Chianciano Terme climate — normals and trends

Q: What is the climate of Chianciano Terme?

Chianciano Terme has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 13.2 °C and it receives 851 mm of precipitation per year.

Q: What is the hottest day ever recorded in Chianciano Terme?

The hottest day measured in Chianciano Terme between 1940 and 2025 was 3 August 2017, reaching 37.9 °C.

Q: What is the coldest day in Chianciano Terme?

The coldest day measured in Chianciano Terme between 1940 and 2025 was 24 January 1942, at -18.8 °C.

Q: Does it snow in Chianciano Terme?

Yes. Chianciano Terme gets on average 16.3 cm of snow per year and has around 29 frost days.

Q: Has the climate of Chianciano Terme warmed?

Yes: Chianciano Terme warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Chianciano Terme?

The wettest day measured in Chianciano Terme between 1940 and 2025 was 4 November 1966, with 89 mm of rain in 24 hours.

Q: What was the windiest day in Chianciano Terme?

The windiest day measured in Chianciano Terme between 1940 and 2025 was 29 October 2018, with winds reaching 41.5 km/h.

Q: What is the warmest month in Chianciano Terme?

The warmest month in Chianciano Terme is July (23.1 °C on average); the coldest is January (4.3 °C).

Q: How much does it rain in Chianciano Terme?

Chianciano Terme receives on average 851 mm of precipitation per year, spread over about 116 rainy days.

Q: Is it sunny in Chianciano Terme?

Chianciano Terme gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

Chianciano Terme (Italy) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 13.2 °C and it receives 851 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 July (23.1 °C on average) and the coldest is January (4.3 °C). Rainfall peaks in November.

Chianciano Terme averages 29 frost days, 27 hot days (≥ 30 °C) and 116 rainy days per year.

Chianciano Terme has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.

The number of frost days there went from about 42 to 16 per year over the period.

The hottest day of the period reached 37.9 °C (on 3 August 2017) and the coldest -18.8 °C (on 24 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

Chianciano TermeTuscany

coords: 43.04°, 11.81°
period: 1940–2025 · 86 yrs

CsaHot-summer MediterraneanWarmest monthJulyColdest monthJanuaryWettest monthNovemberDriest monthJuly

Mean daily temperature

13.2°C

Average daily high

17.8°C

Average daily low

9.2°C

Annual rainfall

851mm

Sunshine / day

9.6h

Mean relative humidity

74%

Average peak wind

13.3km/h

Seasonal range

18.8°C

Frost days (< 0 °C)

29 d/yr

Hot days (≥ 30 °C)

27 d/yr

Rainy days (≥ 1 mm)

116 d/yr

Annual snowfall

16.3 cm

Average feels-like high

16.6 °C

Average feels-like low

7.8 °C

Average peak gust

33.6 km/h

Tropical nights (≥ 20 °C)

11 d/yr

Solar radiation

14.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °C

since 1940

+0.2 °C per decade · r² = 0.49 · 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

