AI-generatedViseu at a glance
- Best time
- May – Sep
- Warmest month
- Aug · 30°
- Sunshine a year
- 2,380 h
- Rain a year
- 1,243 mm
- Climate
- Mediterranean
- Time zone
- UTC+0 / UTC+1
- Elevation
- 469 m
Climate in Viseu
Viseu has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 30 °C, while January is the coolest at 12 °C. With around 2,380 hours of sunshine a year, Viseu is sunny; July is the sunniest month with 10.4 hours a day.
Holiday weather through the year
Best time to visit Viseu
The best time to visit Viseu is from May to September. For sightseeing, day trips and hiking, conditions are most comfortable in March, from May to June and in September. Rain is frequent in April and from October to December; the wettest month is October with 179 mm.
Viseu through the seasons
How the weather changes over the seasons, with averages for each.
Viseu in spring
Mar – May
Good
- 17–22 °C by day
- 6.7 h of sun a day
- 37 rainy days in all
Viseu in summer
Jun – Aug
Excellent
- 26–30 °C by day
- 9.8 h of sun a day
- 14 rainy days in all
Viseu in autumn
Sep – Nov
Good
- 15–26 °C by day
- 5.6 h of sun a day
- 32 rainy days in all
Viseu in winter
Dec – Feb
Fair
- 12–14 °C by day
- 3.9 h of sun a day
- 34 rainy days in all
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar, May – Jun, Sep
15–28 °C and not too much rain
Rainy months
Apr, Oct – Dec
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Viseu for you.
Your best months: May – June, September
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Good
Best time to visit: May – September
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 11°
- Midday, 13:00: about 20°
- Afternoon, 16:00: about 21°
- Evening, 20:00: about 16°
- Night, 23:00: about 14°
07:4118:53
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:24–08:18 · evening 18:16–19:10
- Blue hour
- Morning 07:14–07:24 · evening 19:10–19:21
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.
October in Viseu compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 23° at the start of the month to 18° at the end. The days get 1.3 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 23° | 18° |
| Night-time low | 12° | 8° |
| Daylight | 11.8 h | 10.6 h |
What is the weather like in Viseu in October?
In October, Viseu is mild: daytime highs average 21 °C, and nights cool down to about 10 °C. Expect around 5.3 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 179 mm in total. All in all, October is a good month for a holiday in Viseu.
More details for October
- Daylight
- 11 h 12 min07:41 – 18:53
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 59 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC+1offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %38 %
- Few rainy daysweight 30 %41 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Viseu
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Viseu: score 94 against 70. In June, days are 5 °C warmer than in October. June has 5 fewer rainy days. The sun shines 4 hours longer a day in June.
| Month | October | June |
|---|---|---|
| Holiday weather score | 70 | 94better |
| Daytime high | 21° | 26° |
| Night-time low | 10° | 13° |
| Sunshine | 5.3 h | 9.1 hbetter |
| Rainy days | 12 | 7better |
| Rainfall | 179 mm | 43 mmbetter |
Based on the climate averages 1996–2025.
Viseu month by month
The typical weather for every month at a glance.
34January12° · 3.6 h
In January, Viseu is cool: daytime highs average 12 °C, and nights cool down to about 3 °C. The sun is scarce, with only about 3.6 hours a day. Rain is frequent, with about 12 rainy days and 160 mm in total. All in all, January is not an ideal month for a holiday in Viseu.
Viseu in January53February14° · 4.9 h
In February, Viseu is cool: daytime highs average 14 °C, and nights cool down to about 3 °C. Expect around 4.9 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 102 mm in total. All in all, February is a so-so month for a holiday in Viseu.
Viseu in February66March17° · 5.8 h
In March, Viseu is mild: daytime highs average 17 °C, and nights cool down to about 5 °C. Expect around 5.8 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 128 mm in total. All in all, March is a good month for a holiday in Viseu.
