AI-generatedAveiro at a glance
- Best time
- Jun – Sep
- Warmest month
- Aug · 27°
- Warmest sea
- Aug · 18.2°
- Sunshine a year
- 2,470 h
- Rain a year
- 1,050 mm
- Climate
- Mediterranean
- Time zone
- UTC+0 / UTC+1
- Elevation
- 19 m
Climate in Aveiro
Aveiro has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 27 °C, while January is the coolest at 14 °C. With around 2,470 hours of sunshine a year, Aveiro is sunny; July is the sunniest month with 10.1 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: June – September
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 14°
- Midday, 13:00: about 21°
- Afternoon, 16:00: about 21°
- Evening, 20:00: about 18°
- Night, 23:00: about 16°
07:4418:56
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:27–08:21 · evening 18:19–19:13
- Blue hour
- Morning 07:17–07:27 · evening 19:13–19:24
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Aveiro in October?
In October, Aveiro is warm: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 17.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 152 mm in total. All in all, October is not an ideal month for a holiday in Aveiro.
More details for October
- Daylight
- 11 h 12 min07:44 – 18:56
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 55 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC+1Europe/Lisbon
How the score comes together
- Temperatureweight 35 %40 %
- Seaweight 25 %7 %
- Sunshineweight 20 %40 %
- Few rainy daysweight 20 %39 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Sea temperature in Aveiro
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 16.5 – 18.8 °C
Swimming season: Never above 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Aveiro ranges from 13.8 °C in February to 18.2 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
From December to January the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 17.4 and 19.2 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 14.2° | 13.4° | 15.2° | cold |
| FebruaryFeb | 13.8° | 12.9° | 14.4° | cold |
| MarchMar | 14.0° | 13.1° | 14.8° | cold |
| AprilApr | 15.0° | 13.8° | 16.3° | cold |
| MayMay | 16.2° | 15.0° | 17.3° | cold |
| JuneJun | 17.5° | 16.6° | 18.5° | fresh |
| JulyJul | 17.9° | 17.1° | 18.7° | fresh |
| AugustAug | 18.2° | 17.4° | 19.2° | fresh |
| SeptemberSep | 18.1° | 16.9° | 19.2° | fresh |
| OctoberOct | 17.5° | 16.5° | 18.8° | fresh |
| NovemberNov | 16.3° | 14.8° | 17.6° | cold |
| DecemberDec | 14.9° | 13.9° | 16.0° | cold |
Sunshine hours in Aveiro
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.4 of 11.2 hours of daylight in Aveiro, 48 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Aveiro
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 4 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 10).
Minutes until sunburn in October
- Very fair skin
- about 35 min
- Fair skin
- about 45 min
- Light brown skin
- about 60 min
- Olive skin
- about 75 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Aveiro: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Aveiro has about 13 rainy days with 152 mm of rain in total.
Wind and clouds in Aveiro
How breezy and how cloudy Aveiro is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Aveiro typically peaks at 21 km/h during the day: Beaufort 4, moderate breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it gets there all year.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 55 % of the sky over Aveiro: variable cloud, with about 5.4 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Aveiro
How often the day gets hot in Aveiro (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Aveiro has about 1 hot days, with an average daytime high of 21 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Aveiro
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
CoolOctober: nights around 14°. A duvet at night and a jumper for the evening. Muggy on about 1 days (dew point 18 °C or more).
The coolest nights are in January (7°), the warmest in August (17°). Nights are pleasant for sleeping (15 to 20 °C) from June to September. Nights fall below 8 °C on average from January to February, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 11 | 14° | 7° | 14.2° | 4.0 h | 12 | 134 |
| FebruaryFeb | 19 | 15° | 7° | 13.8° | 5.1 h | 9 | 86 |
| MarchMar | 20 | 17° | 9° | 14.0° | 6.1 h | 11 | 105 |
| AprilApr | 24 | 19° | 10° | 15.0° | 7.2 h | 11 | 101 |
| MayMay | 43 | 21° | 13° | 16.2° | 8.3 h | 9 | 68 |
| JuneJun | 71 | 24° | 15° | 17.5° | 9.3 h | 6 | 30 |
| JulyJul | 78 | 27° | 17° | 17.9° | 10.1 h | 3 | 12 |
| AugustAug | 79 | 27° | 17° | 18.2° | 9.7 h | 3 | 14 |
| SeptemberSep | 73 | 25° | 16° | 18.1° | 8.0 h | 6 | 54 |
| OctoberOct | 32 | 21° | 14° | 17.5° | 5.4 h | 13 | 152 |
| NovemberNov | 11 | 17° | 10° | 16.3° | 4.1 h | 13 | 148 |
| DecemberDec | 10 | 14° | 8° | 14.9° | 3.6 h | 13 | 146 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
40.65° N, 8.65° W · 19 m · Europe/Lisbon
Best time to visit Aveiro
The best time to visit Aveiro is from June to September. The sea stays too cool for a classic beach holiday: even in August it only reaches 18.2 °C. For sightseeing, day trips and hiking, conditions are most comfortable from March to September. Rain is most frequent from October to January; the wettest month is October with 152 mm.
