Ruaha climate — normals and trends

Q: What is the climate of Ruaha?

Ruaha has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.4 °C and it receives 1,209 mm of precipitation per year.

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

The hottest day measured in Ruaha between 1940 and 2025 was 22 January 1958, reaching 36.9 °C.

Q: What is the coldest day in Ruaha?

The coldest day measured in Ruaha between 1940 and 2025 was 27 July 1975, at 11.3 °C.

Q: Does it snow in Ruaha?

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

Q: Has the climate of Ruaha warmed?

Yes: Ruaha warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Ruaha?

The wettest day measured in Ruaha between 1940 and 2025 was 17 February 1941, with 114 mm of rain in 24 hours.

Q: What was the windiest day in Ruaha?

The windiest day measured in Ruaha between 1940 and 2025 was 13 April 1941, with winds reaching 24.8 km/h.

Q: What is the warmest month in Ruaha?

The warmest month in Ruaha is December (25.5 °C on average); the coldest is July (20.8 °C).

Q: How much does it rain in Ruaha?

Ruaha receives on average 1,209 mm of precipitation per year, spread over about 167 rainy days.

Q: Is it sunny in Ruaha?

Ruaha gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

Ruaha (Tanzania) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 23.4 °C and it receives 1,209 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 December (25.5 °C on average) and the coldest is July (20.8 °C). Rainfall peaks in March.

Ruaha averages 0 frost days, 89 hot days (≥ 30 °C) and 167 rainy days per year.

Ruaha has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.9 °C (on 22 January 1958) and the coldest 11.3 °C (on 27 July 1975).

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

RuahaMorogoro

coords: -7.66°, 36.98°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthDecemberColdest monthJulyWettest monthMarchDriest monthSeptember

Mean daily temperature

23.4°C

Average daily high

28.2°C

Average daily low

19.3°C

Annual rainfall

1,209mm

Sunshine / day

10.8h

Mean relative humidity

73%

Average peak wind

9.4km/h

Seasonal range

4.7°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

89 d/yr

Rainy days (≥ 1 mm)

167 d/yr

Annual snowfall

0.0 cm

Average feels-like high

31.1 °C

Average feels-like low

21.5 °C

Average peak gust

29.3 km/h

Tropical nights (≥ 20 °C)

170 d/yr

Solar radiation

19.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.1 °C

since 1940

+0.1 °C per decade · r² = 0.41 · 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

