Month guide · Seia, Portugal
Seia in October: weather and what to expect
In October, Seia averages highs of 19°C and lows of 11°C, with about 12 rainy days and 141 mm of rain. Highs are 5°C cooler than in September and 5°C warmer than in November. Crowds in Centro are low.
Is October a good time to visit?
Good for
No verdicts for Seia in October 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 October
Town-level · ERA5-Land 1991-2020Highs fall about 5°C over the month. A day above 25°C happens in roughly 1 October in 2; nights below 5°C in about 1 in 3.
October in detail
Town-level · ERA5-LandCrowds, holidays and daylight
Public holidays in October 2027
- 5 Oct Republic Day
Local (municipal) holidays are not included.
Warmer in October
Where is warm in October →| Place | High | Rain days | From Seia |
|---|---|---|---|
| Alferrarede, Oeste e Vale do Tejo | 23°C | 10 | 111 km |
| Pego, Oeste e Vale do Tejo | 23°C | 10 | 113 km |
| Montalvo, Oeste e Vale do Tejo | 23°C | 10 | 115 km |
| Tomar, Oeste e Vale do Tejo | 22°C | 11 | 108 km |
| Tramagal, Oeste e Vale do Tejo | 22°C | 10 | 117 km |
The nearest towns with a warmer October. Distances are in a straight line.
How October is changing
Town-level · ERA5-LandOctober highs are 2.7°C warmer than in 1991-2000, and October rainfall is about the same (2016-2025 against 1991-2000). Days above 25°C in October went from 1.0 to 6.8 a year on average.
Questions about Seia in October
Is October a good time to visit Seia?
It is less suited to reliable dry weather (about 12 rainy days in the month).
How warm is Seia in October?
Average highs are 19°C and lows 11°C. September averages 25°C and November 14°C.
Does it rain much in Seia in October?
About 12 days have at least 1 mm of rain, with 141 mm in total over the month.
Is Seia busy in October?
In October 2025, nights booked through online platforms in Centro 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 Seia in October?
About 11 h 12 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