Bosa climate — normals and trends

Q: What is the climate of Bosa?

Bosa has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 15.7 °C and it receives 744 mm of precipitation per year.

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

The hottest day measured in Bosa between 1940 and 2025 was 24 July 2023, reaching 36.4 °C.

Q: What is the coldest day in Bosa?

The coldest day measured in Bosa between 1940 and 2025 was 12 February 1956, at -4.1 °C.

Q: Does it snow in Bosa?

Yes. Bosa gets on average 1.4 cm of snow per year and has around 1 frost days.

Q: Has the climate of Bosa warmed?

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

Q: What is the wettest day in Bosa?

The wettest day measured in Bosa between 1940 and 2025 was 12 October 1991, with 69 mm of rain in 24 hours.

Q: What was the windiest day in Bosa?

The windiest day measured in Bosa between 1940 and 2025 was 20 January 1998, with winds reaching 56.3 km/h.

Q: What is the warmest month in Bosa?

The warmest month in Bosa is August (23.6 °C on average); the coldest is January (9.1 °C).

Q: How much does it rain in Bosa?

Bosa receives on average 744 mm of precipitation per year, spread over about 100 rainy days.

Q: Is it sunny in Bosa?

Bosa gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.

Bosa (Italy) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 15.7 °C and it receives 744 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 (23.6 °C on average) and the coldest is January (9.1 °C). Rainfall peaks in November.

Bosa averages 1 frost days, 13 hot days (≥ 30 °C) and 100 rainy days per year.

Bosa has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.

The number of frost days there went from about 2 to 0 per year over the period.

The hottest day of the period reached 36.4 °C (on 24 July 2023) and the coldest -4.1 °C (on 12 February 1956).

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

BosaSardinia

coords: 40.30°, 8.50°
period: 1940–2025 · 86 yrs

CsaHot-summer MediterraneanWarmest monthAugustColdest monthJanuaryWettest monthNovemberDriest monthJuly

Mean daily temperature

15.7°C

Average daily high

18.9°C

Average daily low

12.6°C

Annual rainfall

744mm

Sunshine / day

10.5h

Mean relative humidity

76%

Average peak wind

18.5km/h

Seasonal range

14.5°C

Frost days (< 0 °C)

1 d/yr

Hot days (≥ 30 °C)

13 d/yr

Rainy days (≥ 1 mm)

100 d/yr

Annual snowfall

1.4 cm

Average feels-like high

18.3 °C

Average feels-like low

11.2 °C

Average peak gust

34.9 km/h

Tropical nights (≥ 20 °C)

32 d/yr

Solar radiation

16.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.50 · 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

