Month guide · Cartaxo, Portugal
Cartaxo in August: weather and what to expect
August is the warmest month of the year in Cartaxo. August highs in Cartaxo are now 1.1°C warmer than in 1991-2000. In August, Cartaxo averages highs of 30°C and lows of 18°C, with about 2 rainy days and 8 mm of rain. Crowds in Oeste e Vale do Tejo are at their peak.
Is August a good time to visit?
Good for
No verdicts for Cartaxo in August yet. They only use climate values that are precise enough to judge with.
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. Nights below 15°C in about 1 in 2.
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 Cartaxo |
|---|---|---|---|
| Marinhais, Oeste e Vale do Tejo | 31°C | 2 | 15 km |
| Almeirim, Oeste e Vale do Tejo | 31°C | 2 | 15 km |
| Bemfica, Oeste e Vale do Tejo | 31°C | 2 | 9 km |
| Salvaterra de Magos, Oeste e Vale do Tejo | 31°C | 2 | 15 km |
| Vale de Santarém, Oeste e Vale do Tejo | 30°C | 2 | 6 km |
The nearest towns with a warmer August. Distances are in a straight line.
How August is changing
Town-level · ERA5-LandAugust highs are 1.1°C warmer than in 1991-2000, and August rainfall is down about 70% (2016-2025 against 1991-2000). Days above 30°C in August went from 10 to 14 a year on average.
Questions about Cartaxo in August
How warm is Cartaxo in August?
Average highs are 30°C and lows 18°C. July averages 29°C and September 27°C.
Does it rain much in Cartaxo in August?
About 2 days have at least 1 mm of rain, with 8 mm in total over the month.
Is Cartaxo 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 Cartaxo in August?
About 13 h 45 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