Mareth climate — normals and trends

Q: What is the climate of Mareth?

Mareth has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 19.9 °C and it receives 143 mm of precipitation per year.

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

The hottest day measured in Mareth between 1940 and 2025 was 29 July 2023, reaching 48.0 °C.

Q: What is the coldest day in Mareth?

The coldest day measured in Mareth between 1940 and 2025 was 3 January 1942, at -3.4 °C.

Q: Does it snow in Mareth?

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

Q: Has the climate of Mareth warmed?

Yes: Mareth warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Mareth?

The wettest day measured in Mareth between 1940 and 2025 was 25 November 1977, with 60 mm of rain in 24 hours.

Q: What was the windiest day in Mareth?

The windiest day measured in Mareth between 1940 and 2025 was 12 December 1967, with winds reaching 67.4 km/h.

Q: What is the warmest month in Mareth?

The warmest month in Mareth is August (28.7 °C on average); the coldest is January (11.2 °C).

Q: How much does it rain in Mareth?

Mareth receives on average 143 mm of precipitation per year, spread over about 27 rainy days.

Q: Is it sunny in Mareth?

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

Mareth (Tunisia) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 19.9 °C and it receives 143 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 August (28.7 °C on average) and the coldest is January (11.2 °C). Rainfall peaks in October.

Mareth averages 0 frost days, 109 hot days (≥ 30 °C) and 27 rainy days per year.

Mareth has warmed by +3.0 °C between 1940 and 2025, or +0.36 °C per decade. This trend is statistically significant.

The hottest day of the period reached 48.0 °C (on 29 July 2023) and the coldest -3.4 °C (on 3 January 1942).

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

MarethGabès Governorate

coords: 33.62°, 10.29°
period: 1940–2025 · 86 yrs

BWhHot desertWarmest monthAugustColdest monthJanuaryWettest monthOctoberDriest monthJuly

Mean daily temperature

19.9°C

Average daily high

25.0°C

Average daily low

15.2°C

Annual rainfall

143mm

Sunshine / day

11.0h

Mean relative humidity

58%

Average peak wind

22.1km/h

Seasonal range

17.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

109 d/yr

Rainy days (≥ 1 mm)

27 d/yr

Annual snowfall

0.0 cm

Average feels-like high

23.4 °C

Average feels-like low

13.8 °C

Average peak gust

38.2 km/h

Tropical nights (≥ 20 °C)

104 d/yr

Solar radiation

19.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+3.0 °C

since 1940

+0.4 °C per decade · r² = 0.78 · 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

