Month guide · Montemor-o-Novo, Portugal
Montemor-o-Novo in May: weather and what to expect
In May, Montemor-o-Novo averages highs of 24°C and lows of 12°C, with about 8 rainy days and 55 mm of rain. Highs are 4°C warmer than in April and 5°C cooler than in June. Crowds in the Alentejo are low.
Is May a good time to visit?
Good for
No verdicts for Montemor-o-Novo 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 5°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 Montemor-o-Novo |
|---|---|---|---|
| Coruche, Oeste e Vale do Tejo | 24°C | 8 | 44 km |
| Cuba, Alentejo | 24°C | 7 | 61 km |
| Montargil, Alentejo | 24°C | 8 | 48 km |
| Avis, Alentejo | 24°C | 8 | 53 km |
| Redondo, Alentejo | 24°C | 7 | 58 km |
The nearest towns with a warmer May. Distances are in a straight line.
How May is changing
Town-level · ERA5-LandMay highs are 2.1°C warmer than in 1991-2000, and May rainfall is down about 40% (2016-2025 against 1991-2000). Days above 25°C in May went from 8.9 to 15 a year on average.
Questions about Montemor-o-Novo in May
How warm is Montemor-o-Novo in May?
Average highs are 24°C and lows 12°C. April averages 20°C and June 28°C.
Does it rain much in Montemor-o-Novo in May?
About 8 days have at least 1 mm of rain, with 55 mm in total over the month.
Is Montemor-o-Novo 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 Montemor-o-Novo in May?
About 14 h 15 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