Month guide · Alcobaça, Portugal
Alcobaça in August: weather and what to expect
August is the warmest month of the year in Alcobaça. The sea is still cool, around 18°C. In August, Alcobaça averages highs of 25°C and lows of 17°C, with about 3 rainy days and 12 mm of rain. Our rules rate it good for beach days, walking and cycling. Crowds in Oeste e Vale do Tejo are at their peak.
Is August a good time to visit?
Good for
- Beach daysHighs of 25°C and about 3 rainy days
- Walking and cyclingHighs of 25°C with about 3 rainy days
Not ideal for
Nothing stands out as a weaker fit.
Daily highs through August
Town-level · ERA5-Land 1991-2020Highs stay about the same through the month. A day above 30°C happens in roughly 1 August in 2; nights below 15°C in about 1 in 3.
August in detail
Town-level · ERA5-LandCrowds, holidays and daylight
Public holidays in August 2027
- 15 Aug Assumption Day
Local (municipal) holidays are not included.
Warmer in August
Where is warm in August →| Place | High | Rain days | From Alcobaça |
|---|---|---|---|
| Azinhaga (Golegã), Oeste e Vale do Tejo | 31°C | 2 | 45 km |
| Riachos, Oeste e Vale do Tejo | 31°C | 3 | 42 km |
| São Vicente do Paul, Oeste e Vale do Tejo | 31°C | 2 | 38 km |
| Entroncamento, Oeste e Vale do Tejo | 31°C | 2 | 45 km |
| Torres Novas, Oeste e Vale do Tejo | 30°C | 2 | 38 km |
The nearest towns with a warmer August. Distances are in a straight line.
How August is changing
Town-level · ERA5-LandAugust highs are 0.5°C warmer than in 1991-2000, and August rainfall is down about 70% (2016-2025 against 1991-2000). Days above 25°C in August went from 12 to 13 a year on average.
Questions about Alcobaça in August
Is August a good time to visit Alcobaça?
Our rules rate August good for beach days (highs of 25°C and about 3 rainy days); walking and cycling (highs of 25°C with about 3 rainy days).
How warm is Alcobaça in August?
Average highs are 25°C and lows 17°C. July averages 24°C and September 24°C.
Does it rain much in Alcobaça in August?
About 3 days have at least 1 mm of rain, with 12 mm in total over the month.
Is Alcobaça busy in August?
In August 2025, nights booked through online platforms in Oeste e Vale do Tejo were the busiest month of the year, which we count as peak. The figure is for the whole region and leaves out hotels.
How long are the days in Alcobaça in August?
About 13 h 46 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