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Quarteira in September sees high daytime temperatures of 26°C (79°F) and nighttime lows of 19°C (66°F). Low rainfall is typical, with around 23 mm (0.9 in) for the month.
If you favor pleasant temperatures and minimal rainfall, September 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 stay consistent throughout September, with daily highs averaging around 26°C (79°F). Nights are pleasant, with lows typically ranging from 17°C (63°F) to 20°C (68°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.
Based on 50 years of weather observations in Quarteira between 1976 and 2026, these are the recorded extremes.
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in September →
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).
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Some rain is possible, so pack something to handle light showers. The water temperature sits at about 20°C (68°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. 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.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Quarteira climate overview or explore weather in Portugal.
Where to go in September - average daytime high across popular destinations.
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