36.9 °C

22 January 1958

Coldest day

11.3 °C

27 July 1975

Wettest day

114 mm

17 February 1941

Windiest day

24.8 km/h

13 April 1941

Strongest gust

56.2 km/h

21 June 1987

Hottest feels-like

40.8 °C

22 January 1958

Coldest feels-like

8.6 °C

27 July 1975

Sunniest day

12.4 h

25 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.6 °C12 January 2025	13.6 °C5 August 2025	24.3 °C	1,011 mm	148
2024	35.8 °C29 November 2024	14.2 °C15 June 2024	24.1 °C	1,605 mm	103
2023	34.4 °C29 December 2023	14.5 °C16 July 2023	24.3 °C	1,168 mm	113
2022	35.9 °C7 January 2022	14.2 °C3 September 2022	23.8 °C	1,176 mm	104
2021	36.2 °C24 November 2021	13.7 °C4 July 2021	24.1 °C	894 mm	137
2020	34.9 °C15 December 2020	14.2 °C25 July 2020	24.1 °C	1,289 mm	114
2019	34.4 °C17 February 2019	13.1 °C24 July 2019	24.1 °C	1,532 mm	99
2018	35.8 °C6 December 2018	14.1 °C8 June 2018	23.9 °C	1,324 mm	106
2017	35.7 °C7 January 2017	14.4 °C14 July 2017	24.1 °C	1,120 mm	127
2016	35.8 °C25 December 2016	13.5 °C17 June 2016	24.1 °C	1,128 mm	121
2015	34.2 °C23 November 2015	14.1 °C17 July 2015	24.2 °C	1,098 mm	130
2014	35.9 °C20 December 2014	13.5 °C13 July 2014	24.0 °C	1,243 mm	119
2013	36.1 °C17 December 2013	12.9 °C14 July 2013	24.2 °C	961 mm	132
2012	35.2 °C10 December 2012	13.5 °C20 July 2012	24.0 °C	986 mm	127
2011	35.2 °C4 December 2011	12.7 °C12 July 2011	23.8 °C	1,222 mm	101
2010	36.3 °C4 December 2010	13.7 °C8 June 2010	24.4 °C	871 mm	143
2009	36.1 °C11 January 2009	13.7 °C4 July 2009	24.2 °C	780 mm	117
2008	34.9 °C4 January 2008	13.1 °C13 June 2008	23.5 °C	1,225 mm	94
2007	34.5 °C28 November 2007	14.4 °C24 June 2007	23.9 °C	988 mm	121
2006	36.3 °C11 February 2006	12.4 °C3 July 2006	23.5 °C	1,293 mm	94
2005	35.3 °C12 December 2005	14.8 °C3 July 2005	24.0 °C	868 mm	119
2004	35.0 °C25 November 2004	13.6 °C5 July 2004	23.5 °C	1,127 mm	87
2003	34.6 °C30 November 2003	14.3 °C14 June 2003	24.0 °C	809 mm	143
2002	35.8 °C18 December 2002	13.7 °C16 June 2002	23.1 °C	1,431 mm	62
2001	34.2 °C9 December 2001	13.6 °C16 July 2001	23.1 °C	1,071 mm	81
2000	34.8 °C25 January 2000	13.9 °C1 July 2000	23.4 °C	1,025 mm	115
1999	34.2 °C1 March 1999	14.4 °C10 July 1999	23.1 °C	951 mm	96
1998	35.2 °C22 December 1998	14.0 °C3 July 1998	23.6 °C	1,195 mm	79
1997	34.5 °C9 January 1997	14.3 °C27 July 1997	23.3 °C	1,375 mm	73
1996	34.0 °C5 December 1996	12.8 °C1 July 1996	22.9 °C	1,244 mm	78
1995	34.7 °C7 December 1995	13.2 °C14 June 1995	23.3 °C	1,269 mm	85
1994	35.9 °C1 January 1994	12.9 °C15 July 1994	23.4 °C	1,265 mm	90
1993	35.2 °C19 December 1993	13.4 °C24 July 1993	23.3 °C	953 mm	93
1992	32.8 °C24 January 1992	13.7 °C6 July 1992	23.1 °C	1,320 mm	62
1991	33.8 °C26 February 1991	12.7 °C22 July 1991	23.6 °C	1,265 mm	92
1990	34.0 °C23 December 1990	14.0 °C6 July 1990	23.2 °C	1,142 mm	73
1989	33.4 °C13 November 1989	14.5 °C10 July 1989	22.8 °C	1,575 mm	47
1988	33.8 °C5 January 1988	14.7 °C29 July 1988	23.7 °C	930 mm	100
1987	34.6 °C9 December 1987	12.6 °C13 July 1987	23.4 °C	1,060 mm	62
1986	32.6 °C1 November 1986	12.5 °C9 July 1986	22.7 °C	1,382 mm	43
1985	32.9 °C31 January 1985	11.7 °C19 July 1985	22.7 °C	1,269 mm	44
1984	31.2 °C17 December 1984	13.3 °C10 August 1984	22.4 °C	1,580 mm	17
1983	36.0 °C10 December 1983	12.8 °C21 July 1983	23.3 °C	1,227 mm	71
1982	33.8 °C23 February 1982	12.5 °C19 July 1982	23.1 °C	1,486 mm	57
1981	34.4 °C28 November 1981	12.4 °C27 June 1981	23.0 °C	1,111 mm	75
1980	32.6 °C17 October 1980	12.7 °C16 June 1980	23.0 °C	1,219 mm	42
1979	35.1 °C13 December 1979	13.5 °C15 July 1979	22.9 °C	1,628 mm	70
1978	33.9 °C15 November 1978	13.9 °C16 July 1978	23.2 °C	1,458 mm	74
1977	33.8 °C4 November 1977	13.5 °C30 July 1977	23.3 °C	1,410 mm	76
1976	35.6 °C16 December 1976	12.7 °C19 July 1976	23.4 °C	1,076 mm	92
1975	35.3 °C22 February 1975	11.3 °C27 July 1975	23.2 °C	1,217 mm	95
1974	35.0 °C5 December 1974	11.8 °C21 June 1974	23.3 °C	934 mm	116
1973	34.0 °C29 December 1973	13.1 °C16 July 1973	23.1 °C	1,475 mm	76
1972	33.1 °C28 January 1972	13.1 °C26 July 1972	22.8 °C	1,733 mm	41
1971	36.3 °C14 December 1971	12.8 °C12 June 1971	22.9 °C	1,339 mm	72
1970	35.5 °C1 January 1970	14.0 °C16 September 1970	23.3 °C	1,328 mm	75
1969	36.0 °C29 December 1969	13.2 °C11 July 1969	23.7 °C	917 mm	120
1968	33.7 °C30 December 1968	12.1 °C15 July 1968	22.7 °C	1,469 mm	56
1967	33.4 °C25 January 1967	13.5 °C21 July 1967	23.2 °C	1,397 mm	97
1966	35.2 °C24 December 1966	13.4 °C28 July 1966	23.4 °C	915 mm	103
1965	33.5 °C20 November 1965	12.0 °C5 July 1965	22.5 °C	1,452 mm	38
1964	33.8 °C10 December 1964	12.5 °C29 June 1964	22.8 °C	1,134 mm	68
1963	33.2 °C23 December 1963	12.7 °C15 August 1963	22.5 °C	1,390 mm	44
1962	34.0 °C26 November 1962	13.1 °C26 June 1962	22.9 °C	1,178 mm	68
1961	34.4 °C11 January 1961	13.9 °C10 August 1961	23.1 °C	1,960 mm	49
1960	36.3 °C5 January 1960	13.3 °C7 July 1960	23.3 °C	1,337 mm	90
1959	35.0 °C26 December 1959	14.7 °C18 July 1959	23.5 °C	1,395 mm	101
1958	36.9 °C22 January 1958	12.1 °C19 July 1958	23.5 °C	1,125 mm	114
1957	33.9 °C7 December 1957	12.8 °C26 June 1957	22.8 °C	1,840 mm	71
1956	33.8 °C22 December 1956	11.7 °C14 July 1956	22.7 °C	1,309 mm	74
1955	34.6 °C4 January 1955	11.5 °C11 August 1955	22.8 °C	1,383 mm	83
1954	34.6 °C11 December 1954	13.1 °C25 July 1954	23.1 °C	986 mm	79
1953	32.7 °C3 November 1953	12.8 °C6 July 1953	22.6 °C	1,553 mm	51
1952	33.6 °C23 March 1952	13.5 °C17 July 1952	23.2 °C	802 mm	94
1951	31.7 °C7 September 1951	12.9 °C5 August 1951	22.7 °C	1,294 mm	31
1950	34.2 °C25 October 1950	13.4 °C29 May 1950	22.8 °C	1,094 mm	74
1949	34.0 °C4 November 1949	13.5 °C31 July 1949	23.2 °C	991 mm	92
1948	35.0 °C2 December 1948	13.8 °C6 July 1948	23.4 °C	825 mm	97
1947	35.0 °C1 March 1947	13.6 °C18 July 1947	23.1 °C	1,070 mm	93
1946	35.1 °C21 February 1946	13.3 °C3 June 1946	23.9 °C	815 mm	150
1945	34.8 °C1 January 1945	13.3 °C28 August 1945	22.6 °C	1,423 mm	86
1944	36.5 °C2 January 1944	12.4 °C5 July 1944	23.7 °C	752 mm	135
1943	36.2 °C15 January 1943	12.6 °C27 July 1943	23.5 °C	701 mm	120
1942	34.5 °C14 December 1942	12.1 °C28 July 1942	23.3 °C	898 mm	117
1941	35.0 °C25 March 1941	13.5 °C6 July 1941	23.0 °C	1,557 mm	77
1940	35.3 °C30 December 1940	13.5 °C16 July 1940	23.2 °C	1,324 mm	83