Viseu in March72April19° · 6.6 h
In April, Viseu is mild: daytime highs average 19 °C, and nights cool down to about 7 °C. The sun shines for around 6.6 hours a day. Rain is frequent, with about 13 rainy days and 122 mm in total. All in all, April is a good month for a holiday in Viseu.
Viseu in April81May22° · 7.8 h
In May, Viseu is warm: daytime highs average 22 °C, and nights cool down to about 10 °C. The sun shines for around 7.8 hours a day. Rain is frequent, with about 11 rainy days and 86 mm in total. All in all, May is an excellent month for a holiday in Viseu.
Viseu in May94June26° · 9.1 h
In June, Viseu is warm: daytime highs average 26 °C, and nights cool down to about 13 °C. With around 9.1 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 43 mm. On about 8 days the thermometer climbs to 30 °C or more. All in all, June is an excellent month for a holiday in Viseu.
Viseu in June82July30° · 10.4 h
In July, Viseu is hot: daytime highs average 30 °C, and nights cool down to about 15 °C. With around 10.4 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 18 mm in total. On about 16 days the thermometer climbs to 30 °C or more. All in all, July is an excellent month for a holiday in Viseu.
Viseu in July80August30° · 10.0 h
In August, Viseu is hot: daytime highs average 30 °C, and nights cool down to about 15 °C. With around 10.0 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 22 mm in total. On about 16 days the thermometer climbs to 30 °C or more. All in all, August is an excellent month for a holiday in Viseu.
Viseu in August88September26° · 7.6 h
In September, Viseu is warm: daytime highs average 26 °C, and nights cool down to about 13 °C. The sun shines for around 7.6 hours a day. Rain falls on about 7 days, adding up to 70 mm. On about 6 days the thermometer climbs to 30 °C or more. All in all, September is an excellent month for a holiday in Viseu.
Viseu in September70October21° · 5.3 h
In October, Viseu is mild: daytime highs average 21 °C, and nights cool down to about 10 °C. Expect around 5.3 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 179 mm in total. All in all, October is a good month for a holiday in Viseu.
Viseu in October49November15° · 3.8 h
In November, Viseu is cool: daytime highs average 15 °C, and nights cool down to about 6 °C. The sun is scarce, with only about 3.8 hours a day. Rain is frequent, with about 12 rainy days and 155 mm in total. All in all, November is a so-so month for a holiday in Viseu.
Viseu in November34December12° · 3.2 h
In December, Viseu is cool: daytime highs average 12 °C, and nights cool down to about 4 °C. The sun is scarce, with only about 3.2 hours a day. Rain is frequent, with about 12 rainy days and 159 mm in total. All in all, December is not an ideal month for a holiday in Viseu.
Viseu in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Viseu
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 10°. A duvet at night and a jumper for the evening.
The coolest nights are in January (3°), the warmest in August (15°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from November to April, 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 | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 34 | 12° | 3° | 3.6 h | 12 | 160 |
| FebruaryFeb | 53 | 14° | 3° | 4.9 h | 9 | 102 |
| MarchMar | 66 | 17° | 5° | 5.8 h | 12 | 128 |
| AprilApr | 72 | 19° | 7° | 6.6 h | 13 | 122 |
| MayMay | 81 | 22° | 10° | 7.8 h | 11 | 86 |
| JuneJun | 94 | 26° | 13° | 9.1 h | 7 | 43 |
| JulyJul | 82 | 30° | 15° | 10.4 h | 3 | 18 |
| AugustAug | 80 | 30° | 15° | 10.0 h | 4 | 22 |
| SeptemberSep | 88 | 26° | 13° | 7.6 h | 7 | 70 |
| OctoberOct | 70 | 21° | 10° | 5.3 h | 12 | 179 |
| NovemberNov | 49 | 15° | 6° | 3.8 h | 12 | 155 |
| DecemberDec | 34 | 12° | 4° | 3.2 h | 12 | 159 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), 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
40.66° N, 7.91° W · 469 m · Europe/Lisbon
Sunshine
Sunshine hours in Viseu
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 5.3 of 11.2 hours of daylight in Viseu, 47 % of the daylight hours.
