Aradas climate — normals and trends

Q: What is the climate of Aradas?

Aradas has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 15.3 °C and it receives 995 mm of precipitation per year.

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

The hottest day measured in Aradas between 1940 and 2025 was 13 July 2022, reaching 36.0 °C.

Q: What is the coldest day in Aradas?

The coldest day measured in Aradas between 1940 and 2025 was 11 January 1941, at -1.8 °C.

Q: Does it snow in Aradas?

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

Q: Has the climate of Aradas warmed?

Yes: Aradas warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Aradas?

The wettest day measured in Aradas between 1940 and 2025 was 5 October 1981, with 83 mm of rain in 24 hours.

Q: What was the windiest day in Aradas?

The windiest day measured in Aradas between 1940 and 2025 was 15 February 1941, with winds reaching 70.6 km/h.

Q: What is the warmest month in Aradas?

The warmest month in Aradas is August (20.3 °C on average); the coldest is January (10.4 °C).

Q: How much does it rain in Aradas?

Aradas receives on average 995 mm of precipitation per year, spread over about 108 rainy days.

Q: Is it sunny in Aradas?

Aradas gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.

Aradas (Portugal) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 15.3 °C and it receives 995 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 (20.3 °C on average) and the coldest is January (10.4 °C). Rainfall peaks in December.

Aradas averages 0 frost days, 4 hot days (≥ 30 °C) and 108 rainy days per year.

Aradas has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.0 °C (on 13 July 2022) and the coldest -1.8 °C (on 11 January 1941).

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

AradasAveiro District

coords: 40.62°, -8.64°
period: 1940–2025 · 86 yrs

CsbWarm-summer MediterraneanWarmest monthAugustColdest monthJanuaryWettest monthDecemberDriest monthJuly

Mean daily temperature

15.3°C

Average daily high

18.6°C

Average daily low

12.4°C

Annual rainfall

995mm

Sunshine / day

10.3h

Mean relative humidity

78%

Average peak wind

22.0km/h

Seasonal range

9.9°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

4 d/yr

Rainy days (≥ 1 mm)

108 d/yr

Annual snowfall

0.0 cm

Average feels-like high

17.6 °C

Average feels-like low

10.6 °C

Average peak gust

37.8 km/h

Tropical nights (≥ 20 °C)

4 d/yr

Solar radiation

16.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.31 · 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

