Month guide · Oleiros, Portugal
Oleiros in September: weather and what to expect
September is the last month of the year with average highs above 25°C in Oleiros. September highs in Oleiros are now 2.1°C warmer than in 1991-2000. In September, Oleiros averages highs of 26°C and lows of 14°C, with about 6 rainy days and 56 mm of rain. Our rules rate it good for walking and cycling. Crowds in Centro are medium.
Is September a good time to visit?
Good for
- Walking and cyclingHighs of 26°C with about 6 rainy days
Not ideal for
Nothing stands out as a weaker fit.
Daily highs through September
Town-level · ERA5-Land 1991-2020Highs fall about 5°C over the month. Nights below 10°C in about 1 in 2.
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 Oleiros |
|---|---|---|---|
| Vila Velha de Ródão, Centro | 28°C | 5 | 36 km |
| Sardoal, Oeste e Vale do Tejo | 27°C | 5 | 48 km |
| Atalaia, Alentejo | 27°C | 6 | 52 km |
| Nisa, Alentejo | 27°C | 5 | 50 km |
| Gavião, Alentejo | 27°C | 6 | 51 km |
The nearest towns with a warmer September. Distances are in a straight line.
How September is changing
Town-level · ERA5-LandSeptember highs are 2.1°C warmer than in 1991-2000, and September rainfall is down about 20% (2016-2025 against 1991-2000). Days above 30°C in September went from 3.7 to 5.3 a year on average.
Questions about Oleiros in September
Is September a good time to visit Oleiros?
Our rules rate September good for walking and cycling (highs of 26°C with about 6 rainy days).
How warm is Oleiros in September?
Average highs are 26°C and lows 14°C. August averages 29°C and October 20°C.
Does it rain much in Oleiros in September?
About 6 days have at least 1 mm of rain, with 56 mm in total over the month.
Is Oleiros busy in September?
In September 2025, nights booked through online platforms in Centro were about 40% 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 Oleiros in September?
About 12 h 31 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