Month guide · Rosto de Cão, Portugal
Rosto de Cão in September: weather and what to expect
In September, Rosto de Cão averages highs of 23°C and lows of 20°C, with about 13 rainy days and 72 mm of rain. Highs are 1°C cooler than in August and 2°C warmer than in October. Crowds in the Azores are high.
Is September a good time to visit?
Good for
No verdicts for Rosto de Cão in September yet. They only use climate values that are precise enough to judge with.
Not ideal for
- Reliable dry weatherAbout 13 rainy days in the month
Daily highs through September
Town-level · ERA5-Land 1991-2020Highs fall about 1°C over the month.
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 Rosto de Cão |
|---|---|---|---|
| Benavente, Oeste e Vale do Tejo | 28°C | 5 | 1,472 km |
| Salvaterra de Magos, Oeste e Vale do Tejo | 28°C | 5 | 1,473 km |
| Vale de Santarém, Oeste e Vale do Tejo | 28°C | 5 | 1,479 km |
| Samora Correia, Oeste e Vale do Tejo | 27°C | 5 | 1,466 km |
| Pontével, Oeste e Vale do Tejo | 27°C | 5 | 1,469 km |
The nearest towns with a warmer September. Distances are in a straight line.
How September is changing
Town-level · ERA5-LandSeptember highs are 0.4°C warmer than in 1991-2000, and September rainfall is about the same (2016-2025 against 1991-2000). Days above 25°C in September went from 3.0 to 5.5 a year on average.
Questions about Rosto de Cão in September
Is September a good time to visit Rosto de Cão?
It is less suited to reliable dry weather (about 13 rainy days in the month).
How warm is Rosto de Cão in September?
Average highs are 23°C and lows 20°C. August averages 24°C and October 21°C.
Does it rain much in Rosto de Cão in September?
About 13 days have at least 1 mm of rain, with 72 mm in total over the month.
Is Rosto de Cão busy in September?
In September 2025, nights booked through online platforms in the Azores were about 65% 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 Rosto de Cão in September?
About 12 h 29 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