36.0 °C

13 July 2022

Coldest day

-1.8 °C

11 January 1941

Wettest day

83 mm

5 October 1981

Windiest day

70.6 km/h

15 February 1941

Strongest gust

130.0 km/h

15 February 1941

Hottest feels-like

38.3 °C

14 June 1981

Coldest feels-like

-7.3 °C

1 March 2005

Snowiest day

1.3 cm

23 February 1956

Sunniest day

14.9 h

12 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	31.1 °C3 August 2025	3.6 °C15 January 2025	16.2 °C	1,421 mm	4	0
2024	30.9 °C23 July 2024	5.1 °C7 January 2024	16.3 °C	969 mm	4	0
2023	32.6 °C7 August 2023	3.3 °C2 March 2023	16.5 °C	906 mm	6	0
2022	36.0 °C13 July 2022	4.7 °C31 January 2022	16.3 °C	1,000 mm	6	0
2021	31.0 °C16 July 2021	1.8 °C6 January 2021	15.6 °C	854 mm	1	0
2020	32.8 °C17 July 2020	2.7 °C27 December 2020	16.1 °C	773 mm	5	0
2019	29.9 °C30 May 2019	3.7 °C4 February 2019	15.5 °C	932 mm	0	0
2018	32.9 °C4 August 2018	2.7 °C8 February 2018	15.4 °C	1,026 mm	7	0
2017	32.9 °C3 July 2017	1.8 °C19 January 2017	15.9 °C	634 mm	4	0
2016	33.8 °C7 August 2016	4.8 °C16 February 2016	15.7 °C	1,132 mm	8	0
2015	32.1 °C20 June 2015	2.6 °C7 February 2015	15.9 °C	626 mm	3	0
2014	30.1 °C30 July 2014	4.1 °C31 December 2014	15.9 °C	1,309 mm	1	0
2013	34.1 °C5 July 2013	4.0 °C25 February 2013	15.5 °C	1,067 mm	9	0
2012	33.0 °C17 July 2012	1.3 °C3 February 2012	15.2 °C	692 mm	4	0
2011	30.8 °C26 June 2011	3.0 °C23 January 2011	16.0 °C	957 mm	4	0
2010	34.1 °C27 July 2010	1.9 °C17 December 2010	15.6 °C	1,091 mm	9	0
2009	30.9 °C21 June 2009	1.2 °C9 January 2009	15.7 °C	1,095 mm	5	0
2008	29.2 °C15 July 2008	3.9 °C26 December 2008	15.2 °C	744 mm	0	0
2007	31.7 °C30 July 2007	2.9 °C17 December 2007	15.3 °C	565 mm	4	0
2006	32.4 °C16 July 2006	1.9 °C28 January 2006	16.0 °C	1,104 mm	14	0
2005	34.8 °C5 August 2005	-0.4 °C1 March 2005	15.5 °C	669 mm	12	1
2004	30.7 °C23 September 2004	3.6 °C2 March 2004	15.5 °C	627 mm	1	0
2003	33.9 °C19 June 2003	1.9 °C10 January 2003	15.8 °C	1,120 mm	14	0
2002	29.8 °C17 July 2002	4.5 °C8 January 2002	15.5 °C	1,132 mm	0	0
2001	31.2 °C19 June 2001	1.2 °C25 December 2001	15.5 °C	1,136 mm	4	0
2000	31.3 °C17 June 2000	3.6 °C25 January 2000	15.4 °C	1,274 mm	5	0
1999	33.7 °C8 July 1999	2.8 °C12 January 1999	15.3 °C	871 mm	2	0
1998	32.3 °C6 August 1998	3.5 °C5 December 1998	15.6 °C	789 mm	4	0
1997	31.3 °C26 July 1997	3.0 °C6 January 1997	16.5 °C	1,250 mm	3	0
1996	30.7 °C12 July 1996	2.4 °C22 February 1996	15.3 °C	1,254 mm	4	0
1995	33.2 °C24 July 1995	4.1 °C15 December 1995	16.5 °C	970 mm	9	0
1994	31.5 °C22 June 1994	2.3 °C5 February 1994	15.3 °C	928 mm	1	0
1993	33.1 °C23 July 1993	1.9 °C1 March 1993	14.9 °C	975 mm	6	0
1992	30.3 °C30 July 1992	2.6 °C24 January 1992	15.1 °C	640 mm	1	0
1991	32.3 °C19 July 1991	3.3 °C15 January 1991	15.3 °C	767 mm	9	0
1990	32.8 °C18 July 1990	2.7 °C23 December 1990	16.0 °C	696 mm	8	0
1989	32.7 °C28 July 1989	4.5 °C2 January 1989	16.3 °C	997 mm	9	0
1988	33.6 °C6 September 1988	3.8 °C16 December 1988	15.3 °C	832 mm	3	0
1987	33.5 °C2 August 1987	1.4 °C14 January 1987	15.9 °C	1,040 mm	8	0
1986	30.8 °C18 July 1986	3.7 °C9 February 1986	14.8 °C	831 mm	4	0
1985	31.2 °C10 September 1985	0.5 °C15 January 1985	15.3 °C	1,116 mm	2	0