37.9 °C

3 August 2017

Coldest day

-18.8 °C

24 January 1942

Wettest day

89 mm

4 November 1966

Windiest day

41.5 km/h

29 October 2018

Strongest gust

112.3 km/h

29 October 2018

Hottest feels-like

39.8 °C

1 August 2017

Coldest feels-like

-22.9 °C

24 January 1942

Snowiest day

19.7 cm

1 February 2012

Sunniest day

14.8 h

30 June 2019

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.7 °C12 August 2025	-2.3 °C15 January 2025	14.9 °C	804 mm	54	5
2024	37.4 °C11 August 2024	-2.0 °C23 November 2024	15.2 °C	956 mm	61	6
2023	36.0 °C24 August 2023	-2.4 °C11 February 2023	15.1 °C	892 mm	45	11
2022	36.6 °C4 July 2022	-2.2 °C9 March 2022	15.1 °C	779 mm	59	16
2021	36.2 °C12 August 2021	-4.9 °C15 February 2021	14.2 °C	715 mm	42	25
2020	36.3 °C1 August 2020	-1.4 °C13 January 2020	14.4 °C	809 mm	42	6
2019	35.5 °C27 June 2019	-4.6 °C31 January 2019	14.5 °C	976 mm	50	19
2018	33.7 °C31 July 2018	-12.6 °C28 February 2018	14.4 °C	1,065 mm	25	15
2017	37.9 °C3 August 2017	-5.0 °C8 January 2017	14.4 °C	574 mm	57	24
2016	32.0 °C4 August 2016	-2.7 °C19 January 2016	14.2 °C	1,039 mm	29	10
2015	35.0 °C22 July 2015	-2.0 °C1 January 2015	14.4 °C	703 mm	45	12
2014	31.0 °C19 July 2014	-2.0 °C27 December 2014	14.3 °C	1,148 mm	7	7
2013	35.1 °C6 August 2013	-3.2 °C28 November 2013	13.7 °C	950 mm	26	28
2012	36.0 °C1 July 2012	-5.4 °C5 February 2012	14.3 °C	782 mm	66	38
2011	35.0 °C21 August 2011	-3.5 °C20 December 2011	14.1 °C	647 mm	27	18
2010	35.5 °C16 July 2010	-4.9 °C17 December 2010	13.3 °C	1,219 mm	27	34
2009	34.7 °C19 August 2009	-4.4 °C20 December 2009	14.0 °C	883 mm	40	22
2008	33.4 °C6 August 2008	-4.6 °C18 February 2008	13.8 °C	967 mm	44	20
2007	34.5 °C18 July 2007	-2.7 °C30 December 2007	13.9 °C	596 mm	28	14
2006	34.8 °C21 July 2006	-4.9 °C26 January 2006	13.7 °C	605 mm	38	32
2005	36.5 °C29 July 2005	-8.3 °C2 March 2005	12.7 °C	933 mm	25	61
2004	34.0 °C23 July 2004	-9.4 °C31 January 2004	13.5 °C	967 mm	27	28
2003	36.5 °C13 August 2003	-3.6 °C3 February 2003	14.3 °C	619 mm	71	35
2002	33.6 °C23 June 2002	-5.3 °C2 January 2002	13.8 °C	889 mm	17	20
2001	34.7 °C2 August 2001	-8.4 °C27 February 2001	13.7 °C	657 mm	29	22
2000	34.5 °C26 August 2000	-5.9 °C27 January 2000	14.0 °C	896 mm	22	15
1999	33.8 °C10 August 1999	-4.8 °C16 February 1999	13.8 °C	832 mm	20	31
1998	34.9 °C11 August 1998	-3.7 °C26 December 1998	13.6 °C	779 mm	42	20
1997	31.7 °C23 July 1997	-1.2 °C3 February 1997	13.8 °C	786 mm	14	8
1996	30.8 °C12 June 1996	-13.5 °C30 December 1996	12.8 °C	1,019 mm	9	26
1995	33.9 °C23 July 1995	-5.0 °C7 January 1995	12.9 °C	762 mm	10	21
1994	34.3 °C5 August 1994	-3.4 °C15 February 1994	14.0 °C	557 mm	40	19
1993	35.0 °C4 August 1993	-7.2 °C24 February 1993	13.1 °C	649 mm	34	48
1992	33.2 °C8 August 1992	-3.9 °C20 February 1992	13.2 °C	856 mm	24	29
1991	32.1 °C21 July 1991	-11.6 °C7 February 1991	12.5 °C	803 mm	26	47
1990	32.5 °C22 July 1990	-3.1 °C6 January 1990	13.3 °C	728 mm	15	28
1989	31.6 °C16 August 1989	-3.4 °C4 January 1989	12.9 °C	706 mm	13	34
1988	34.0 °C23 July 1988	-3.7 °C11 January 1988	13.3 °C	643 mm	32	29
1987	33.1 °C23 July 1987	-8.3 °C9 January 1987	13.0 °C	858 mm	24	36
1986	31.6 °C3 August 1986	-6.3 °C11 February 1986	12.8 °C	865 mm	16	37
