May weather forecastAveiro, Portugal
May
Weather in May
May brings a generally optimistic outlook to Aveiro’s weather, marking the novel start to the warm season. A gradual increase in temperature continues to modify the daily weather pattern in Aveiro. With the warming influence of the sun becoming more prominent, rainfall amounts decrease significantly to 37mm (1.46"). May guests longer sunshine hours, lasting up to 10.2 hours daily, enabling residents and visitors to plan outdoor activities more confidently. The entire city enjoys a pleasant reprieve from the frequent rains of the previous months, thanks to a reduced cloud cover percentage.Temperature
As May arrives, Aveiro's weather shows a minor increase in high-temperatures, edging from April's enjoyable 17.7°C (63.9°F) to an agreeable 20.8°C (69.4°F). In the month of May, the average temperature dips to a fresh 12.5°C (54.5°F) during the night.Humidity
In Aveiro, Portugal, the average relative humidity in May is 73%.Rainfall
In Aveiro, in May, during 10.6 rainfall days, 37mm (1.46") of precipitation is typically accumulated. In Aveiro, Portugal, during the entire year, the rain falls for 125.4 days and collects up to 619mm (24.37") of precipitation.Daylight
The average length of the day in May is 14h and 28min.On the first day of the month, sunrise is at 06:32 and sunset at 20:30. On the last day of May, sunrise is at 06:05 and sunset at 20:58 WEST.
Sunshine
In Aveiro, the average sunshine in May is 10.2h.UV index
The months with the highest UV index in Aveiro, Portugal, are May through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Aveiro, Portugal
- Average high temperature in May: 20.8°C
The warmest month (with the highest average high temperature) is August (25.4°C).
The month with the lowest average high temperature is January (13.3°C).
- Average low temperature in May: 12.5°C
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (7.6°C).
Average pressure in May
Aveiro, Portugal
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in May
Aveiro, Portugal
- Average wind speed in May: 11.7km/h
The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).
Average humidity in May
Aveiro, Portugal
- Average humidity in May: 73%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (70%).
Average rainfall in May
Aveiro, Portugal
- Average rainfall in May: 37mm
The wettest month (with the highest rainfall) is November (94mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in May
Aveiro, Portugal
- Average rainfall days in May: 10.6 days
The month with the highest number of rainy days is November (14.9 days).
The month with the least rainy days is August (3.3 days).
Average daylight in May /
Average sunshine in May
Aveiro, Portugal
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 10h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in May
Aveiro, Portugal
- Average sunshine days in May: 18.8 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is November (12.9 days).
Average UV index in May
Aveiro, Portugal
- Average UV index in May: 5
The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Aveiro, Portugal
- Average cloud cover in May: 27
The month with the most cloud cover is January (Cloud cover 43).
The months with the least cloud cover are July, August and September (Cloud cover 19).
Average visibility in May
Aveiro, Portugal
- Average visibility in May: 9km
The months with the highest visibility are February, June and December (10km).
The months with the lowest visibility are January, March, April, May, July, August, September, October and November (9km).