1984	32.0 °C31 August 1984	3.4 °C28 January 1984	14.9 °C	1,040 mm	1	0
1983	31.9 °C6 September 1983	0.9 °C14 February 1983	15.2 °C	961 mm	4	0
1982	31.7 °C10 August 1982	4.4 °C31 December 1982	15.2 °C	737 mm	4	0
1981	33.9 °C14 June 1981	3.9 °C11 January 1981	15.4 °C	983 mm	10	0
1980	31.5 °C20 August 1980	2.0 °C15 January 1980	14.9 °C	765 mm	1	0
1979	30.6 °C16 July 1979	3.2 °C17 February 1979	14.9 °C	1,341 mm	4	0
1978	32.9 °C12 September 1978	2.2 °C11 February 1978	15.5 °C	1,416 mm	4	0
1977	30.2 °C13 September 1977	4.2 °C10 January 1977	14.9 °C	1,333 mm	2	0
1976	32.3 °C23 July 1976	2.4 °C27 January 1976	14.8 °C	961 mm	4	0
1975	29.7 °C30 July 1975	3.2 °C31 December 1975	14.7 °C	791 mm	0	0
1974	29.6 °C10 July 1974	4.5 °C5 March 1974	14.5 °C	944 mm	0	0
1973	29.6 °C24 June 1973	2.8 °C17 February 1973	14.8 °C	1,020 mm	0	0
1972	32.4 °C13 July 1972	2.7 °C3 January 1972	14.2 °C	1,233 mm	2	0
1971	29.9 °C7 July 1971	1.1 °C2 January 1971	14.6 °C	948 mm	0	0
1970	31.9 °C21 September 1970	1.0 °C31 December 1970	14.8 °C	982 mm	6	0
1969	32.2 °C13 July 1969	3.4 °C14 December 1969	14.8 °C	1,297 mm	6	0
1968	32.3 °C30 June 1968	3.7 °C31 December 1968	15.1 °C	1,129 mm	5	0
1967	29.3 °C29 June 1967	2.0 °C12 January 1967	14.8 °C	715 mm	0	0
1966	31.8 °C7 September 1966	3.3 °C25 December 1966	15.2 °C	1,547 mm	5	0
1965	29.8 °C27 August 1965	1.9 °C19 February 1965	14.8 °C	1,285 mm	0	0
1964	32.3 °C3 August 1964	2.3 °C28 January 1964	14.9 °C	957 mm	6	0
1963	32.3 °C20 July 1963	0.6 °C23 December 1963	14.8 °C	1,457 mm	4	0
1962	31.0 °C28 August 1962	-1.0 °C26 December 1962	15.1 °C	832 mm	3	1
1961	33.2 °C28 August 1961	2.7 °C15 January 1961	15.8 °C	1,100 mm	2	0
1960	30.8 °C24 July 1960	0.7 °C12 January 1960	15.0 °C	1,721 mm	2	0
1959	33.0 °C7 July 1959	3.5 °C3 February 1959	15.4 °C	1,273 mm	5	0
1958	30.4 °C4 August 1958	4.2 °C21 January 1958	14.9 °C	1,185 mm	1	0
1957	31.2 °C29 July 1957	0.3 °C17 January 1957	14.9 °C	767 mm	4	0
1956	29.6 °C25 July 1956	-1.1 °C11 February 1956	14.1 °C	1,063 mm	0	2
1955	29.2 °C22 August 1955	2.4 °C8 March 1955	15.7 °C	1,078 mm	0	0
1954	30.0 °C23 July 1954	-0.6 °C5 February 1954	14.6 °C	840 mm	1	1
1953	31.8 °C5 August 1953	2.4 °C5 January 1953	15.3 °C	584 mm	4	0
1952	30.5 °C10 July 1952	1.7 °C28 January 1952	15.0 °C	938 mm	1	0
1951	30.2 °C26 July 1951	3.2 °C30 January 1951	14.7 °C	1,137 mm	1	0
1950	29.9 °C14 August 1950	2.3 °C30 December 1950	15.2 °C	949 mm	0	0
1949	33.2 °C28 July 1949	2.2 °C11 January 1949	15.8 °C	619 mm	11	0
1948	31.4 °C26 June 1948	1.1 °C22 February 1948	15.7 °C	977 mm	3	0
1947	31.4 °C9 June 1947	0.9 °C26 January 1947	15.4 °C	1,172 mm	2	0
1946	33.6 °C10 July 1946	1.2 °C22 December 1946	14.8 °C	934 mm	7	0
1945	31.9 °C12 June 1945	-0.3 °C13 January 1945	15.8 °C	749 mm	6	1
1944	31.8 °C10 August 1944	0.3 °C24 February 1944	15.1 °C	541 mm	3	0
1943	33.3 °C15 August 1943	3.0 °C14 December 1943	15.5 °C	765 mm	13	0
1942	32.9 °C10 September 1942	1.7 °C8 January 1942	14.9 °C	1,177 mm	4	0
1941	35.8 °C21 July 1941	-1.8 °C11 January 1941	15.0 °C	1,384 mm	6	2
1940	32.2 °C31 August 1940	-0.1 °C23 January 1940	14.8 °C	1,099 mm	5	1