1985	33.7 °C16 August 1985	-15.0 °C11 January 1985	13.0 °C	642 mm	32	34
1984	33.1 °C4 August 1984	-4.0 °C21 February 1984	12.2 °C	1,009 mm	9	27
1983	35.8 °C27 July 1983	-4.1 °C24 February 1983	12.8 °C	755 mm	18	45
1982	33.0 °C16 July 1982	-4.9 °C23 February 1982	13.2 °C	819 mm	18	28
1981	34.5 °C3 August 1981	-9.1 °C15 January 1981	12.5 °C	768 mm	8	53
1980	34.2 °C3 August 1980	-9.1 °C5 December 1980	12.0 °C	990 mm	12	28
1979	31.9 °C5 August 1979	-9.2 °C3 January 1979	12.9 °C	1,048 mm	9	24
1978	31.9 °C7 August 1978	-3.2 °C9 January 1978	12.3 °C	1,011 mm	8	27
1977	30.9 °C13 July 1977	-3.7 °C19 December 1977	13.0 °C	889 mm	2	15
1976	30.9 °C17 July 1976	-5.5 °C29 January 1976	12.5 °C	1,076 mm	2	21
1975	32.0 °C17 July 1975	-3.5 °C5 January 1975	13.0 °C	874 mm	11	18
1974	35.3 °C16 August 1974	-2.9 °C13 December 1974	12.8 °C	822 mm	22	12
1973	33.2 °C12 August 1973	-6.2 °C1 December 1973	12.9 °C	798 mm	22	33
1972	34.2 °C12 August 1972	-2.9 °C28 November 1972	12.6 °C	1,169 mm	9	11
1971	35.4 °C8 August 1971	-8.4 °C7 March 1971	12.8 °C	790 mm	40	34
1970	35.1 °C23 July 1970	-10.1 °C26 December 1970	13.1 °C	754 mm	27	27
1969	32.5 °C21 July 1969	-8.3 °C12 February 1969	12.6 °C	1,042 mm	11	36
1968	35.3 °C10 July 1968	-8.8 °C14 January 1968	12.7 °C	1,054 mm	7	32
1967	34.7 °C25 July 1967	-10.5 °C10 January 1967	13.2 °C	802 mm	28	35
1966	34.3 °C15 August 1966	-9.9 °C20 January 1966	12.8 °C	1,123 mm	7	37
1965	34.4 °C6 August 1965	-7.4 °C18 February 1965	12.7 °C	1,092 mm	22	36
1964	32.5 °C20 July 1964	-5.0 °C18 January 1964	12.9 °C	951 mm	11	43
1963	31.2 °C3 August 1963	-15.0 °C31 January 1963	12.3 °C	1,044 mm	6	54
1962	35.4 °C28 July 1962	-6.2 °C18 March 1962	13.1 °C	922 mm	58	49
1961	34.9 °C10 August 1961	-5.2 °C17 December 1961	14.0 °C	824 mm	24	20
1960	36.5 °C28 August 1960	-8.6 °C14 January 1960	13.3 °C	1,125 mm	12	17
1959	33.5 °C28 July 1959	-5.3 °C6 January 1959	13.5 °C	829 mm	24	15
1958	37.1 °C1 August 1958	-7.3 °C20 February 1958	13.4 °C	892 mm	27	32
1957	35.4 °C13 August 1957	-8.3 °C21 January 1957	13.0 °C	916 mm	18	30
1956	37.0 °C10 August 1956	-16.4 °C15 February 1956	12.4 °C	698 mm	30	48
1955	32.7 °C20 July 1955	-3.5 °C15 February 1955	13.6 °C	812 mm	14	14
1954	32.0 °C29 July 1954	-8.0 °C31 January 1954	12.7 °C	692 mm	16	40
1953	33.8 °C28 July 1953	-3.5 °C9 February 1953	13.3 °C	933 mm	23	35
1952	36.0 °C6 July 1952	-3.1 °C4 February 1952	13.7 °C	784 mm	47	26
1951	32.9 °C3 August 1951	-1.3 °C5 March 1951	13.1 °C	947 mm	9	10
1950	37.0 °C5 July 1950	-6.5 °C21 December 1950	13.7 °C	665 mm	49	26
1949	34.4 °C9 August 1949	-4.1 °C3 February 1949	13.0 °C	771 mm	31	32
1948	30.7 °C23 July 1948	-4.0 °C20 February 1948	12.5 °C	818 mm	5	38
1947	35.9 °C2 August 1947	-9.7 °C1 February 1947	13.2 °C	954 mm	24	49
1946	34.7 °C14 August 1946	-3.1 °C17 January 1946	13.0 °C	884 mm	40	37
1945	36.4 °C30 July 1945	-8.8 °C11 January 1945	13.2 °C	433 mm	42	55
1944	33.9 °C23 August 1944	-5.8 °C4 January 1944	12.0 °C	984 mm	18	55
1943	34.9 °C20 August 1943	-8.5 °C5 January 1943	13.3 °C	845 mm	35	28
1942	32.0 °C30 July 1942	-18.8 °C24 January 1942	12.1 °C	736 mm	27	53
1941	34.8 °C26 July 1941	-9.1 °C18 January 1941	11.8 °C	763 mm	31	52
1940	33.4 °C10 August 1940	-14.6 °C20 January 1940	11.0 °C	733 mm	13	92

