Barro climate — normals and trends

Barro (Portugal) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 15.0 °C and it receives 1,025 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 (21.2 °C on average) and the coldest is January (9.0 °C). Rainfall peaks in December.

Barro averages 3 frost days, 23 hot days (≥ 30 °C) and 108 rainy days per year.

Barro has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.

The number of frost days there went from about 6 to 0 per year over the period.

The hottest day of the period reached 40.8 °C (on 13 July 2022) and the coldest -4.5 °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

BarroAveiro District

coords
40.62°, -8.62°
period
19402025 · 86 yrs
CsbWarm-summer MediterraneanWarmest monthJulyColdest monthJanuaryWettest monthDecemberDriest monthJuly

Mean daily temperature

15.0°C

Average daily high

19.8°C

Average daily low

10.9°C

Annual rainfall

1,025mm

Sunshine / day

10.0h

Mean relative humidity

77%

Average peak wind

17.5km/h

Seasonal range

12.2°C

Frost days (< 0 °C)

3 d/yr

Hot days (≥ 30 °C)

23 d/yr

Rainy days (≥ 1 mm)

108 d/yr

Annual snowfall

0.1 cm

Average feels-like high

19.0 °C

Average feels-like low

9.5 °C

Average peak gust

35.6 km/h

Tropical nights (≥ 20 °C)

4 d/yr

Solar radiation

16.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.32 · p = < 0.001

1940Each stripe is one year, from 1940 (left) to 2025 (right). Blue = colder than the period average, red = warmer.2025

