Month guide · Campo Maior, Portugal
Campo Maior in May: weather and what to expect
May is the first month of the year with average highs above 20°C in Campo Maior. In May, Campo Maior is among the 100 warmest of 759 towns in Portugal. In May, Campo Maior averages highs of 24°C and lows of 13°C, with about 7 rainy days and 42 mm of rain. Crowds in the Alentejo are low.
Is May a good time to visit?
Good for
No verdicts for Campo Maior in May 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 May
Town-level · ERA5-Land 1991-2020Highs climb about 6°C over the month.
May in detail
Town-level · ERA5-LandCrowds, holidays and daylight
Public holidays in May 2027
- 1 May Labor Day
- 27 May Corpus Christi
Local (municipal) holidays are not included.
Warmer in May
Where is warm in May →| Place | High | Rain days | From Campo Maior |
|---|---|---|---|
| Moura, Alentejo | 25°C | 7 | 103 km |
| Reguengos de Monsaraz, Alentejo | 24°C | 7 | 77 km |
| Ponte de Sôr, Alentejo | 24°C | 8 | 85 km |
| Vidigueira, Alentejo | 24°C | 7 | 110 km |
| Cuba, Alentejo | 24°C | 7 | 119 km |
The nearest towns with a warmer May. Distances are in a straight line.
How May is changing
Town-level · ERA5-LandMay highs are 2.0°C warmer than in 1991-2000, and May rainfall is down about 40% (2016-2025 against 1991-2000). Days above 30°C in May went from 2.9 to 5.4 a year on average.
Questions about Campo Maior in May
How warm is Campo Maior in May?
Average highs are 24°C and lows 13°C. April averages 20°C and June 29°C.
Does it rain much in Campo Maior in May?
About 7 days have at least 1 mm of rain, with 42 mm in total over the month.
Is Campo Maior busy in May?
In May 2025, nights booked through online platforms in the Alentejo were about 30% of the busiest month, which we count as low. The figure is for the whole region and leaves out hotels.
How long are the days in Campo Maior in May?
About 14 h 17 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