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

19.8 °C

+2.0 °C

Hot days (≥ 30 °C)

54 d/yr

+27

Frost days (< 0 °C)

5 d/yr

-24

Annual rainfall

804 mm

-47 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	10.7 °C	+2.9 °C	33 mm	-28 mm
Feb	11.8 °C	+2.4 °C	89 mm	+22 mm
Mar	14.3 °C	+1.6 °C	123 mm	+50 mm
Apr	18.4 °C	+2.2 °C	82 mm	+1 mm
May	21.6 °C	+0.9 °C	92 mm	+15 mm
Jun	30.9 °C	+5.8 °C	7 mm	-48 mm
Jul	30.2 °C	+1.5 °C	43 mm	+10 mm
Aug	30.4 °C	+1.8 °C	74 mm	+27 mm
Sep	25.4 °C	+1.3 °C	92 mm	+14 mm
Oct	19.5 °C	+0.9 °C	50 mm	-46 mm
Nov	13.8 °C	+1.0 °C	79 mm	-24 mm
Dec	10.3 °C	+1.5 °C	41 mm	-39 mm

The year's extremes

Hottest day

36.7 °C

12 Aug 2025

Coldest day

-2.3 °C

15 Jan 2025

Wettest day

36.1 mm

10 Sep 2025

Windiest day

32.9 km/h

23 Oct 2025

Strongest gust

74.5 km/h

14 Mar 2025

Hottest feels-like

39.7 °C

13 Aug 2025

Coldest feels-like

-5.9 °C

15 Jan 2025

Snowiest day

2.4 cm

22 Nov 2025

Sunniest day

14.8 h

29 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 Chianciano Terme?

Chianciano Terme has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 13.2 °C and it receives 851 mm of precipitation per year.

What is the hottest day ever recorded in Chianciano Terme?

The hottest day measured in Chianciano Terme between 1940 and 2025 was 3 August 2017, reaching 37.9 °C.

What is the coldest day in Chianciano Terme?

The coldest day measured in Chianciano Terme between 1940 and 2025 was 24 January 1942, at -18.8 °C.

Does it snow in Chianciano Terme?

Yes. Chianciano Terme gets on average 16.3 cm of snow per year and has around 29 frost days.

Has the climate of Chianciano Terme warmed?

Yes: Chianciano Terme warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Chianciano Terme?

The wettest day measured in Chianciano Terme between 1940 and 2025 was 4 November 1966, with 89 mm of rain in 24 hours.

What was the windiest day in Chianciano Terme?

The windiest day measured in Chianciano Terme between 1940 and 2025 was 29 October 2018, with winds reaching 41.5 km/h.

What is the warmest month in Chianciano Terme?

The warmest month in Chianciano Terme is July (23.1 °C on average); the coldest is January (4.3 °C).

How much does it rain in Chianciano Terme?

Chianciano Terme receives on average 851 mm of precipitation per year, spread over about 116 rainy days.

Is it sunny in Chianciano Terme?

Chianciano Terme gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

What is the biggest single-day snowfall in Chianciano Terme?

The heaviest 24-hour snowfall measured in Chianciano Terme between 1940 and 2025 was 1 February 2012, with 19.7 cm.

Are there tropical nights in Chianciano Terme?

Yes: Chianciano Terme has on average 11 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Chianciano Terme?

In Chianciano Terme, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 1 August 2017, and the lowest was -22.9 °C on 24 January 1942.

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