36.4 °C

24 July 2023

Coldest day

-4.1 °C

12 February 1956

Wettest day

69 mm

12 October 1991

Windiest day

56.3 km/h

20 January 1998

Strongest gust

106.9 km/h

20 January 1998

Hottest feels-like

39.4 °C

17 July 2023

Coldest feels-like

-8.4 °C

23 January 1963

Snowiest day

6.2 cm

2 February 1956

Sunniest day

14.9 h

20 June 1941

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	34.2 °C19 July 2025	4.6 °C15 January 2025	17.2 °C	662 mm	31	0
2024	34.8 °C12 August 2024	3.7 °C22 January 2024	17.1 °C	737 mm	40	0
2023	36.4 °C24 July 2023	0.4 °C22 January 2023	17.2 °C	667 mm	40	0
2022	34.8 °C17 August 2022	1.4 °C2 March 2022	17.4 °C	720 mm	51	0
2021	35.0 °C10 August 2021	2.3 °C15 February 2021	16.7 °C	840 mm	24	0
2020	34.3 °C31 July 2020	2.7 °C15 January 2020	16.7 °C	678 mm	19	0
2019	33.6 °C6 August 2019	1.7 °C4 January 2019	16.7 °C	882 mm	30	0
2018	32.0 °C13 July 2018	3.3 °C23 February 2018	16.7 °C	1,005 mm	10	0
2017	35.2 °C31 July 2017	1.7 °C7 January 2017	16.7 °C	406 mm	30	0
2016	34.1 °C22 July 2016	2.9 °C18 January 2016	16.6 °C	648 mm	8	0
2015	33.2 °C17 July 2015	2.5 °C11 February 2015	16.5 °C	593 mm	25	0
2014	33.1 °C23 June 2014	1.7 °C31 December 2014	16.6 °C	677 mm	8	0
2013	34.9 °C7 August 2013	0.8 °C9 February 2013	16.0 °C	935 mm	17	0
2012	33.6 °C6 August 2012	-0.8 °C11 February 2012	16.3 °C	694 mm	31	3
2011	33.1 °C13 July 2011	0.9 °C25 January 2011	16.3 °C	627 mm	17	0
2010	33.4 °C20 August 2010	0.9 °C12 February 2010	15.6 °C	954 mm	10	0
2009	35.2 °C23 July 2009	1.3 °C5 January 2009	16.3 °C	764 mm	22	0
2008	33.2 °C7 August 2008	1.6 °C18 February 2008	15.9 °C	904 mm	14	0
2007	34.5 °C25 August 2007	2.2 °C28 January 2007	16.2 °C	662 mm	10	0
2006	32.4 °C20 June 2006	0.1 °C12 January 2006	16.4 °C	622 mm	27	0
2005	32.1 °C29 June 2005	-0.4 °C2 March 2005	15.5 °C	661 mm	16	2
2004	33.1 °C7 July 2004	1.4 °C2 March 2004	16.0 °C	721 mm	15	0
2003	35.5 °C22 July 2003	1.1 °C7 February 2003	16.9 °C	648 mm	50	0
2002	31.6 °C3 August 2002	0.7 °C5 January 2002	15.9 °C	704 mm	3	0
2001	32.4 °C5 July 2001	-0.5 °C27 February 2001	16.4 °C	496 mm	14	1
2000	34.3 °C3 July 2000	1.6 °C1 January 2000	16.3 °C	706 mm	17	0
1999	35.1 °C19 August 1999	0.3 °C31 January 1999	16.2 °C	652 mm	16	0
1998	33.5 °C1 July 1998	1.9 °C24 December 1998	15.6 °C	622 mm	23	0
1997	33.1 °C8 August 1997	3.8 °C17 February 1997	16.5 °C	637 mm	10	0
1996	33.7 °C26 July 1996	-0.3 °C28 December 1996	15.4 °C	990 mm	6	1
1995	33.1 °C11 August 1995	0.8 °C6 January 1995	15.7 °C	493 mm	10	0
1994	34.4 °C10 August 1994	2.2 °C30 January 1994	16.4 °C	459 mm	26	0
1993	35.4 °C4 July 1993	-0.1 °C25 February 1993	15.6 °C	567 mm	15	1
1992	32.4 °C9 August 1992	1.8 °C3 January 1992	15.5 °C	693 mm	5	0
1991	31.1 °C23 July 1991	0.9 °C30 January 1991	14.9 °C	763 mm	7	0
1990	30.2 °C28 July 1990	1.6 °C20 December 1990	15.8 °C	682 mm	2	0
1989	32.2 °C24 July 1989	1.7 °C2 February 1989	15.7 °C	609 mm	10	0
1988	34.7 °C3 August 1988	0.9 °C27 February 1988	16.0 °C	482 mm	16	0
1987	31.7 °C15 July 1987	-0.6 °C9 January 1987	15.9 °C	603 mm	8	1
1986	33.2 °C18 August 1986	-1.1 °C11 February 1986	15.7 °C	819 mm	7	2
