Aveiro climate — normals and trends
Aveiro (Brazil) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.2 °C and it receives 2,396 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 October (27.6 °C on average) and the coldest is February (25.3 °C). Rainfall peaks in March.
Aveiro averages 0 frost days, 200 hot days (≥ 30 °C) and 266 rainy days per year.
Aveiro has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.5 °C (on 8 September 1958) and the coldest 19.9 °C (on 5 April 1971).
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
AveiroPará
- coords
- -3.61°, -55.33°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.2°C
Average daily high
30.3°C
Average daily low
23.4°C
Annual rainfall
2,396mm
Sunshine / day
9.7h
Mean relative humidity
85%
Average peak wind
9.1km/h
Seasonal range
2.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
200 d/yr
Rainy days (≥ 1 mm)
266 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.2 °C
Average feels-like low
27.6 °C
Average peak gust
28.7 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
17.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.33 · p = < 0.001
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
37.5 °C
8 September 1958
Coldest day
19.9 °C
5 April 1971
Wettest day
243 mm
6 March 2004
Windiest day
20.6 km/h
16 January 1965
Strongest gust
52.9 km/h
13 July 1940
Hottest feels-like
43.7 °C
8 November 1997
Coldest feels-like
22.2 °C
7 July 1974
Sunniest day
12.2 h
27 November 1940
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
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 30.2 °C | +1.2 °C | 342 mm | +16 mm |
| Feb | 29.7 °C | +0.7 °C | 400 mm | +86 mm |
| Mar | 29.7 °C | +0.5 °C | 361 mm | +3 mm |
| Apr | 31.2 °C | +1.9 °C | 242 mm | -88 mm |
| May | 31.1 °C | +1.6 °C | 122 mm | -105 mm |
| Jun | 30.5 °C | +0.7 °C | 78 mm | -26 mm |
| Jul | 31.4 °C | +1.0 °C | 42 mm | -40 mm |
| Aug | 31.4 °C | -0.1 °C | 97 mm | +23 mm |
| Sep | 32.6 °C | +0.6 °C | 30 mm | -54 mm |
| Oct | 32.0 °C | -0.1 °C | 148 mm | +41 mm |
| Nov | 32.1 °C | +0.9 °C | 102 mm | -55 mm |
| Dec | 30.3 °C | +0.3 °C | 227 mm | -7 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Aveiro?
Aveiro has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.2 °C and it receives 2,396 mm of precipitation per year.
What is the hottest day ever recorded in Aveiro?
The hottest day measured in Aveiro between 1940 and 2025 was 8 September 1958, reaching 37.5 °C.
What is the coldest day in Aveiro?
The coldest day measured in Aveiro between 1940 and 2025 was 5 April 1971, at 19.9 °C.
Does it snow in Aveiro?
Almost never: Aveiro sees virtually no snow, with about 0 frost days per year.
Has the climate of Aveiro warmed?
Yes: Aveiro warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aveiro?
The wettest day measured in Aveiro between 1940 and 2025 was 6 March 2004, with 243 mm of rain in 24 hours.
What was the windiest day in Aveiro?
The windiest day measured in Aveiro between 1940 and 2025 was 16 January 1965, with winds reaching 20.6 km/h.
What is the warmest month in Aveiro?
The warmest month in Aveiro is October (27.6 °C on average); the coldest is February (25.3 °C).
How much does it rain in Aveiro?
Aveiro receives on average 2,396 mm of precipitation per year, spread over about 266 rainy days.
Is it sunny in Aveiro?
Aveiro gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
Are there tropical nights in Aveiro?
Yes: Aveiro has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aveiro?
In Aveiro, between 1940 and 2025, the highest apparent temperature reached 43.7 °C on 8 November 1997, and the lowest was 22.2 °C on 7 July 1974.
Compare Aveiro with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aveiro