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

40.8 °C

13 July 2022

Coldest day

-4.5 °C

11 January 1941

Wettest day

83 mm

13 November 2025

Windiest day

58.5 km/h

15 February 1941

Strongest gust

116.3 km/h

30 December 1981

Hottest feels-like

43.4 °C

14 June 1981

Coldest feels-like

-9.1 °C

11 January 1941

Snowiest day

6.2 cm

23 February 1956

Sunniest day

14.9 h

12 June 1940

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202536.6 °C3 August 2025-0.4 °C15 January 202516.2 °C1,411 mm371
202436.4 °C23 July 20241.9 °C7 January 202416.2 °C1,033 mm180
202338.3 °C7 August 2023-0.4 °C26 January 202316.3 °C977 mm243
202240.8 °C13 July 20221.3 °C31 January 202216.3 °C999 mm270
202135.7 °C16 July 2021-2.0 °C6 January 202115.4 °C926 mm128
202037.8 °C17 July 2020-1.4 °C27 December 202016.0 °C826 mm351
201933.4 °C22 August 20190.2 °C4 February 201915.3 °C984 mm160
201838.8 °C4 August 2018-0.6 °C8 February 201815.3 °C1,118 mm241
201737.9 °C20 August 2017-1.2 °C20 January 201715.9 °C620 mm305
201638.7 °C7 August 20161.5 °C17 February 201615.5 °C1,195 mm370
201535.7 °C20 June 2015-0.3 °C7 February 201515.7 °C643 mm211
201433.5 °C14 June 20141.0 °C31 December 201415.5 °C1,377 mm150
201338.2 °C4 July 20131.0 °C9 December 201315.3 °C1,160 mm390
201237.7 °C17 July 2012-1.5 °C3 February 201214.9 °C710 mm183
201135.5 °C26 June 20110.5 °C30 January 201115.9 °C921 mm230
201037.7 °C27 July 2010-1.8 °C17 December 201015.4 °C1,104 mm392
200934.9 °C30 August 2009-2.6 °C9 January 200915.6 °C1,065 mm217
200833.0 °C15 July 20080.2 °C26 December 200814.8 °C813 mm90
200736.1 °C29 July 2007-0.4 °C17 December 200715.1 °C594 mm201
200637.1 °C16 July 2006-1.5 °C28 January 200615.8 °C1,093 mm373
200539.0 °C14 August 2005-2.6 °C2 March 200515.3 °C696 mm347
200434.7 °C14 July 20040.0 °C21 January 200415.2 °C653 mm230
200339.7 °C1 August 2003-0.8 °C10 January 200315.6 °C1,109 mm346
200234.5 °C17 July 20021.1 °C8 January 200215.3 °C1,142 mm110
200135.5 °C1 July 2001-2.1 °C25 December 200115.2 °C1,200 mm264
200035.4 °C17 June 2000-0.2 °C22 January 200015.1 °C1,292 mm201
199938.3 °C8 July 19990.3 °C17 December 199915.0 °C934 mm180
199836.2 °C6 August 1998-0.2 °C6 December 199815.5 °C819 mm231
199736.7 °C26 July 1997-0.5 °C6 January 199716.2 °C1,293 mm191
199635.1 °C12 June 1996-0.8 °C22 February 199615.1 °C1,245 mm272
199537.4 °C24 July 19951.1 °C15 January 199516.5 °C1,001 mm270
199435.8 °C22 June 19940.0 °C26 December 199415.0 °C946 mm80
199338.3 °C23 July 1993-1.0 °C1 March 199314.5 °C1,028 mm252
199235.3 °C14 July 1992-0.9 °C20 January 199214.9 °C684 mm282
199138.1 °C17 August 19910.0 °C15 January 199115.2 °C764 mm420
199037.8 °C18 July 1990-1.3 °C23 December 199015.7 °C731 mm312
198938.1 °C28 July 19891.0 °C2 January 198916.2 °C976 mm310
198838.4 °C6 September 1988-0.3 °C16 December 198815.0 °C915 mm171
198738.4 °C2 August 1987-2.3 °C14 January 198715.8 °C1,016 mm472
198635.3 °C20 July 19860.8 °C9 February 198614.6 °C847 mm160
198535.9 °C10 September 1985-2.5 °C15 January 198515.0 °C1,168 mm297
198436.4 °C31 August 19840.1 °C11 January 198414.5 °C1,116 mm190
198336.9 °C6 September 1983-2.4 °C14 February 198314.9 °C976 mm224
198236.2 °C10 August 19821.4 °C1 December 198214.9 °C757 mm190
198138.7 °C14 June 19810.1 °C11 January 198115.3 °C1,032 mm330
198035.5 °C20 August 1980-3.2 °C15 January 198014.6 °C774 mm144
197934.9 °C11 August 1979-0.3 °C17 February 197914.6 °C1,374 mm212
197836.6 °C24 August 1978-0.9 °C11 February 197814.9 °C1,381 mm303
197735.3 °C6 September 19770.6 °C23 November 197714.6 °C1,342 mm110
197636.7 °C23 July 1976-0.4 °C27 January 197614.5 °C964 mm132
197534.1 °C30 July 19750.2 °C31 December 197514.4 °C812 mm100
197435.0 °C10 July 19740.9 °C1 January 197414.2 °C1,004 mm240
197333.9 °C26 July 1973-0.6 °C17 February 197314.5 °C1,027 mm171
197236.2 °C13 July 1972-0.2 °C1 January 197213.8 °C1,282 mm112
197134.0 °C10 July 1971-2.5 °C2 January 197114.1 °C1,033 mm144
197036.2 °C4 September 1970-2.2 °C27 December 197014.5 °C987 mm275
196936.0 °C13 July 1969-0.6 °C14 December 196914.4 °C1,357 mm211
196837.4 °C30 June 19680.2 °C29 December 196814.8 °C1,164 mm150
196733.7 °C29 June 1967-0.9 °C12 January 196714.5 °C760 mm85
196636.0 °C7 September 1966-0.2 °C25 December 196614.9 °C1,636 mm281
196535.4 °C27 August 1965-1.8 °C20 February 196514.5 °C1,278 mm187
196436.8 °C3 August 1964-1.3 °C28 January 196414.6 °C1,001 mm246
196337.4 °C10 August 1963-2.9 °C2 February 196314.6 °C1,505 mm215
196236.8 °C28 August 1962-3.5 °C26 December 196214.8 °C845 mm273
196138.1 °C28 August 1961-0.6 °C15 January 196115.7 °C1,072 mm271
196035.8 °C25 July 1960-2.8 °C12 January 196014.7 °C1,750 mm124
195937.2 °C7 July 19590.4 °C4 January 195915.0 °C1,325 mm200
195835.5 °C4 August 19580.7 °C27 February 195814.5 °C1,259 mm90
195735.6 °C29 July 1957-2.0 °C16 January 195714.7 °C792 mm247
195633.2 °C25 July 1956-3.6 °C11 February 195613.5 °C1,079 mm914
195534.0 °C22 August 1955-1.1 °C8 March 195515.5 °C1,120 mm144
195435.8 °C23 July 1954-3.3 °C5 February 195414.3 °C865 mm2016
195336.2 °C5 August 1953-1.1 °C5 January 195315.0 °C569 mm354
195235.4 °C10 July 1952-1.9 °C28 January 195214.6 °C996 mm142
195134.4 °C26 July 19510.1 °C30 January 195114.4 °C1,177 mm150
195034.6 °C14 August 1950-1.2 °C30 December 195014.8 °C973 mm144
194938.3 °C28 July 1949-1.3 °C11 January 194915.4 °C597 mm362
194834.5 °C26 June 1948-1.4 °C22 February 194815.4 °C1,056 mm201
194734.8 °C9 June 1947-2.8 °C26 January 194715.2 °C1,273 mm175
194638.5 °C30 July 1946-2.4 °C22 December 194614.4 °C938 mm249
194538.6 °C23 July 1945-3.3 °C13 January 194515.8 °C777 mm4311
194436.2 °C10 August 1944-2.8 °C24 February 194414.9 °C557 mm3512
194338.5 °C15 August 19430.2 °C20 November 194315.3 °C799 mm420
194235.8 °C23 August 1942-1.8 °C8 January 194214.5 °C1,157 mm2819
194140.0 °C21 July 1941-4.5 °C11 January 194114.8 °C1,430 mm4310
194036.9 °C17 August 1940-3.3 °C23 January 194014.6 °C1,118 mm3016

