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Aveiro Weather in May
Aveiro in May averages 22°C (72°F) during the day and 13°C (55°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Aveiro in May
You can expect rain on roughly 12 days based on historical data, averaging 88 mm (3.5 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Aveiro in May
May is one of the better months to visit Aveiro. Expect 22°C (72°F) during the day and 13°C (55°F) at night. Conditions are often most pleasant around the middle of the day. With lows of 13°C (55°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Aveiro in May
The days are predominantly sunny, with an estimated total of around 251 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Aveiro.
Aveiro Temperature in May
Min Temperature
13°C (55°F)
Max Temperature
22°C (72°F)
Chance of Rain
41%
Precipitation
88 mm (3.5 in)
Rainy days
12 days
Humidity
71% *
Sunshine
251 hours *
Percentage Sunshine
*
* Data from: Coimbra, Portugal (52 KM, 32 Miles).
Aveiro Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Aveiro - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Aveiro typically stay consistent throughout May, with daily highs averaging around 22°C (72°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 13°C (55°F).
Average temperatures in May
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 May
Historical weather records for Aveiro in May
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 May
Our historical data for Aveiro spans 1976 to 2025, revealing these weather extremes.
- The hottest May day on record in Aveiro reached 33°C (91°F) (May 14, 1979).
- The lowest daytime temperature in May was 10°C (50°F), recorded on May 2, 2001.
- The coldest night in May in Aveiro was on May 5, 1982, with a minimum of 3°C (37°F).
- Peak precipitation in May occurred on May 4, 2015, when 38 mm (1.5 in) of precipitation was measured.
Best Places in Portugal in 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
pleasant
tolerable
unpleasant
poor
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).
What to Wear in Aveiro in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Aveiro in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Aveiro 3-Day Forecast
More climate data for Aveiro
Temperature Rainfall Sunshine Humidity
See the full Aveiro climate overview or explore weather in Portugal.
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