Month guide · Serpa, Portugal
Serpa in August: weather and what to expect
In August, Serpa is one of the ten warmest towns in Portugal. August highs in Serpa are now 2.3°C warmer than in 1991-2000. In August, Serpa averages highs of 33°C and lows of 19°C, with about 1 rainy day and 5 mm of rain. Crowds in the Alentejo are at their peak.
Is August a good time to visit?
Good for
No verdicts for Serpa in August yet. They only use climate values that are precise enough to judge with.
Not ideal for
- Outdoor activity at middayAverage highs of 33°C
Daily highs through August
Town-level · ERA5-Land 1991-2020Highs fall about 2°C over the month. A day above 40°C happens in roughly 1 August in 6; nights below 15°C in about 1 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 Serpa |
|---|---|---|---|
| Mértola, Alentejo | 34°C | 1 | 34 km |
| Minas de São Domingos, Alentejo | 33°C | 1 | 32 km |
| Moura, Alentejo | 33°C | 1 | 25 km |
| Reguengos de Monsaraz, Alentejo | 33°C | 1 | 54 km |
The nearest towns with a warmer August. Distances are in a straight line.
How August is changing
Town-level · ERA5-LandAugust highs are 2.3°C warmer than in 1991-2000 (2016-2025 against 1991-2000). Days above 35°C in August went from 6.8 to 14 a year on average.
Questions about Serpa in August
Is August a good time to visit Serpa?
It is less suited to outdoor activity at midday (average highs of 33°C).
How warm is Serpa in August?
Average highs are 33°C and lows 19°C. July averages 33°C and September 29°C.
Does it rain much in Serpa in August?
About 1 day has at least 1 mm of rain, with 5 mm in total over the month.
Is Serpa busy in August?
In August 2025, nights booked through online platforms in the Alentejo 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 Serpa in August?
About 13 h 41 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