Month guide · Lagos, Portugal
Lagos in August: weather and what to expect
In August, Lagos averages highs of 29°C and lows of 19°C, with about 1 rainy day and 3 mm of rain. Highs are about the same as in July and 2°C warmer than in September. Our rules rate it good for beach days. Crowds in the Algarve are at their peak.
Is August a good time to visit?
Good for
- Beach daysHighs of 28°C and 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 35°C happens in roughly 1 August in 5.
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 Lagos |
|---|---|---|---|
| Alcantarilha, Algarve | 31°C | 1 | 29 km |
| Pêra, Algarve | 31°C | 1 | 30 km |
| Armação de Pêra, Algarve | 31°C | 1 | 28 km |
| Silves, Algarve | 31°C | 1 | 23 km |
| Porches, Algarve | 31°C | 1 | 24 km |
The nearest towns with a warmer August. Distances are in a straight line.
How August is changing
Town-level · ERA5-LandAugust highs are 1.6°C warmer than in 1991-2000 (2016-2025 against 1991-2000). Days above 30°C in August went from 6.9 to 11 a year on average.
Questions about Lagos in August
Is August a good time to visit Lagos?
Our rules rate August good for beach days (highs of 28°C and about 1 rainy day).
How warm is Lagos in August?
Average highs are 29°C and lows 19°C. July averages 28°C and September 26°C.
Does it rain much in Lagos in August?
About 1 day has at least 1 mm of rain, with 3 mm in total over the month.
Is Lagos busy in August?
In August 2025, nights booked through online platforms in the Algarve 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 Lagos in August?
About 13 h 38 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