48.0 °C

29 July 2023

Coldest day

-3.4 °C

3 January 1942

Wettest day

60 mm

25 November 1977

Windiest day

67.4 km/h

12 December 1967

Strongest gust

106.9 km/h

12 December 1967

Hottest feels-like

48.5 °C

24 July 1997

Coldest feels-like

-7.8 °C

4 January 1941

Snowiest day

0.6 cm

4 December 1973

Sunniest day

13.4 h

20 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	45.7 °C25 July 2025	5.5 °C16 January 2025	21.7 °C	118 mm	140	0
2024	46.8 °C1 July 2024	5.4 °C10 January 2024	22.2 °C	137 mm	136	0
2023	48.0 °C29 July 2023	1.8 °C24 January 2023	21.7 °C	119 mm	136	0
2022	45.9 °C18 August 2022	3.3 °C21 January 2022	22.1 °C	49 mm	146	0
2021	46.7 °C4 July 2021	3.8 °C4 January 2021	22.0 °C	34 mm	137	0
2020	44.8 °C19 June 2020	4.6 °C7 February 2020	21.3 °C	113 mm	129	0
2019	45.6 °C14 July 2019	4.2 °C15 February 2019	21.0 °C	167 mm	132	0
2018	45.4 °C22 July 2018	4.2 °C28 December 2018	21.3 °C	97 mm	121	0
2017	44.9 °C24 July 2017	2.4 °C19 January 2017	20.5 °C	215 mm	111	0
2016	45.5 °C16 June 2016	5.0 °C17 January 2016	21.6 °C	71 mm	136	0
2015	43.0 °C31 July 2015	3.7 °C1 January 2015	20.7 °C	119 mm	116	0
2014	44.4 °C7 July 2014	3.4 °C31 December 2014	21.4 °C	128 mm	131	0
2013	42.9 °C21 July 2013	4.0 °C27 January 2013	21.1 °C	87 mm	128	0
2012	45.5 °C12 July 2012	1.4 °C8 February 2012	21.2 °C	118 mm	146	0
2011	44.5 °C18 July 2011	4.0 °C1 January 2011	20.4 °C	118 mm	114	0
2010	44.8 °C10 June 2010	2.5 °C3 February 2010	21.4 °C	91 mm	131	0
2009	41.9 °C14 August 2009	4.2 °C17 February 2009	20.8 °C	156 mm	119	0
2008	45.7 °C13 July 2008	3.4 °C5 December 2008	20.9 °C	81 mm	123	0
2007	44.9 °C20 June 2007	1.5 °C18 December 2007	20.8 °C	270 mm	120	0
2006	43.6 °C27 June 2006	2.5 °C26 January 2006	20.9 °C	160 mm	129	0
2005	44.9 °C2 August 2005	2.2 °C27 January 2005	20.5 °C	134 mm	114	0
2004	43.8 °C10 August 2004	3.5 °C28 December 2004	20.7 °C	149 mm	124	0
2003	45.4 °C30 June 2003	2.4 °C8 February 2003	21.1 °C	215 mm	132	0
2002	45.4 °C24 July 2002	2.6 °C7 January 2002	21.0 °C	119 mm	126	0
2001	46.7 °C19 July 2001	3.6 °C11 January 2001	21.5 °C	48 mm	132	0
2000	45.4 °C18 July 2000	3.5 °C6 January 2000	20.9 °C	45 mm	125	0
1999	45.1 °C8 August 1999	0.9 °C2 February 1999	21.2 °C	132 mm	146	0
1998	44.9 °C3 July 1998	3.6 °C10 December 1998	20.4 °C	171 mm	116	0
1997	46.7 °C24 July 1997	5.0 °C8 January 1997	20.5 °C	202 mm	97	0
1996	46.9 °C7 July 1996	1.1 °C28 December 1996	20.2 °C	122 mm	96	0
1995	44.9 °C26 June 1995	2.2 °C17 January 1995	20.0 °C	302 mm	99	0
1994	42.9 °C20 June 1994	3.6 °C3 February 1994	20.9 °C	118 mm	126	0
1993	45.4 °C4 July 1993	4.1 °C8 January 1993	20.1 °C	104 mm	111	0
1992	41.5 °C1 June 1992	3.0 °C4 January 1992	19.6 °C	165 mm	105	0
1991	45.8 °C31 July 1991	2.8 °C16 February 1991	19.4 °C	93 mm	95	0
1990	41.2 °C23 May 1990	3.2 °C16 December 1990	20.4 °C	223 mm	127	0
1989	43.1 °C7 August 1989	4.7 °C9 January 1989	20.3 °C	77 mm	106	0
1988	45.1 °C1 July 1988	3.1 °C27 December 1988	20.4 °C	110 mm	110	0
1987	45.4 °C13 June 1987	3.1 °C20 January 1987	20.3 °C	112 mm	117	0
1986	40.8 °C28 July 1986	2.6 °C13 February 1986	19.9 °C	160 mm	106	0
