Climate and monthly weather forecastAveiro, Portugal
Climate and monthly weather forecast
The climate of Aveiro
Aveiro, on the west coast of Portugal, is designated by the Köppen climate classification as Csb; this is known as a Mediterranean climate with a warm summer. As befits a Mediterranean climate, Aveiro generally experiences pleasant weather throughout the year. After studying the climatological data averages, it becomes evident that weather patterns fluctuate throughout the year.Temperature patterns throughout the year fluctuate from a low of 7.6°C (45.7°F) in February, to a high of 25.4°C (77.7°F) in August. During the summer period, from June to September, the temperatures rise to 20°C (68°F) and above, marking the warmest stretch of the year. The cooler months occur from December to February with the lows falling to between 7.8°C (46°F) to 8.6°C (47.5°F).
Precipitation levels too have a distinct pattern, with the driest period from June to August, evidenced by rainfall of no more than 7mm (0.28") to 23mm (0.91"). The month with the least rainfall is July, followed by August and then June, each receiving an average of 6mm (0.24"), 7mm (0.28"), and 22mm (0.87") respectively. On the other hand, the month of November receives the highest level of rainfall, with a recorded 94mm (3.7"). The duration of daylight in Aveiro varies from a low of 9.3 hours in December to a peak of 15 hours in June.
The best time to visit Aveiro
For tourists seeking the ideal time to visit Aveiro, the period from June to August stands out due to a combination of favorable weather conditions. During these months, temperatures typically peak at 20.8°C (69.4°F) to 25.4°C (77.7°F), providing warm and comfortable conditions ideal for outdoor activities and sightseeing. Coupled with minimum rainfall, measuring a meager 6mm (0.24") to 23mm (0.91"), the period promises minimal disruption to outdoor plans. Furthermore, these summer months present an average UV index of 5, indicating moderate exposure, thereby enabling tourists to enjoy the summer sun with basic protection.The worst time to visit Aveiro
On the flip side, the span from November to February may prove less ideal for visiting Aveiro. During this period, temperatures drop to a range of 14.3°C (57.7°F) to 15.8°C (60.4°F), and the cooler climate may not suit all travelers. Particularly November experiences the highest precipitation of the year, recording an average rainfall of 94mm (3.7"), potentially causing disruptions to outdoor activities.Spring weather in Aveiro
Come spring, Aveiro experiences a gradual warming trend from March to May with temperatures ranging from 15.9°C (60.6°F) to 20.8°C (69.4°F). The increased temperature coincides with a reduction in relative humidity, from 76% in March to 73% in May, contributing to the overall comfort of the season. On an average, the amount of sunshine received extends up to 10.2 hours per day in May.Summer weather in Aveiro
Aveiro reaches the peak of its warmth in summer, from June to August. During this time, temperatures average from 22.4°C (72.3°F) to a high of 25.4°C (77.7°F). The summer months experience the least amount of rainfall, between 6mm (0.24") to 23mm (0.91") compared to other seasons. Additionally, days are extended with daylight lasting for up to 14.7 hours in July, allowing more time to explore the town.Autumn weather in Aveiro
The autumn season brings a dip in temperatures, with averages decreasing from 24.5°C (76.1°F) in September to 15.8°C (60.4°F) in November. Rainfall also makes a return, with September reporting 23mm (0.91"), escalating to a high of 94mm (3.7") by November. Yet, there is ample sunshine available, with an average of 6.9 hours per day towards the end of the season in November.Winter weather in Aveiro
In winter, Aveiro experiences its coldest temperatures ranging from 14.3°C (57.7°F) in December to 13.3°C (55.9°F) in January. Albeit chilly, the winter weather is relatively mild compared to more northern regions. Rainfall is significantly higher during this season, with December marking precipitation of 84mm (3.31"), albeit lesser than November's high. The winter daylight hours range from 9.3 to 9.7 hours, the shortest throughout the year.Weather in January
A noticeable shift in weather characteristics signifies the arrival of January in Aveiro, Portugal. Cold temperatures prevail, adding a touch to the city's charm. Respective high and low temperatures of 13.3°C (55.9°F) and 7.8°C (46°F) give January one of the coldest weather of the year, deterring the unsuitable conditions of the frigid months. Weather in January »Weather in February
As February rolls around, changes in Aveiro's weather pattern become more evident albeit with slight alterations. The decline in cloud cover percentage paves the way for an increase in sunlight hours. Relative to the preceding period, February has less rainfall at 56mm (2.2"), correlating well with a reduced number of rainy days - a trend that will stretch to subsequent months. Weather in February »Weather in March
March showcases an interesting shift in Aveiro's weather profile. Towards the end of winter, temperatures start to show an upward trend. Temperatures often climb to 15.9°C (60.6°F), a clear indication that winter is yielding to spring. Weather in March »Weather in April
April announces the arrival of spring in Aveiro with clear weather changes. Variations in weather components such as humidity, sunshine hours, and cloud cover become more pronounced. However, the major telltale sign of spring in Aveiro is the average high temperature, which rises to 17.7°C (63.9°F). Weather in April »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"). Weather in May »Weather in June
June in Aveiro represents the onset of the summer season with its own definitive weather features. The most significant of these features is warmer temperatures, peaking to the year's high of 22.4°C (72.3°F), providing an excellent opportunity to hit the beach. Weather in June »Weather in July
July in Aveiro brings the hottest weather of the year on average. A somewhat constant weather pattern prevails with peak temperatures soaring to 24.5°C (76.1°F). As the summer season reaches its zenith, the city revels in an exceptional balance of warmth and daylight. Weather in July »Weather in August
