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In Costa da Caparica, May brings pleasant daytime temperatures around 20°C (68°F), with nights cooling to 15°C (59°F). Some rainfall is to be expected.
If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Costa da Caparica.
Pick a month to see the average temperature, rainfall and sunshine in Costa da Caparica - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Costa da Caparica typically stay consistent throughout May, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 15°C (59°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
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.
Based on weather observations in Costa da Caparica between 1976 and 2026, these are the recorded extremes during May.
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
For Costa da Caparica in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Costa da Caparica climate overview or explore weather in Portugal.
Where to go in May - average daytime high across popular destinations.
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