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?

Across the whole year

Average daily high
21.1 °C
+1.3 °C
Hot days (≥ 30 °C)
37 d/yr
+14
Frost days (< 0 °C)
1 d/yr
-2
Annual rainfall
1411 mm
+386 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan14.9 °C+1.9 °C232 mm+103 mm
Feb15.9 °C+1.7 °C65 mm-53 mm
Mar16.5 °C-0.1 °C189 mm+78 mm
Apr19.6 °C+1.3 °C175 mm+79 mm
May22.2 °C+1.5 °C74 mm-6 mm
Jun27.1 °C+2.8 °C12 mm-23 mm
Jul29.2 °C+2.1 °C7 mm-5 mm
Aug29.0 °C+1.7 °C5 mm-10 mm
Sep24.8 °C-0.4 °C37 mm-15 mm
Oct23.5 °C+2.5 °C146 mm+30 mm
Nov16.5 °C+0.3 °C302 mm+175 mm
Dec14.0 °C+0.5 °C168 mm+33 mm

The year's extremes

Hottest day
36.6 °C
3 Aug 2025
Coldest day
-0.4 °C
15 Jan 2025
Wettest day
82.8 mm
13 Nov 2025
Windiest day
48.5 km/h
20 Mar 2025
Strongest gust
83.9 km/h
20 Mar 2025
Hottest feels-like
40.0 °C
29 Jun 2025
Coldest feels-like
-4.1 °C
15 Jan 2025
Sunniest day
14.9 h
10 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 Barro?

Barro has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 15.0 °C and it receives 1,025 mm of precipitation per year.

What is the hottest day ever recorded in Barro?

The hottest day measured in Barro between 1940 and 2025 was 13 July 2022, reaching 40.8 °C.

What is the coldest day in Barro?

The coldest day measured in Barro between 1940 and 2025 was 11 January 1941, at -4.5 °C.

Does it snow in Barro?

Almost never: Barro sees virtually no snow, with about 3 frost days per year.

Has the climate of Barro warmed?

Yes: Barro warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Barro?

The wettest day measured in Barro between 1940 and 2025 was 13 November 2025, with 83 mm of rain in 24 hours.

What was the windiest day in Barro?

The windiest day measured in Barro between 1940 and 2025 was 15 February 1941, with winds reaching 58.5 km/h.

What is the warmest month in Barro?

The warmest month in Barro is July (21.2 °C on average); the coldest is January (9.0 °C).

How much does it rain in Barro?

Barro receives on average 1,025 mm of precipitation per year, spread over about 108 rainy days.

Is it sunny in Barro?

Barro gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.

What is the biggest single-day snowfall in Barro?

The heaviest 24-hour snowfall measured in Barro between 1940 and 2025 was 23 February 1956, with 6.2 cm.

Are there tropical nights in Barro?

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

What was the most extreme apparent temperature in Barro?

In Barro, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 14 June 1981, and the lowest was -9.1 °C on 11 January 1941.

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