Month guide · Póvoa de Santa Iria, Portugal
Póvoa de Santa Iria in September: weather and what to expect
In September, Póvoa de Santa Iria averages highs of 27°C and lows of 17°C, with about 5 rainy days and 34 mm of rain. Highs are 2°C cooler than in August and 4°C warmer than in October. Crowds in the Lisbon area are high.
Is September a good time to visit?
Good for
No verdicts for Póvoa de Santa Iria in September 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 September
Town-level · ERA5-Land 1991-2020Highs fall about 3°C over the month. A day above 35°C happens in roughly 1 September in 3.
September in detail
Town-level · ERA5-LandCrowds, holidays and daylight
Public holidays in September 2027
No national or regional public holidays.
Local (municipal) holidays are not included.
Warmer in September
Where is warm in September →| Place | High | Rain days | From Póvoa de Santa Iria |
|---|---|---|---|
| Marinhais, Oeste e Vale do Tejo | 28°C | 5 | 38 km |
| Benavente, Oeste e Vale do Tejo | 28°C | 5 | 26 km |
| Salvaterra de Magos, Oeste e Vale do Tejo | 28°C | 5 | 30 km |
| Samora Correia, Oeste e Vale do Tejo | 27°C | 5 | 19 km |
| Pontével, Oeste e Vale do Tejo | 27°C | 5 | 38 km |
The nearest towns with a warmer September. Distances are in a straight line.
How September is changing
Town-level · ERA5-LandSeptember highs are 1.7°C warmer than in 1991-2000, and September rainfall is down about 15% (2016-2025 against 1991-2000). Days above 30°C in September went from 3.2 to 5.8 a year on average.
Questions about Póvoa de Santa Iria in September
How warm is Póvoa de Santa Iria in September?
Average highs are 27°C and lows 17°C. August averages 29°C and October 22°C.
Does it rain much in Póvoa de Santa Iria in September?
About 5 days have at least 1 mm of rain, with 34 mm in total over the month.
Is Póvoa de Santa Iria busy in September?
In September 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 Póvoa de Santa Iria in September?
About 12 h 30 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