Viseu Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Viseu.
Climate overview of Viseu
Viseu, in the Beiras region of Portugal, experiences a range of weather conditions across the year. Summers are generally warm and dry, while the cooler months are mild with frequent rainfall. The city sees a relatively high amount of precipitation, especially in autumn and winter. Known for its hilltop setting, granite architecture, and wine tradition, Viseu appeals to visitors looking for a quieter inland destination with a strong regional identity. Now, let’s explore all the climate details to give you a complete picture.
Viseu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Viseu — and find the best time to visit.
Monthly Temperature in Viseu
Depending on the time of the year, temperatures range from comfortable to moderate in Viseu. Average daytime temperatures reach a comfortable 29°C (84°F) in August. In January, the coolest month of the year, temperatures drop to a moderate 12°C (54°F).
At night, temperatures range from around 15°C (59°F) in August to 4°C (39°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Viseu
Viseu has a relatively rainy climate with high precipitation levels, averaging 1118 mm (44 in) of rainfall annually. Viseu can be quite wet during October, receiving approximately 150 mm (5.9 in) of precipitation over 13 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 17 mm (0.7 in) of precipitation spread across 6 rainy days days. For more details, please visit our Viseu Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Viseu
Viseu can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.5 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Viseu by Month
The relative humidity is high throughout the year in Viseu.
The city experiences its highest humidity in February, reaching 81%. In August, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Viseu
Rainfall during this time ranges from 17 mm (0.7 in) in July to 89 mm (3.5 in) in May. This means you can expect a mix of sunny days and occasional showers. Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.
Frequently asked questions about the climate in Viseu
What is the best time to visit Viseu?
May, June, July, August and September typically offer the most optimal weather in Viseu. In contrast, January and December tend to have less optimal conditions. Viseu has a distinct dry season from June to August.
What temperatures can I expect in Viseu?
Daytime highs range from 12°C (54°F) in January to 29°C (84°F) in August. Nighttime lows range from 4°C (39°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Viseu get?
Annual rainfall is around 1118 mm (44 in). October is the wettest month with 150 mm (5.9 in), while July is the driest with 17 mm (0.7 in).
How sunny is Viseu?
Viseu receives around 2,427 hours of sunshine per year. July is the sunniest month with 345 hours, while December is the cloudiest with just 105 hours. Overall, Viseu enjoys abundant sunshine.
Viseu 3-Day Forecast
Viseu 3-Day Forecast
Viseu on the map
Viseu is highlighted — select any city to see its climate.
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