August in Aveiro greets locals and tourists with consistent warm summer temperatures. There is a negligible drop in daily high temperatures from July, providing little relief from the blazing summer. Possessing the year's highest recorded temperature of 25.4°C (77.7°F), August's heat becomes more palpable than the preceding months. Weather in August »Weather in September
September carries forward the warmth of August into the initial phase of autumn in Aveiro. Average temperatures see a slight fall from the summer highs, with the weather remaining comfortably warm. Daily sunshine hours decrease from its summer peak, marking the slow transition to shorter days. Weather in September »Weather in October
October is a showcase of transitional weather in Aveiro as the heart of autumn sets in. Changes in weather characteristics become more prominent, with noticeable shifts in temperature and sunlight hours. Though rainfall does pick up during this month, the recorded increase from 23mm (0.91") to 79mm (3.11") doesn’t diminish the city's scenic beauty. Weather in October »Weather in November
November symbolizes the tail end of autumn and welcomes the early signs of winter in Aveiro. There is a marked plummet in temperatures, and the city becomes noticeably cooler. The harsher weather shifts aren’t unjustified - the recorded high average temperature drops by approximately 6°C (42.8°F) from October. Weather in November »Weather in December
The arrival of December in Aveiro marks the onset of the winter season. An evident drop in temperature takes place as the city gears up for the harshest part of the year. The weak winter sun plays a feeble role as temperatures fall to a low of 8.6°C (47.5°F), making December one of the significantly cold months. Weather in December »Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the coldest month of the year in Aveiro, registering average temperatures as high as 13.3°C (55.9°F) and as low as 7.8°C (46°F).
With an average relative humidity of 81%, January is the most humid month in Aveiro.
Throughout the year, in Aveiro, there are 125.4 rainfall days, and 619mm (24.37") of precipitation is accumulated.
The month with the least sunshine in Aveiro, Portugal, is January, with an average of 5.2h of sunshine.
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Aveiro.
The months with the highest UV index in Aveiro are May through September, with an average maximum UV index of 5.
The month with the longest days in Aveiro is June, with an average of 15h and 0min of daylight.
The month with the least rainfall is July, when the rain falls for 4.5 days and typically collects 6mm (0.24") of precipitation.
July has the most sunshine of the year, with an average of 11.3h of sunshine.
Aveiro's August weather, marked by an average high temperature of 25.4°C (77.7°F) and an average low temperature of 15.9°C (60.6°F), is the warmest in the year.
September is the least humid month, with an average relative humidity of 70%.
On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, and the time zone changes from WEST to WET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 01:00, and the time zone reverts from WET to WEST.
November is the month with the most rainfall in Aveiro. Rain falls for 14.9 days and accumulates 94mm (3.7") of precipitation.
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Aveiro, Portugal
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).
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
Aveiro, Portugal
- Average pressure in January:
1022mbar - Average pressure in February:
1020mbar - Average pressure in March:
1017.6mbar - Average pressure in April:
1015.3mbar - Average pressure in May:
1016.4mbar - Average pressure in June:
1017mbar
- Average pressure in July:
1016.8mbar - Average pressure in August:
1016.8mbar - Average pressure in September:
1017.1mbar - Average pressure in October:
1016mbar - Average pressure in November:
1017.2mbar - Average pressure in December:
1022.6mbar
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
Aveiro, Portugal
- Average wind speed in January:
12.3km/h - Average wind speed in February:
12.9km/h - Average wind speed in March:
12.5km/h - Average wind speed in April:
11.3km/h - Average wind speed in May:
11.7km/h - Average wind speed in June:
11.4km/h
- Average wind speed in July:
11.3km/h - Average wind speed in August:
11km/h - Average wind speed in September:
9.8km/h - Average wind speed in October:
10.9km/h - Average wind speed in November:
12.5km/h - Average wind speed in December:
12km/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
Aveiro, Portugal
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (70%).
Average rainfall
Aveiro, Portugal
The wettest month (with the highest rainfall) is November (94mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days
Aveiro, Portugal
- Average rainfall days in January:
14.5 days - Average rainfall days in February:
11.5 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
10.6 days - Average rainfall days in June:
8.1 days
- Average rainfall days in July:
4.5 days - Average rainfall days in August:
3.3 days - Average rainfall days in September:
5.8 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
14.9 days - Average rainfall days in December:
12.1 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 / Average sunshine
Aveiro, Portugal
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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 January:
5h and 12min - Average sunshine in February:
6h and 54min - Average sunshine in March:
7h and 36min - Average sunshine in April:
8h and 42min - Average sunshine in May:
10h and 12min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
11h and 18min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 54min - Average sunshine in November:
5h and 30min - Average sunshine in December:
5h and 42min
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
Aveiro, Portugal
- Average sunshine days in January:
15 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
15 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
18.8 days - Average sunshine days in June:
20.3 days
- Average sunshine days in July:
24.8 days - Average sunshine days in August:
25.8 days - Average sunshine days in September:
22.7 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
12.9 days - Average sunshine days in December:
17.8 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
Aveiro, Portugal
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
Aveiro, Portugal
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
Aveiro, Portugal
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).
