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With daytime temperatures of 22°C (72°F) and nighttime lows of 15°C (59°F), May in Quarteira brings pleasant temperatures during the day. The excellent weather makes it an appealing time to visit.
If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Quarteira.
Pick a month to see the average temperature, rainfall and sunshine in Quarteira - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Quarteira typically rise from around 21°C (70°F) at the start of May to approximately 24°C (75°F) by the end. Nights are pleasant, with lows typically ranging from 13°C (55°F) to 17°C (63°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 Quarteira spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Quarteira from 1976 through 2026.
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).
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers. With water temperatures around 17°C (63°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Quarteira climate overview or explore weather in Portugal.
Where to go in May - average daytime high across popular destinations.
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