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

29.3 °C

+1.1 °C

Hot days (≥ 30 °C)

148 d/yr

+59

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1011 mm

-198 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	32.4 °C	+2.5 °C	97 mm	-110 mm
Feb	32.5 °C	+2.8 °C	85 mm	-117 mm
Mar	29.9 °C	+1.3 °C	254 mm	+37 mm
Apr	27.6 °C	+0.6 °C	261 mm	+72 mm
May	26.5 °C	+0.4 °C	78 mm	-5 mm
Jun	25.9 °C	+0.2 °C	20 mm	-2 mm
Jul	25.9 °C	+0.1 °C	12 mm	-7 mm
Aug	26.7 °C	+0.1 °C	9 mm	-10 mm
Sep	29.5 °C	+1.2 °C	8 mm	-9 mm
Oct	30.4 °C	+0.6 °C	27 mm	-10 mm
Nov	32.3 °C	+1.6 °C	33 mm	-31 mm
Dec	32.1 °C	+1.4 °C	128 mm	-6 mm

The year's extremes

Hottest day

35.6 °C

12 Jan 2025

Coldest day

13.6 °C

5 Aug 2025

Wettest day

35.1 mm

28 Dec 2025

Windiest day

19.7 km/h

24 May 2025

Strongest gust

49.3 km/h

24 May 2025

Hottest feels-like

40.8 °C

12 Jan 2025

Coldest feels-like

11.8 °C

5 Aug 2025

Sunniest day

12.4 h

25 Dec 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 Ruaha?

Ruaha has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.4 °C and it receives 1,209 mm of precipitation per year.

What is the hottest day ever recorded in Ruaha?

The hottest day measured in Ruaha between 1940 and 2025 was 22 January 1958, reaching 36.9 °C.

What is the coldest day in Ruaha?

The coldest day measured in Ruaha between 1940 and 2025 was 27 July 1975, at 11.3 °C.

Does it snow in Ruaha?

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

Has the climate of Ruaha warmed?

Yes: Ruaha warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Ruaha?

The wettest day measured in Ruaha between 1940 and 2025 was 17 February 1941, with 114 mm of rain in 24 hours.

What was the windiest day in Ruaha?

The windiest day measured in Ruaha between 1940 and 2025 was 13 April 1941, with winds reaching 24.8 km/h.

What is the warmest month in Ruaha?

The warmest month in Ruaha is December (25.5 °C on average); the coldest is July (20.8 °C).

How much does it rain in Ruaha?

Ruaha receives on average 1,209 mm of precipitation per year, spread over about 167 rainy days.

Is it sunny in Ruaha?

Ruaha gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

Are there tropical nights in Ruaha?

Yes: Ruaha has on average 170 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Ruaha?

In Ruaha, between 1940 and 2025, the highest apparent temperature reached 40.8 °C on 22 January 1958, and the lowest was 8.6 °C on 27 July 1975.

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