1985	31.0 °C25 August 1985	-1.6 °C12 January 1985	15.4 °C	646 mm	6	4
1984	31.6 °C11 July 1984	0.2 °C18 February 1984	14.7 °C	970 mm	7	0
1983	36.3 °C26 July 1983	1.2 °C12 February 1983	15.7 °C	606 mm	17	0
1982	32.8 °C17 July 1982	2.0 °C15 March 1982	16.2 °C	585 mm	17	0
1981	31.2 °C3 August 1981	-0.5 °C10 January 1981	15.2 °C	672 mm	6	1
1980	32.9 °C3 August 1980	1.2 °C11 December 1980	14.5 °C	856 mm	2	0
1979	33.0 °C31 July 1979	1.0 °C17 January 1979	15.4 °C	845 mm	7	0
1978	31.5 °C6 August 1978	2.7 °C7 January 1978	14.9 °C	1,070 mm	5	0
1977	31.2 °C17 August 1977	2.3 °C18 January 1977	15.5 °C	833 mm	1	0
1976	29.2 °C9 August 1976	2.8 °C19 January 1976	14.8 °C	1,098 mm	0	0
1975	30.9 °C17 September 1975	1.9 °C28 February 1975	15.0 °C	904 mm	3	0
1974	30.8 °C4 August 1974	2.8 °C23 December 1974	14.8 °C	821 mm	3	0
1973	29.5 °C28 June 1973	2.5 °C28 February 1973	15.3 °C	734 mm	0	0
1972	31.0 °C9 July 1972	3.0 °C1 February 1972	14.9 °C	1,088 mm	3	0
1971	33.6 °C17 July 1971	0.2 °C9 March 1971	15.3 °C	963 mm	14	0
1970	32.4 °C11 September 1970	2.3 °C26 December 1970	15.6 °C	693 mm	9	0
1969	32.4 °C15 August 1969	1.7 °C6 February 1969	15.2 °C	1,057 mm	3	0
1968	33.2 °C8 July 1968	0.3 °C14 January 1968	15.5 °C	873 mm	4	0
1967	33.2 °C3 August 1967	-0.6 °C7 January 1967	15.8 °C	697 mm	10	1
1966	32.2 °C4 August 1966	2.6 °C14 January 1966	15.5 °C	1,059 mm	2	0
1965	34.7 °C25 July 1965	-0.3 °C18 February 1965	15.5 °C	1,006 mm	8	1
1964	31.3 °C19 July 1964	1.6 °C9 February 1964	15.7 °C	773 mm	5	0
1963	32.9 °C14 August 1963	-1.4 °C23 January 1963	15.1 °C	1,068 mm	9	4
1962	31.1 °C26 July 1962	0.8 °C30 January 1962	15.2 °C	835 mm	4	0
1961	31.9 °C12 August 1961	2.3 °C18 December 1961	16.0 °C	776 mm	4	0
1960	31.9 °C28 August 1960	1.1 °C13 January 1960	15.5 °C	1,011 mm	4	0
1959	33.2 °C29 July 1959	2.3 °C18 January 1959	15.5 °C	834 mm	3	0
1958	32.4 °C29 August 1958	0.9 °C28 February 1958	15.5 °C	759 mm	4	0
1957	34.1 °C13 August 1957	1.9 °C3 December 1957	15.1 °C	718 mm	8	0
1956	33.5 °C27 August 1956	-4.1 °C12 February 1956	14.4 °C	763 mm	12	7
1955	30.4 °C3 July 1955	3.0 °C10 March 1955	15.8 °C	612 mm	1	0
1954	32.1 °C14 August 1954	1.7 °C25 January 1954	14.9 °C	675 mm	4	0
1953	32.0 °C18 July 1953	1.3 °C22 January 1953	15.2 °C	750 mm	3	0
1952	31.3 °C29 June 1952	2.0 °C21 January 1952	15.9 °C	627 mm	11	0
1951	33.8 °C7 August 1951	2.7 °C3 March 1951	15.2 °C	915 mm	6	0
1950	34.4 °C2 August 1950	2.2 °C31 January 1950	15.6 °C	696 mm	23	0
1949	32.7 °C12 September 1949	-0.1 °C5 March 1949	15.6 °C	577 mm	12	1
1948	30.0 °C21 July 1948	1.1 °C20 February 1948	15.2 °C	674 mm	1	0
1947	33.4 °C5 August 1947	0.0 °C5 January 1947	16.2 °C	685 mm	29	0
1946	33.1 °C6 September 1946	0.7 °C16 January 1946	15.8 °C	879 mm	22	0
1945	34.7 °C28 July 1945	-2.2 °C12 January 1945	15.8 °C	474 mm	28	3
1944	34.9 °C22 August 1944	-1.2 °C14 February 1944	14.9 °C	570 mm	19	1
1943	33.3 °C13 September 1943	3.0 °C10 January 1943	15.8 °C	624 mm	22	0
1942	32.3 °C3 August 1942	-1.1 °C24 January 1942	15.1 °C	484 mm	11	5
1941	33.0 °C19 August 1941	-0.6 °C30 December 1941	14.4 °C	718 mm	11	2
1940	34.0 °C27 July 1940	-2.3 °C27 December 1940	14.4 °C	691 mm	10	9

