Month guide · Caxias, Portugal
Caxias in August: weather and what to expect
In August, Caxias averages highs of 25°C and lows of 19°C, with about 1 rainy day and 5 mm of rain. Highs are 1°C warmer than in July and 1°C warmer than in September. Our rules rate it good for walking and cycling. Crowds in the Lisbon area are at their peak.
Is August a good time to visit?
Good for
- Walking and cyclingHighs of 25°C with about 1 rainy day
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 4.
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 Caxias |
|---|---|---|---|
| Coruche, Oeste e Vale do Tejo | 32°C | 2 | 71 km |
| Marinhais, Oeste e Vale do Tejo | 31°C | 2 | 63 km |
| Bemfica, Oeste e Vale do Tejo | 31°C | 2 | 71 km |
| Benavente, Oeste e Vale do Tejo | 31°C | 2 | 51 km |
| Salvaterra de Magos, Oeste e Vale do Tejo | 31°C | 2 | 55 km |
The nearest towns with a warmer August. Distances are in a straight line.
How August is changing
Town-level · ERA5-LandAugust highs are 0.4°C warmer than in 1991-2000, and August rainfall is down about 75% (2016-2025 against 1991-2000). Days above 25°C in August went from 10 to 11 a year on average.
Questions about Caxias in August
Is August a good time to visit Caxias?
Our rules rate August good for walking and cycling (highs of 25°C with about 1 rainy day).
How warm is Caxias in August?
Average highs are 25°C and lows 19°C. July averages 24°C and September 23°C.
Does it rain much in Caxias in August?
About 1 day has at least 1 mm of rain, with 5 mm in total over the month.
Is Caxias busy in August?
In August 2025, nights booked through online platforms in the Lisbon area 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 Caxias in August?
About 13 h 43 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