Month guide · São João das Lampas, Portugal
São João das Lampas in May: weather and what to expect
In May, São João das Lampas averages highs of 18°C and lows of 13°C, with about 7 rainy days and 51 mm of rain. Highs are 2°C warmer than in April and 3°C cooler than in June. Crowds in the Lisbon area are high.
Is May a good time to visit?
Good for
No verdicts for São João das Lampas 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 3°C over the month. A day above 25°C happens in roughly 1 May in 4; nights below 10°C in about 1 in 3.
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 São João das Lampas |
|---|---|---|---|
| Marinhais, Oeste e Vale do Tejo | 24°C | 8 | 63 km |
| Benavente, Oeste e Vale do Tejo | 24°C | 8 | 52 km |
| Salvaterra de Magos, Oeste e Vale do Tejo | 24°C | 8 | 55 km |
| Samora Correia, Oeste e Vale do Tejo | 23°C | 7 | 46 km |
| Pontével, Oeste e Vale do Tejo | 23°C | 8 | 57 km |
The nearest towns with a warmer May. Distances are in a straight line.
How May is changing
Town-level · ERA5-LandMay highs are 0.8°C warmer than in 1991-2000, and May rainfall is down about 40% (2016-2025 against 1991-2000). Days above 20°C in May went from 4.2 to 7.9 a year on average.
Questions about São João das Lampas in May
How warm is São João das Lampas in May?
Average highs are 18°C and lows 13°C. April averages 16°C and June 21°C.
Does it rain much in São João das Lampas in May?
About 7 days have at least 1 mm of rain, with 51 mm in total over the month.
Is São João das Lampas busy in May?
In May 2025, nights booked through online platforms in the Lisbon area were about 75% of the busiest month, which we count as high. The figure is for the whole region and leaves out hotels.
How long are the days in São João das Lampas in May?
About 14 h 16 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