1985	43.3 °C15 June 1985	1.9 °C11 January 1985	20.1 °C	119 mm	104	0
1984	43.6 °C13 August 1984	2.5 °C14 February 1984	19.3 °C	210 mm	105	0
1983	43.6 °C29 August 1983	2.4 °C24 January 1983	19.8 °C	123 mm	108	0
1982	45.1 °C26 June 1982	2.4 °C25 December 1982	20.1 °C	191 mm	111	0
1981	45.5 °C3 July 1981	-0.1 °C9 January 1981	19.7 °C	69 mm	111	1
1980	45.0 °C9 July 1980	0.6 °C15 December 1980	18.8 °C	176 mm	84	0
1979	44.2 °C6 August 1979	2.9 °C17 January 1979	19.5 °C	206 mm	96	0
1978	43.4 °C7 August 1978	3.2 °C15 January 1978	19.3 °C	166 mm	78	0
1977	45.4 °C8 July 1977	3.9 °C21 December 1977	19.9 °C	167 mm	84	0
1976	42.1 °C16 August 1976	2.0 °C28 January 1976	18.5 °C	358 mm	77	0
1975	41.6 °C11 June 1975	3.2 °C11 January 1975	19.0 °C	290 mm	94	0
1974	42.0 °C2 September 1974	3.7 °C10 February 1974	19.1 °C	160 mm	97	0
1973	44.4 °C14 July 1973	3.3 °C2 March 1973	19.4 °C	192 mm	115	0
1972	43.8 °C2 August 1972	2.2 °C16 January 1972	18.8 °C	211 mm	79	0
1971	40.7 °C24 June 1971	1.1 °C3 March 1971	19.0 °C	149 mm	91	0
1970	42.6 °C9 August 1970	2.5 °C5 March 1970	19.6 °C	81 mm	93	0
1969	41.2 °C24 August 1969	1.7 °C12 December 1969	19.0 °C	249 mm	69	0
1968	45.1 °C11 August 1968	1.7 °C15 January 1968	19.5 °C	125 mm	80	0
1967	42.2 °C9 August 1967	1.0 °C23 December 1967	19.2 °C	87 mm	94	0
1966	44.2 °C27 August 1966	0.4 °C9 January 1966	19.6 °C	117 mm	94	0
1965	46.1 °C1 August 1965	0.7 °C11 February 1965	19.1 °C	122 mm	80	0
1964	44.3 °C18 August 1964	1.2 °C30 December 1964	19.2 °C	186 mm	105	0
1963	39.9 °C7 July 1963	2.1 °C25 February 1963	19.3 °C	105 mm	90	0
1962	44.8 °C12 July 1962	0.8 °C1 February 1962	19.2 °C	109 mm	92	0
1961	42.0 °C27 May 1961	2.0 °C7 January 1961	19.4 °C	87 mm	88	0
1960	47.6 °C2 July 1960	0.9 °C19 January 1960	19.6 °C	94 mm	85	0
1959	43.4 °C31 July 1959	1.9 °C20 January 1959	18.8 °C	120 mm	88	0
1958	41.9 °C26 June 1958	0.5 °C25 January 1958	19.2 °C	149 mm	90	0
1957	43.8 °C24 June 1957	-1.2 °C15 January 1957	18.7 °C	195 mm	75	2
1956	45.0 °C21 July 1956	-1.5 °C22 February 1956	18.3 °C	120 mm	92	3
1955	45.0 °C2 August 1955	2.8 °C29 November 1955	19.9 °C	84 mm	89	0
1954	44.9 °C30 June 1954	0.6 °C2 January 1954	18.4 °C	163 mm	81	0
1953	42.4 °C29 June 1953	-0.8 °C23 January 1953	18.7 °C	178 mm	101	2
1952	43.3 °C26 July 1952	1.2 °C22 January 1952	19.8 °C	90 mm	132	0
1951	42.1 °C8 August 1951	2.0 °C1 January 1951	18.9 °C	186 mm	94	0
1950	41.8 °C20 June 1950	1.3 °C21 January 1950	18.9 °C	143 mm	113	0
1949	39.9 °C18 July 1949	1.7 °C6 February 1949	18.6 °C	207 mm	104	0
1948	40.8 °C5 July 1948	1.5 °C20 December 1948	19.0 °C	137 mm	98	0
1947	42.6 °C31 August 1947	0.1 °C26 December 1947	20.1 °C	58 mm	125	0
1946	41.4 °C3 September 1946	-0.3 °C22 December 1946	19.6 °C	81 mm	123	1
1945	46.0 °C8 August 1945	0.2 °C3 January 1945	19.1 °C	110 mm	118	0
1944	43.4 °C22 July 1944	-2.3 °C11 January 1944	18.5 °C	78 mm	112	4
1943	43.4 °C26 July 1943	2.7 °C30 January 1943	19.0 °C	484 mm	110	0
1942	41.1 °C12 July 1942	-3.4 °C3 January 1942	18.9 °C	155 mm	113	9
1941	45.3 °C3 August 1941	-2.8 °C8 January 1941	18.7 °C	93 mm	102	6
1940	44.0 °C16 July 1940	-1.1 °C19 January 1940	18.6 °C	87 mm	107	6

