Month guide · Valongo, Centro
Valongo (Centro) in September: weather and what to expect
In September, Valongo (Centro) averages highs of 25°C and lows of 15°C, with about 7 rainy days and 64 mm of rain. Highs are 2°C cooler than in August and 4°C warmer than in October. 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 25°C with about 7 rainy days
Not ideal for
Nothing stands out as a weaker fit.
Daily highs through September
Town-level · ERA5-Land 1991-2020Highs fall about 4°C over the month. Nights below 10°C in about 1 in 6.
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 Valongo |
|---|---|---|---|
| Vila Velha de Ródão, Centro | 28°C | 5 | 125 km |
| Montalvo, Oeste e Vale do Tejo | 28°C | 5 | 127 km |
| Montalvinho, Oeste e Vale do Tejo | 28°C | 5 | 127 km |
| Tomar, Oeste e Vale do Tejo | 28°C | 5 | 113 km |
| Sardoal, Oeste e Vale do Tejo | 27°C | 5 | 123 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 35% (2016-2025 against 1991-2000). Days above 30°C in September went from 2.0 to 4.6 a year on average.
Questions about Valongo (Centro) in September
Is September a good time to visit Valongo (Centro)?
Our rules rate September good for walking and cycling (highs of 25°C with about 7 rainy days).
How warm is Valongo (Centro) in September?
Average highs are 25°C and lows 15°C. August averages 28°C and October 21°C.
Does it rain much in Valongo (Centro) in September?
About 7 days have at least 1 mm of rain, with 64 mm in total over the month.
Is Valongo (Centro) 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 Valongo (Centro) in September?
About 12 h 32 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