12.1 °C16 January 1976	20.2 °C	507 mm	1
1975	31.6 °C12 March 1975	12.0 °C17 December 1975	20.4 °C	401 mm	3
1974	30.8 °C27 February 1974	12.7 °C30 July 1974	20.2 °C	538 mm	1
1973	31.8 °C6 March 1973	12.6 °C16 December 1973	20.9 °C	553 mm	23
1972	30.8 °C22 September 1972	12.5 °C28 July 1972	20.7 °C	489 mm	3
1971	31.7 °C13 February 1971	12.2 °C18 February 1971	20.3 °C	476 mm	10
1970	30.7 °C26 February 1970	11.5 °C18 September 1970	20.4 °C	519 mm	4
1969	30.5 °C26 September 1969	11.0 °C22 August 1969	20.3 °C	418 mm	3
1968	31.4 °C29 January 1968	10.2 °C15 January 1968	19.8 °C	744 mm	3
1967	31.6 °C24 March 1967	12.1 °C9 December 1967	20.4 °C	700 mm	15
1966	30.7 °C26 September 1966	12.8 °C23 December 1966	20.8 °C	436 mm	3
1965	30.2 °C17 February 1965	12.0 °C12 July 1965	20.3 °C	479 mm	3
1964	29.6 °C24 February 1964	11.5 °C31 August 1964	19.7 °C	686 mm	0
1963	28.8 °C8 September 1963	11.2 °C28 July 1963	19.9 °C	895 mm	0
1962	28.9 °C21 September 1962	12.0 °C21 January 1962	20.1 °C	524 mm	0
1961	30.9 °C30 January 1961	11.1 °C5 January 1961	20.7 °C	694 mm	7
1960	30.6 °C22 February 1960	10.8 °C20 January 1960	20.5 °C	478 mm	5
1959	32.0 °C18 March 1959	12.2 °C10 August 1959	20.5 °C	698 mm	15
1958	30.0 °C14 March 1958	11.4 °C6 January 1958	20.2 °C	725 mm	1
1957	29.4 °C11 February 1957	11.5 °C15 February 1957	20.0 °C	851 mm	0
1956	30.3 °C23 September 1956	13.0 °C14 July 1956	20.2 °C	448 mm	1
1955	29.3 °C7 March 1955	13.5 °C10 February 1955	20.1 °C	579 mm	0
1954	29.7 °C16 March 1954	12.1 °C12 January 1954	19.8 °C	666 mm	0
1953	29.0 °C10 October 1953	13.0 °C10 January 1953	19.3 °C	999 mm	0
1952	29.2 °C14 September 1952	13.0 °C1 September 1952	19.6 °C	753 mm	0
1951	29.4 °C7 September 1951	13.5 °C16 July 1951	19.8 °C	1,188 mm	0
1950	29.2 °C18 February 1950	12.3 °C19 August 1950	19.5 °C	877 mm	0
1949	31.7 °C8 February 1949	13.3 °C31 July 1949	20.5 °C	517 mm	4
1948	29.4 °C24 September 1948	11.7 °C2 January 1948	20.1 °C	527 mm	0
1947	28.7 °C6 October 1947	13.0 °C19 September 1947	19.7 °C	902 mm	0
1946	32.1 °C21 February 1946	13.3 °C4 August 1946	21.1 °C	270 mm	27
1945	29.7 °C16 December 1945	12.9 °C2 January 1945	20.5 °C	356 mm	0
1944	31.9 °C21 February 1944	12.1 °C11 July 1944	20.8 °C	336 mm	14
1943	30.2 °C26 January 1943	12.6 °C21 July 1943	20.5 °C	327 mm	5
1942	30.0 °C12 September 1942	12.0 °C6 January 1942	20.6 °C	294 mm	2
1941	32.0 °C27 March 1941	11.8 °C10 December 1941	20.4 °C	840 mm	6
1940	28.3 °C24 February 1940	12.9 °C10 December 1940	20.1 °C	847 mm	0

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?

Year

Across the whole year

Average daily high

27.0 °C

+1.0 °C

Hot days (≥ 30 °C)

21 d/yr

+14

Frost days (< 0 °C)

0 d/yr

Annual rainfall

548 mm

-10 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.1 °C	+1.9 °C	26 mm	-14 mm
Feb	29.3 °C	+1.8 °C	6 mm	-24 mm
Mar	28.2 °C	+0.7 °C	72 mm	+19 mm
Apr	26.8 °C	+0.5 °C	112 mm	+7 mm
May	27.5 °C	+1.7 °C	22 mm	-32 mm
Jun	26.9 °C	+1.7 °C	5 mm	-10 mm
Jul	25.3 °C	+0.7 °C	4 mm	-8 mm
Aug	24.9 °C	-0.4 °C	20 mm	+8 mm
Sep	28.1 °C	+1.1 °C	45 mm	+32 mm
Oct	27.3 °C	+0.5 °C	166 mm	+120 mm
Nov	25.6 °C	+1.0 °C	22 mm	-87 mm
Dec	26.6 °C	+1.8 °C	48 mm	-20 mm

The year's extremes

Hottest day

32.2 °C

14 Mar 2025

Coldest day

13.6 °C

7 Jan 2025

Wettest day

92.5 mm

29 Oct 2025

Windiest day

20.6 km/h

20 Sep 2025

Strongest gust

52.2 km/h

20 Sep 2025

Hottest feels-like

33.2 °C

14 Mar 2025

Coldest feels-like

12.1 °C

7 Jan 2025

Sunniest day

11.8 h

6 Jan 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Meru?

Meru has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 20.7 °C and it receives 558 mm of precipitation per year.

What is the hottest day ever recorded in Meru?

The hottest day measured in Meru between 1940 and 2025 was 23 March 1988, reaching 32.6 °C.

What is the coldest day in Meru?

The coldest day measured in Meru between 1940 and 2025 was 15 January 1968, at 10.2 °C.

Does it snow in Meru?

Almost never: Meru sees virtually no snow, with about 0 frost days per year.

Has the climate of Meru warmed?

Yes: Meru warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Meru?

The wettest day measured in Meru between 1940 and 2025 was 17 April 2018, with 103 mm of rain in 24 hours.

What was the windiest day in Meru?

The windiest day measured in Meru between 1940 and 2025 was 15 June 2008, with winds reaching 26.1 km/h.

What is the warmest month in Meru?

The warmest month in Meru is March (21.9 °C on average); the coldest is July (19.6 °C).

How much does it rain in Meru?

Meru receives on average 558 mm of precipitation per year, spread over about 116 rainy days.

Is it sunny in Meru?

Meru gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.

Are there tropical nights in Meru?

Yes: Meru has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Meru?

In Meru, between 1940 and 2025, the highest apparent temperature reached 34.7 °C on 29 March 2016, and the lowest was 7.4 °C on 2 January 2012.

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