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

26.7 °C

+1.7 °C

Hot days (≥ 30 °C)

140 d/yr

+31

Frost days (< 0 °C)

0 d/yr

Annual rainfall

118 mm

-25 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	17.6 °C	+2.2 °C	29 mm	+13 mm
Feb	18.3 °C	+0.9 °C	12 mm	-5 mm
Mar	24.0 °C	+3.7 °C	26 mm	+6 mm
Apr	25.1 °C	+1.4 °C	3 mm	-10 mm
May	28.7 °C	+1.1 °C	4 mm	-2 mm
Jun	33.4 °C	+2.0 °C	0 mm	-2 mm
Jul	36.9 °C	+2.6 °C	1 mm	+0 mm
Aug	35.0 °C	+0.6 °C	1 mm	-1 mm
Sep	32.3 °C	+1.2 °C	10 mm	-2 mm
Oct	28.1 °C	+1.6 °C	6 mm	-15 mm
Nov	22.2 °C	+1.1 °C	14 mm	-3 mm
Dec	17.7 °C	+1.2 °C	14 mm	-5 mm

The year's extremes

Hottest day

45.7 °C

25 Jul 2025

Coldest day

5.5 °C

16 Jan 2025

Wettest day

17.6 mm

25 Mar 2025

Windiest day

41.8 km/h

16 Apr 2025

Strongest gust

72.4 km/h

11 May 2025

Hottest feels-like

44.9 °C

14 Jul 2025

Coldest feels-like

1.2 °C

18 Jan 2025

Sunniest day

13.4 h

15 Jun 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 Mareth?

Mareth has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 19.9 °C and it receives 143 mm of precipitation per year.

What is the hottest day ever recorded in Mareth?

The hottest day measured in Mareth between 1940 and 2025 was 29 July 2023, reaching 48.0 °C.

What is the coldest day in Mareth?

The coldest day measured in Mareth between 1940 and 2025 was 3 January 1942, at -3.4 °C.

Does it snow in Mareth?

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

Has the climate of Mareth warmed?

Yes: Mareth warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Mareth?

The wettest day measured in Mareth between 1940 and 2025 was 25 November 1977, with 60 mm of rain in 24 hours.

What was the windiest day in Mareth?

The windiest day measured in Mareth between 1940 and 2025 was 12 December 1967, with winds reaching 67.4 km/h.

What is the warmest month in Mareth?

The warmest month in Mareth is August (28.7 °C on average); the coldest is January (11.2 °C).

How much does it rain in Mareth?

Mareth receives on average 143 mm of precipitation per year, spread over about 27 rainy days.

Is it sunny in Mareth?

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

What is the biggest single-day snowfall in Mareth?

The heaviest 24-hour snowfall measured in Mareth between 1940 and 2025 was 4 December 1973, with 0.6 cm.

Are there tropical nights in Mareth?

Yes: Mareth has on average 104 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Mareth?

In Mareth, between 1940 and 2025, the highest apparent temperature reached 48.5 °C on 24 July 1997, and the lowest was -7.8 °C on 4 January 1941.

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