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

20.6 °C

+1.7 °C

Hot days (≥ 30 °C)

31 d/yr

+18

Frost days (< 0 °C)

0 d/yr

-1

Annual rainfall

662 mm

-82 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	13.5 °C	+1.7 °C	59 mm	-25 mm
Feb	14.3 °C	+2.1 °C	41 mm	-43 mm
Mar	15.7 °C	+1.8 °C	110 mm	+36 mm
Apr	17.5 °C	+1.2 °C	116 mm	+46 mm
May	21.2 °C	+1.2 °C	32 mm	-18 mm
Jun	28.8 °C	+4.8 °C	0 mm	-19 mm
Jul	28.5 °C	+1.4 °C	4 mm	-1 mm
Aug	28.6 °C	+1.1 °C	10 mm	-2 mm
Sep	25.9 °C	+1.3 °C	62 mm	+20 mm
Oct	21.6 °C	+0.8 °C	54 mm	-27 mm
Nov	16.7 °C	+0.6 °C	93 mm	-24 mm
Dec	14.4 °C	+1.4 °C	80 mm	-23 mm

The year's extremes

Hottest day

34.2 °C

19 Jul 2025

Coldest day

4.6 °C

15 Jan 2025

Wettest day

53.5 mm

10 Sep 2025

Windiest day

37.9 km/h

28 Jul 2025

Strongest gust

68.8 km/h

23 Oct 2025

Hottest feels-like

36.6 °C

2 Jul 2025

Coldest feels-like

0.9 °C

15 Jan 2025

Sunniest day

14.9 h

20 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 Bosa?

Bosa has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 15.7 °C and it receives 744 mm of precipitation per year.

What is the hottest day ever recorded in Bosa?

The hottest day measured in Bosa between 1940 and 2025 was 24 July 2023, reaching 36.4 °C.

What is the coldest day in Bosa?

The coldest day measured in Bosa between 1940 and 2025 was 12 February 1956, at -4.1 °C.

Does it snow in Bosa?

Yes. Bosa gets on average 1.4 cm of snow per year and has around 1 frost days.

Has the climate of Bosa warmed?

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

What is the wettest day in Bosa?

The wettest day measured in Bosa between 1940 and 2025 was 12 October 1991, with 69 mm of rain in 24 hours.

What was the windiest day in Bosa?

The windiest day measured in Bosa between 1940 and 2025 was 20 January 1998, with winds reaching 56.3 km/h.

What is the warmest month in Bosa?

The warmest month in Bosa is August (23.6 °C on average); the coldest is January (9.1 °C).

How much does it rain in Bosa?

Bosa receives on average 744 mm of precipitation per year, spread over about 100 rainy days.

Is it sunny in Bosa?

Bosa gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.

What is the biggest single-day snowfall in Bosa?

The heaviest 24-hour snowfall measured in Bosa between 1940 and 2025 was 2 February 1956, with 6.2 cm.

Are there tropical nights in Bosa?

Yes: Bosa has on average 32 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Bosa?

In Bosa, between 1940 and 2025, the highest apparent temperature reached 39.4 °C on 17 July 2023, and the lowest was -8.4 °C on 23 January 1963.

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