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

19.6 °C

+1.0 °C

Hot days (≥ 30 °C)

4 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1421 mm

+426 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	15.0 °C	+1.8 °C	212 mm	+84 mm
Feb	15.4 °C	+1.3 °C	67 mm	-49 mm
Mar	15.9 °C	0.0 °C	188 mm	+84 mm
Apr	18.6 °C	+1.4 °C	169 mm	+81 mm
May	20.3 °C	+1.2 °C	66 mm	-8 mm
Jun	23.9 °C	+1.9 °C	18 mm	-12 mm
Jul	25.7 °C	+1.6 °C	7 mm	-3 mm
Aug	25.3 °C	+1.0 °C	5 mm	-8 mm
Sep	22.6 °C	-0.4 °C	43 mm	-5 mm
Oct	21.6 °C	+1.6 °C	144 mm	+28 mm
Nov	16.6 °C	+0.4 °C	315 mm	+183 mm
Dec	14.2 °C	+0.3 °C	189 mm	+52 mm

The year's extremes

Hottest day

31.1 °C

3 Aug 2025

Coldest day

3.6 °C

15 Jan 2025

Wettest day

80.2 mm

13 Nov 2025

Windiest day

62.5 km/h

20 Mar 2025

Strongest gust

94.3 km/h

20 Mar 2025

Hottest feels-like

33.9 °C

8 Jul 2025

Coldest feels-like

0.1 °C

15 Jan 2025

Sunniest day

14.9 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 Aradas?

Aradas has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 15.3 °C and it receives 995 mm of precipitation per year.

What is the hottest day ever recorded in Aradas?

The hottest day measured in Aradas between 1940 and 2025 was 13 July 2022, reaching 36.0 °C.

What is the coldest day in Aradas?

The coldest day measured in Aradas between 1940 and 2025 was 11 January 1941, at -1.8 °C.

Does it snow in Aradas?

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

Has the climate of Aradas warmed?

Yes: Aradas warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Aradas?

The wettest day measured in Aradas between 1940 and 2025 was 5 October 1981, with 83 mm of rain in 24 hours.

What was the windiest day in Aradas?

The windiest day measured in Aradas between 1940 and 2025 was 15 February 1941, with winds reaching 70.6 km/h.

What is the warmest month in Aradas?

The warmest month in Aradas is August (20.3 °C on average); the coldest is January (10.4 °C).

How much does it rain in Aradas?

Aradas receives on average 995 mm of precipitation per year, spread over about 108 rainy days.

Is it sunny in Aradas?

Aradas gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.

What is the biggest single-day snowfall in Aradas?

The heaviest 24-hour snowfall measured in Aradas between 1940 and 2025 was 23 February 1956, with 1.3 cm.

Are there tropical nights in Aradas?

Yes: Aradas has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Aradas?

In Aradas, between 1940 and 2025, the highest apparent temperature reached 38.3 °C on 14 June 1981, and the lowest was -7.3 °C on 1 March 2005.

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