Aveiro through the seasons
How the weather changes over the seasons, with averages for each.
Aveiro in spring
Mar – May
Poor
- 17–21 °C by day
- Sea 15 °C
- 7 h of sun a day
- 32 rainy days in all
Aveiro in summer
Jun – Aug
Good
- 24–27 °C by day
- Sea 18 °C
- 10 h of sun a day
- 11 rainy days in all
Aveiro in autumn
Sep – Nov
Poor
- 17–25 °C by day
- Sea 17 °C
- 6 h of sun a day
- 31 rainy days in all
Aveiro in winter
Dec – Feb
Poor
- 14–15 °C by day
- Sea 14 °C
- 4 h of sun a day
- 34 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Aveiro for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Compare two months in Aveiro
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Aveiro: score 79 against 32. In August, days are 6 °C warmer than in October. The sea is 1 °C warmer in August. August has 10 fewer rainy days. The sun shines 4 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Weather score | 32 | 79better |
| Day high | 21° | 27° |
| Night low | 14° | 17° |
| Sea | 17.5° | 18.2° |
| Sunshine | 5.4 h | 9.7 hbetter |
| Rainy days | 13 | 3better |
| Rainfall | 152 mm | 14 mmbetter |
| Muggy days | 1better | 3 |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar – Sep
15–28 °C and not too much rain
Rainy months
Oct – Jan
12 or more rainy days
Aveiro month by month
The typical weather for every month at a glance.
11January14° · Sea 14° · 4 h
In January, Aveiro is cool: daytime highs average 14 °C, and nights cool down to about 7 °C. The sea averages 14.2 °C – swimming is only for the hardy. Expect around 4 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 134 mm in total. All in all, January is not an ideal month for a holiday in Aveiro.
Aveiro in January19February15° · Sea 14° · 5 h
In February, Aveiro is cool: daytime highs average 15 °C, and nights cool down to about 7 °C. The sea averages 13.8 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 86 mm in total. All in all, February is not an ideal month for a holiday in Aveiro.
Aveiro in February20March17° · Sea 14° · 6 h
In March, Aveiro is mild: daytime highs average 17 °C, and nights cool down to about 9 °C. The sea averages 14.0 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 105 mm in total. All in all, March is not an ideal month for a holiday in Aveiro.
Aveiro in March24April19° · Sea 15° · 7 h
In April, Aveiro is mild: daytime highs average 19 °C, and nights cool down to about 10 °C. The sea averages 15.0 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 101 mm in total. All in all, April is not an ideal month for a holiday in Aveiro.
Aveiro in April43May21° · Sea 16° · 8 h
In May, Aveiro is warm: daytime highs average 21 °C, and nights cool down to about 13 °C. The sea averages 16.2 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain is frequent, with about 9 rainy days and 68 mm in total. All in all, May is a so-so month for a holiday in Aveiro.
Aveiro in May71June24° · Sea 18° · 9 h
In June, Aveiro is warm: daytime highs average 24 °C, and nights cool down to about 15 °C. The sea averages 17.5 °C – bracing, so a wetsuit helps for longer swims. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 30 mm. All in all, June is a good month for a holiday in Aveiro.
Aveiro in June78July27° · Sea 18° · 10 h
In July, Aveiro is warm: daytime highs average 27 °C, and nights cool down to about 17 °C. The sea averages 17.9 °C – bracing, so a wetsuit helps for longer swims. With around 10 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 12 mm in total. On about 6 days the thermometer climbs to 30 °C or more. All in all, July is a good month for a holiday in Aveiro.
Aveiro in July79August27° · Sea 18° · 10 h
In August, Aveiro is hot: daytime highs average 27 °C, and nights cool down to about 17 °C. The sea averages 18.2 °C – bracing, so a wetsuit helps for longer swims. With around 10 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 14 mm in total. On about 7 days the thermometer climbs to 30 °C or more. All in all, August is a good month for a holiday in Aveiro.