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.
Rain
Rain in Viseu: 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, Viseu has about 12 rainy days with 179 mm of rain in total.
UV index
UV index in Viseu
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 40 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 the time, 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.
Wind & clouds
Wind and clouds in Viseu
How breezy and how cloudy Viseu 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 Viseu typically peaks at 15 km/h during the day: Beaufort 3, gentle breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 59 % of the sky over Viseu: variable cloud, with about 5.3 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 & humidity
Heat and humidity in Viseu
How often the day gets hot in Viseu (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, Viseu has about 1 hot day, 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
Planning a trip to Viseu
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Viseu 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.
Viseu has its best school-holiday weather during May half-term (score 84) and its weakest during the Christmas holidays (score 34).
- 70
Easter holidays
Mar – Apr
Good
- 18 °C by day
- 6.4 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 84
May half-term
May – Jun
ExcellentBest holidays
- 23 °C by day
- 8.1 h of sun a day
- 10 rainy days a month
Good for: Sightseeing & walks
- 81
Summer holidays
Jul – Aug
Excellent
- 30 °C by day
- 10.1 h of sun a day
- 4 rainy days a month
- 70
October half-term
Oct
Good
- 21 °C by day
- 5.3 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
- 34
Christmas holidays
Dec – Jan
Poor
- 12 °C by day
- 3.4 h of sun a day
- 12 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 5 min
- Distance
- 1,330 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.
Good to know: Portugal
- Currency
- Euro (EUR)
- Language
- Portuguese
- Sockets
- Type C, F · 230 V
- Traffic
- Drives on the right
- Dialling code
- +351
- Emergency number
- 112
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Viseu compared
Put Viseu side by side with another destination.
Viseu vs Lamego
In October the holiday weather in Viseu and Lamego is about equally good (score 70 vs 67). During the day Lamego is 1 °C cooler than Viseu.
| in October | Viseu | Lamego |
|---|---|---|
| Holiday weather score | 70 | 67 |
| Daytime high | 21° | 20° |
| Sunshine | 5 h | 5 h |
| Rainy days | 12 | 13 |
| Best time | May – Sep | May – Sep |
Through the year
Best places in the country
Portugal in October: the best places
In October, Viseu ranks 10 among the 31 nearest destinations in this country.
- Tomar24°82
- 2Santarém24°80
- 3Torres Vedras22°80
- 4Mafra21°80
- 5Leiria22°78
- 6Chaves22°76
- 7Fátima22°76
- 8Coimbra23°74
- 10ViseuThis page21°70
Places nearby
Near Viseu
Other destinations close by.
Places with a similar climate
Places with a climate like Viseu
Destinations whose weather through the year is closest to Viseu's – good alternatives.
Frequently asked questions about Viseu
When is the best time to visit Viseu?
The best time to visit Viseu is from May to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Viseu?
August is the warmest month, with average highs of 30 °C and nights around 15 °C. January is the coolest month at 12 °C.
When does it rain most in Viseu?
Rain is frequent in April and from October to December; the wettest month is October with 179 mm. The driest month is July with 18 mm.
How many hours of sunshine does Viseu get?
Viseu gets around 2,380 hours of sunshine a year. The sunniest month is July with 10.4 hours a day; in December there are 3.2 hours a day.
What time zone is Viseu in?
Viseu is on UTC+0 in January and UTC+1 in July.
How long is the flight from London to Viseu?
A nonstop flight from London to Viseu takes about 2 h 5 min, for a straight-line distance of about 1,330 km.
Which school holidays are best for Viseu?
Viseu has its best school-holiday weather during May half-term (score 84) and its weakest during the Christmas holidays (score 34). Holiday ratings (0–100): Easter holidays 70, May half-term 84, summer holidays 81, October half-term 70, Christmas holidays 34.