Month guide · Oleiros, Portugal
Oleiros in May: weather and what to expect
In May, Oleiros averages highs of 21°C and lows of 10°C, with about 11 rainy days and 87 mm of rain. Highs are 4°C warmer than in April and 5°C cooler than in June. Crowds in Centro are low.
Is May a good time to visit?
Good for
No verdicts for Oleiros in May yet. They only use climate values that are precise enough to judge with.
Not ideal for
- Reliable dry weatherAbout 11 rainy days in the month
Daily highs through May
Town-level · ERA5-Land 1991-2020Highs climb about 5°C over the month. A day above 30°C happens in roughly 1 May in 3; nights below 5°C in about 1 in 2.
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 Oleiros |
|---|---|---|---|
| Alferrarede, Oeste e Vale do Tejo | 24°C | 9 | 53 km |
| Pego, Oeste e Vale do Tejo | 24°C | 9 | 55 km |
| Vila Velha de Ródão, Centro | 24°C | 8 | 36 km |
| Atalaia, Alentejo | 23°C | 9 | 52 km |
| Sardoal, Oeste e Vale do Tejo | 23°C | 9 | 48 km |
The nearest towns with a warmer May. Distances are in a straight line.
How May is changing
Town-level · ERA5-LandMay highs are 1.6°C warmer than in 1991-2000, and May rainfall is down about 55% (2016-2025 against 1991-2000). Days above 25°C in May went from 5.4 to 8.5 a year on average.
Questions about Oleiros in May
Is May a good time to visit Oleiros?
It is less suited to reliable dry weather (about 11 rainy days in the month).
How warm is Oleiros in May?
Average highs are 21°C and lows 10°C. April averages 17°C and June 26°C.
Does it rain much in Oleiros in May?
About 11 days have at least 1 mm of rain, with 87 mm in total over the month.
Is Oleiros busy in May?
In May 2025, nights booked through online platforms in Centro 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 Oleiros in May?
About 14 h 21 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