Aveiro in August73September25° · Sea 18° · 8 h
In September, Aveiro is warm: daytime highs average 25 °C, and nights cool down to about 16 °C. The sea averages 18.1 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain falls on about 6 days, adding up to 54 mm. All in all, September is a good month for a holiday in Aveiro.
Aveiro in September32October21° · Sea 18° · 5 h
In October, Aveiro is warm: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 17.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 152 mm in total. All in all, October is not an ideal month for a holiday in Aveiro.
Aveiro in October11November17° · Sea 16° · 4 h
In November, Aveiro is mild: daytime highs average 17 °C, and nights cool down to about 10 °C. The sea averages 16.3 °C – swimming is only for the hardy. Expect around 4 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 148 mm in total. All in all, November is not an ideal month for a holiday in Aveiro.
Aveiro in November10December14° · Sea 15° · 4 h
In December, Aveiro is cool: daytime highs average 14 °C, and nights cool down to about 8 °C. The sea averages 14.9 °C – swimming is only for the hardy. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 13 rainy days and 146 mm in total. All in all, December is not an ideal month for a holiday in Aveiro.
Aveiro in DecemberAveiro compared
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Aveiro vs. Coimbra
In October Coimbra has the better holiday weather (score 49 vs. 32). During the day Coimbra is 1 °C warmer than Aveiro. Coimbra gets one more hour of sunshine a day.
| in October | Aveiro | Coimbra |
|---|---|---|
| Holiday score | 32 | 49 |
| Daytime high | 21° | 22° |
| Sea | 18° | – |
| Sunshine | 5 h | 6 h |
| Rainy days | 13 | 12 |
| Best time | Jun – Sep | May – Sep |
Through the year
Portugal in October: the best places
In October, Aveiro ranks 22 of 24 destinations in this country.
- Sintra20°80
- 2Amadora21°19°80
- 3Lisbon21°19°80
- 4Coimbra22°74
- 5Fátima21°74
- 6Funchal21°23°74
- 7Porto21°17°69
- 8Guimarães20°68
- 22AveiroThis page21°18°32
Planning a trip to Aveiro
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Aveiro in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Aveiro has its best school-holiday weather during the summer holidays (score 79) and its weakest during the Christmas holidays (score 11).
- 23
Easter holidays
Mar – Apr
Poor
- 18 °C by day
- Sea 15 °C
- 6.9 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 49
May half-term
May – Jun
Fair
- 22 °C by day
- Sea 16 °C
- 8.5 h of sun a day
- 9 rainy days a month
Good for: Sightseeing & walks
- 79
Summer holidays
Jul – Aug
GoodBest holidays
- 27 °C by day
- Sea 18 °C
- 9.8 h of sun a day
- 3 rainy days a month
Good for: Sightseeing & walks
- 32
October half-term
Oct
Poor
- 21 °C by day
- Sea 18 °C
- 5.4 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 11
Christmas holidays
Dec – Jan
Poor
- 14 °C by day
- Sea 15 °C
- 3.8 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 2 h 10 min
- Distance
- 1,360 km
- Time zone
- UTC+1
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Aveiro
When is the best time to visit Aveiro?
The best time to visit Aveiro is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Aveiro?
The sea temperature in Aveiro ranges from 13.8 °C in February to 18.2 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Aveiro in October?
Only if you don't mind cold water: in October the sea averages just 17.5 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Aveiro?
August is the warmest month, with average highs of 27 °C and nights around 17 °C. January is the coolest month at 14 °C.
When does it rain most in Aveiro?
Rain is most frequent from October to January; the wettest month is October with 152 mm. The driest month is July with 12 mm.
How many hours of sunshine does Aveiro get?
Aveiro gets around 2,470 hours of sunshine a year. The sunniest month is July with 10.1 hours a day; in December there are 3.6 hours a day.
What time zone is Aveiro in?
Aveiro uses the time zone Europe/Lisbon: UTC+0 in January and UTC+1 in July.
How long is the flight from London to Aveiro?
A nonstop flight from London to Aveiro takes about 2 h 10 min, for a straight-line distance of about 1,360 km.
Which school holidays are best for Aveiro?
Aveiro has its best school-holiday weather during the summer holidays (score 79) and its weakest during the Christmas holidays (score 11). Holiday ratings (0–100): Easter holidays 23, May half-term 49, Summer holidays 79, October half-term 32, Christmas holidays 11.
Near Aveiro
Other destinations close by.
Places with a climate like Aveiro
Destinations whose weather through the year is closest to Aveiro's – good alternatives.