Costa da Caparica Weather in August
August in Costa da Caparica averages 25°C (77°F) during the day and 18°C (64°F) at night. With only 5.1 mm (0.2 in) of rainfall expected on average, it's a largely dry month.
Rainfall in Costa da Caparica in August
You can expect rain on around 2 days based on historical patterns, with 5.1 mm (0.2 in) average for the month. If rain does fall, it tends to be very light and barely worth getting out an umbrella for.
Temperature in Costa da Caparica in August
If you're visiting Costa da Caparica in August, expect excellent temperatures with highs of 25°C (77°F) and overnight lows of 18°C (64°F). Summer occurs in August. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 18°C (64°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. On average, it has the peak temperatures of the year.
Sunshine in Costa da Caparica in August
The month enjoys around 350 hours of sunshine, creating mostly sunny days with good weather conditions.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for Costa da Caparica.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Costa da Caparica's climate page.
Costa da Caparica Temperature in August
Min Temperature
18°C (64°F)
Max Temperature
25°C (77°F)
Chance of Rain
6%
Precipitation
5.1 mm (0.2 in)
Rainy days
2 days
Sunshine
350 hours *
Percentage Sunshine
82% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Costa da Caparica typically stay consistent throughout August, with daily highs averaging around 25°C (77°F). Nights are pleasant, with lows around 18°C (64°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Costa da Caparica in August
Browse day-by-day weather records for Costa da Caparica spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Costa da Caparica historical weather extremes in August
Our historical data for Costa da Caparica spans 1976 to 2025, revealing these weather extremes.
- On August 4, 2018, temperatures climbed to 43°C (109°F), marking the warmest August day on record.
- The coldest August day was on August 26, 1993, with a maximum of 20°C (68°F).
- Nighttime temperatures dropped to 11°C (52°F) on August 13, 1983, marking the coldest August night on record.
Best Places in Portugal in August
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in August →
perfect weather
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What to Wear in Costa da Caparica in August
Comfortable temperatures call for an easy wardrobe in August. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Dry conditions mean you won't need to worry about rain protection. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Costa da Caparica in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Costa da Caparica's climate page.
See the full Costa da Caparica climate overview or explore weather in Portugal.
