Month guide · Santarém, Portugal
Santarém in May: weather and what to expect
In May, Santarém averages highs of 23°C and lows of 12°C, with about 8 rainy days and 53 mm of rain. Highs are 3°C warmer than in April and 4°C cooler than in June. Crowds in Oeste e Vale do Tejo are low.
Is May a good time to visit?
Good for
No verdicts for Santarém 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 4°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 Santarém |
|---|---|---|---|
| Almeirim, Oeste e Vale do Tejo | 24°C | 8 | 6 km |
| Bemfica, Oeste e Vale do Tejo | 24°C | 8 | 10 km |
| Vale de Santarém, Oeste e Vale do Tejo | 23°C | 8 | 6 km |
| Alpiarça, Oeste e Vale do Tejo | 23°C | 8 | 9 km |
| Vale de Figueira, Oeste e Vale do Tejo | 23°C | 8 | 9 km |
The nearest towns with a warmer May. Distances are in a straight line.
How May is changing
Town-level · ERA5-LandMay highs are 1.7°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 5.8 to 11 a year on average.
Questions about Santarém in May
How warm is Santarém in May?
Average highs are 23°C and lows 12°C. April averages 19°C and June 27°C.
Does it rain much in Santarém in May?
About 8 days have at least 1 mm of rain, with 53 mm in total over the month.
Is Santarém busy in May?
In May 2025, nights booked through online platforms in Oeste e Vale do Tejo were about 25% 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 Santarém in May?
About 14 h 18 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