Month guide · Santo Tirso, Portugal
Santo Tirso in May: weather and what to expect
May is the first month of the year with average highs above 20°C in Santo Tirso. May highs in Santo Tirso are now 1.2°C warmer than in 1991-2000. In May, Santo Tirso averages highs of 20°C and lows of 12°C, with about 12 rainy days and 110 mm of rain. Crowds in Norte are medium.
Is May a good time to visit?
Good for
No verdicts for Santo Tirso in May yet. They only use climate values that are precise enough to judge with.
Not ideal for
- Reliable dry weatherAbout 12 rainy days in the month
Daily highs through May
Town-level · ERA5-Land 1991-2020Highs climb about 3°C over the month. A day above 30°C happens in roughly 1 May in 4.
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 Santo Tirso |
|---|---|---|---|
| Montalvo, Oeste e Vale do Tejo | 24°C | 9 | 207 km |
| Vila Velha de Ródão, Centro | 24°C | 8 | 199 km |
| Montalvinho, Oeste e Vale do Tejo | 24°C | 9 | 207 km |
| Tomar, Oeste e Vale do Tejo | 23°C | 9 | 194 km |
| Sardoal, Oeste e Vale do Tejo | 23°C | 9 | 203 km |
The nearest towns with a warmer May. Distances are in a straight line.
How May is changing
Town-level · ERA5-LandMay highs are 1.2°C warmer than in 1991-2000, and May rainfall is down about 45% (2016-2025 against 1991-2000). Days above 25°C in May went from 3.7 to 5.4 a year on average.
Questions about Santo Tirso in May
Is May a good time to visit Santo Tirso?
It is less suited to reliable dry weather (about 12 rainy days in the month).
How warm is Santo Tirso in May?
Average highs are 20°C and lows 12°C. April averages 18°C and June 24°C.
Does it rain much in Santo Tirso in May?
About 12 days have at least 1 mm of rain, with 110 mm in total over the month.
Is Santo Tirso busy in May?
In May 2025, nights booked through online platforms in Norte were about 55% of the busiest month, which we count as medium. The figure is for the whole region and leaves out hotels.
How long are the days in Santo Tirso in May?
About 14 h 28 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