Month guide · Azeitão, Portugal
Azeitão in September: weather and what to expect
September highs in Azeitão are now 1.2°C warmer than in 1991-2000. The sea is still cool, around 19°C. In September, Azeitão averages highs of 24°C and lows of 17°C, with about 4 rainy days and 29 mm of rain. Our rules rate it good for walking and cycling. Crowds in the Lisbon area are high.
Is September a good time to visit?
Good for
- Walking and cyclingHighs of 24°C with about 4 rainy days
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 30°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 Azeitão |
|---|---|---|---|
| Marinhais, Oeste e Vale do Tejo | 28°C | 5 | 65 km |
| Vendas Novas, Alentejo | 28°C | 5 | 51 km |
| Benavente, Oeste e Vale do Tejo | 28°C | 5 | 54 km |
| Salvaterra de Magos, Oeste e Vale do Tejo | 28°C | 5 | 60 km |
| Samora Correia, Oeste e Vale do Tejo | 27°C | 5 | 48 km |
The nearest towns with a warmer September. Distances are in a straight line.
How September is changing
Town-level · ERA5-LandSeptember highs are 1.2°C warmer than in 1991-2000, and September rainfall is down about 30% (2016-2025 against 1991-2000). Days above 25°C in September went from 6.1 to 9.8 a year on average.
Questions about Azeitão in September
Is September a good time to visit Azeitão?
Our rules rate September good for walking and cycling (highs of 24°C with about 4 rainy days).
How warm is Azeitão in September?
Average highs are 24°C and lows 17°C. August averages 26°C and October 21°C.
Does it rain much in Azeitão in September?
About 4 days have at least 1 mm of rain, with 29 mm in total over the month.
Is Azeitão 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 Azeitão 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