Quarteira Weather in September
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.
Rainfall in Quarteira in September
Typically around 2 days of rainfall are expected, averaging 23 mm (0.9 in) for the month. The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Quarteira in September
The perfect temperature in Quarteira in September makes it a solid month to visit, with 26°C (79°F) during the day and 19°C (66°F) at night. September is part of the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 19°C (66°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Quarteira in September
Enjoy a sunny month with about 278 hours of sunshine, the clear skies make Quarteira even more beautiful.
Wind Speed in Quarteira in September
September has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.
Average water temperature in September
The water sits at 20°C (68°F), which is a nice temperature for swimming. Not too cold, not too warm — most visitors are happy to spend time in the water.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Quarteira.
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 Quarteira's climate page.
Quarteira Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
26°C (79°F)
Water Temperature
20°C (68°F) *
Chance of Rain
8%
Precipitation
23 mm (0.9 in)
Rainy days
2 days
Humidity
65% *
Windspeed
3 m/s (6 knots) *
Sunshine
278 hours *
Percentage Sunshine
76% *
Daily Historical Temperatures
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).
Average temperatures in September
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 September
Historical weather for Quarteira in September
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.
Quarteira historical weather extremes in September
Based on 49 years of weather observations in Quarteira between 1976 and 2025, these are the recorded extremes.
- The warmest day in September was on September 27, 1983, with a maximum of 37°C (99°F).
- On September 22, 1994, Quarteira saw its coldest September day with temperatures maxing out at 19°C (66°F).
- The coldest night in September in Quarteira was on September 23, 1994, with a minimum of 10°C (50°F).
Best Places in Portugal in September
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
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tolerable
unpleasant
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What to Wear in Quarteira in September
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.What To Do in Quarteira in September
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 Quarteira's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Quarteira climate overview or explore weather in Portugal.
