Month guide · Aveiro, Portugal
Aveiro in August: weather and what to expect
In August, Aveiro averages highs of 27°C and lows of 17°C, with about 4 rainy days and 20 mm of rain. Highs are 1°C warmer than in July and 2°C warmer than in September. Crowds in Centro are at their peak.
Is August a good time to visit?
Good for
No verdicts for Aveiro in August yet. They only use climate values that are precise enough to judge with.
Not ideal for
Nothing stands out as a weaker fit.
Daily highs through August
Town-level · ERA5-Land 1991-2020Highs stay about the same through the month. A day above 35°C happens in roughly 1 August in 2.
August in detail
Town-level · ERA5-LandCrowds, holidays and daylight
Public holidays in August 2027
- 15 Aug Assumption Day
Local (municipal) holidays are not included.
Warmer in August
Where is warm in August →| Place | High | Rain days | From Aveiro |
|---|---|---|---|
| Alcains, Centro | 31°C | 2 | 129 km |
| Tomar, Alentejo | 31°C | 3 | 118 km |
| Sertã, Centro | 31°C | 3 | 105 km |
| Aldeia de Joanes, Centro | 31°C | 3 | 111 km |
| Fundão, Centro | 30°C | 3 | 112 km |
The nearest towns with a warmer August. Distances are in a straight line.
How August is changing
Town-level · ERA5-LandAugust highs are 1.2°C warmer than in 1991-2000, and August rainfall is down about 65% (2016-2025 against 1991-2000). Days above 30°C in August went from 6.3 to 7.2 a year on average.
Questions about Aveiro in August
How warm is Aveiro in August?
Average highs are 27°C and lows 17°C. July averages 27°C and September 25°C.
Does it rain much in Aveiro in August?
About 4 days have at least 1 mm of rain, with 20 mm in total over the month.
Is Aveiro busy in August?
In August 2025, nights booked through online platforms in Centro were the busiest month of the year, which we count as peak. The figure is for the whole region and leaves out hotels.
How long are the days in Aveiro in August?
About 13 h 50 min from sunrise to sunset in the middle of the month.
Sources
Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology