Viana do Castelo Weather in June
Viana do Castelo in June averages 22°C (72°F) during the day and 15°C (59°F) at night. Some rainfall is typical for this time of year.
Rainfall in Viana do Castelo in June
Past climate data indicates that roughly 10 days will see rain, totalling around 53 mm (2.1 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Viana do Castelo in June
If you're visiting Viana do Castelo in June, expect perfect temperatures with highs of 22°C (72°F) and overnight lows of 15°C (59°F). Conditions are often most pleasant around the middle of the day. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Viana do Castelo in June
The days are predominantly sunny, with an estimated total of around 278 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If you favor pleasant temperatures and minimal rainfall, June is one of the best months to visit Viana do Castelo.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Viana do Castelo's climate page.
Viana do Castelo Temperature in June
Min Temperature
15°C (59°F)
Max Temperature
22°C (72°F)
Chance of Rain
33%
Precipitation
53 mm (2.1 in)
Rainy days
10 days
Humidity
74% *
Sunshine
278 hours *
Percentage Sunshine
66% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Viana do Castelo typically stay consistent throughout June, with daily highs averaging around 22°C (72°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 15°C (59°F).
Average temperatures in June
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 June
Historical weather for Viana do Castelo in June
Browse day-by-day weather records for Viana do Castelo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Viana do Castelo historical weather extremes in June
Our historical data for Viana do Castelo spans 1976 to 2026, revealing these weather extremes.
- The warmest day in June was on June 14, 1981, with a maximum of 38°C (100°F).
- The lowest daytime temperature in June was 14°C (57°F), recorded on June 2, 1984.
- Nighttime temperatures dropped to 6°C (43°F) on June 5, 1984, marking the coldest June night on record.
Best Places in Portugal in June
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in June →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Viana do Castelo in June
Comfortable temperatures call for an easy wardrobe in June. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Viana do Castelo in June
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Viana do Castelo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Viana do Castelo climate overview or explore weather in Portugal.
