Aveiro Weather in September
During September, Aveiro experiences high daytime temperatures of 25°C (77°F) and cooler nights around 16°C (61°F). As part of the summer season, some rainfall is to be expected.
Rainfall in Aveiro in September
Looking at the last 30 years, the data shows about 9 days with rain, averaging 59 mm (2.3 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Aveiro in September
September tends to be one of the perfect months in Aveiro, with 25°C (77°F) in the afternoon and 16°C (61°F) overnight. September marks the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 16°C (61°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.
Sunshine in Aveiro in September
Expect sunny days throughout the month, with an estimated 230 hours of sunshine. This makes it a pleasant time to visit Aveiro.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
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 Aveiro's climate page.
Aveiro Temperature in September
Min Temperature
16°C (61°F)
Max Temperature
25°C (77°F)
Chance of Rain
28%
Precipitation
59 mm (2.3 in)
Rainy days
9 days
Humidity
68% *
Sunshine
230 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2024)
Based on our historical records, temperatures in Aveiro typically stay consistent throughout September, with daily highs averaging around 25°C (77°F). Nights are pleasant, with lows typically ranging from 13°C (55°F) to 15°C (59°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2024)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Aveiro in September
Browse day-by-day weather records for Aveiro spanning 50 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Aveiro historical weather extremes in September
According to our 48 years of weather records for Aveiro, the following extremes were recorded between 1976 and 2024.
- Aveiro recorded its highest September temperature of 37°C (99°F) on September 6, 1988.
- The lowest daytime temperature in September was 16°C (61°F), recorded on September 26, 1992.
- Nighttime temperatures dropped to 7°C (45°F) on September 17, 2017, marking the coldest September night on record.
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
pleasant
tolerable
unpleasant
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What to Wear in Aveiro in September
Pleasant temperatures in September 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. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Aveiro 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 Aveiro's climate page.
Temperature Rainfall Sunshine Humidity
See the full Aveiro climate overview or explore weather in Portugal.
