Climate Insights for Viseu
Climate Overview
The climate in Viseu is temperate. The average annual temperature is 14°C and approximately 1,278 mm of precipitation falls per year. October is the wettest month, receiving around 173 mm of rainfall. Viseu is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 4°C.The climate in Viseu is temperate. The average annual temperature is 57°F and approximately 50.3 in of precipitation falls per year. October is the wettest month, receiving around 6.8 in of rainfall. Viseu is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 39°F.
Temperature
Temperatures in Viseu vary considerably across the year, with a 24°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 21°C. January is the coolest month, with minimum temperatures around 4°C and an average of 7°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.Temperatures in Viseu vary considerably across the year, with a 44°F difference between the coldest and warmest months. The warmest month is August, when average highs reach 83°F and the mean temperature sits around 70°F. January is the coolest month, with minimum temperatures around 39°F and an average of 45°F. On average, daily temperatures fluctuate by about 17°F between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 9°F shift in average temperatures.
Precipitation
Viseu is a fairly wet location, receiving approximately 1,278 mm of precipitation annually, which averages out to around 107 mm per month. The wettest month is October, averaging 173 mm of rainfall. November and January also tend to see above-average precipitation. The driest month is August, with just 11 mm. That's 162 mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.Viseu is a fairly wet location, receiving approximately 50.3 in of precipitation annually, which averages out to around 4.2 in per month. The wettest month is October, averaging 6.8 in of rainfall. November and January also tend to see above-average precipitation. The driest month is August, with just 0.4 in. That's 6.4 in less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Viseu is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.Viseu is mildly breezy, with an average annual wind speed of 6mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is March, averaging 7mph, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 5mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2mph between the calmest and windiest months.
Best Time to Visit
The best time to visit Viseu is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 43 mm per month. By contrast, January can be quite cold with temperatures dropping to 4°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Viseu is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 66°F with modest rainfall averaging 1.7 in per month. By contrast, January can be quite cold with temperatures dropping to 39°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Viseu based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Viseu based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.