Weather in Viseu

Planning your day in the city of Viseu? Here you will find the latest weather information, including up-to-date forecasts and visual charts to help you prepare for any conditions.

The climate in Viseu can be characterized as temperate-warm with a noticeable Mediterranean influence. This means travellers can expect distinct seasons here, each possessing its own unique charm. Overall, the weather here is comfortable, without extreme temperature fluctuations, making the city a pleasant destination to visit at any time of year.

Summer in this region of Portugal is usually warm and very sunny. The hottest months are July and August, when the average maximum temperature reaches 28°C, and precipitation is practically absent. This is the ideal time for those who love dry and clear weather, conducive to long walks around the historic centre and open-air sightseeing.

The winter period, conversely, is distinguished by mildness and increased humidity. From November to March, the temperature stays on average at the level of 7–10°C, and rains become quite frequent guests: the number of rainy days can reach 14 per month. Spring and autumn serve as a pleasant transition with moderate warmth, although an umbrella should still be kept at hand during these months, as the weather can be changeable.

Climatic conditions in Viseu are characterized by mildness and a comfortable temperature regime that changes smoothly throughout the year. The coldest month is traditionally January, when the average temperature is about 7.3°C, and night figures can drop to 3.4°C. Conversely, the peak of heat falls on August: at this time the air warms up on average to 22.3°C, and daytime highs often reach 28.6°C, creating excellent conditions for lovers of sunny weather.

Summer in the city can be described as warm and predominantly dry, especially in July and August, when precipitation is practically absent. Winter here is cool, but without extreme frosts: even on the coldest days, the temperature rarely drops below zero, holding in the range of 11-12°C during the day. Spring and autumn offer a pleasant balance with average values from 10°C to 19°C, however, travellers should be prepared for the fact that in these transitional seasons the number of rainy days notably increases.

An important feature of the local climate is the perceptible temperature amplitude during the day, which is especially noticeable in the summer period. For example, after a hot August afternoon, when the temperature can approach 29°C, the night brings significant freshness, and the air cools down to 16°C. Such a difference of more than 12 degrees makes evenings pleasant for walks but suggests to tourists the need to have light outerwear with them even at the height of the holiday season.

The climate in Viseu has distinct seasonality, where a dry and sunny summer period is replaced by a wetter off-season and winter. If you are planning a trip in July or August, you will likely not need an umbrella: these are the driest months of the year, when the amount of precipitation tends to zero, and the probability of rain is minimal (only 2–3 wet days per month).

With the arrival of autumn, the frequency of precipitation noticeably increases. The rainiest periods, judging by statistics, are March, April, November, and December. In these months, inclement weather can be observed up to 14 days, so tourists should be ready for frequent rains. October also marks the transition to the wet season with approximately 13 rainy days.

In winter, despite the drop in temperature (in January the minimum is about 3.4°C), precipitation falls mainly in the form of rain. Snow in the city itself is an infrequent phenomenon, as average temperatures remain positive. Spring begins with quite wet weather in March and April, but already by May the number of rainy days reduces to nine, heralding the imminent arrival of a dry summer.

When preparing for a trip to Viseu, first of all, take care of comfortable flat-soled shoes. The historic city centre with its cobbled streets is conducive to long walking tours, so comfortable trainers or stable boots will become your best companions. Considering that the weather in this region of Portugal can be changeable, the optimal solution will be using the layering principle in clothing: a combination of a t-shirt, jumper, and light jacket will allow you to quickly adapt to temperature changes during the day.

If your trip is planned for the summer months (July-August), when there is practically no precipitation and the temperature rises to 28°C, be sure to take light clothing made of natural fabrics, a hat, sunglasses, and high SPF cream. For a visit in the winter period or off-season (especially from October to April), a warm waterproof jacket and a reliable umbrella are critically important, as at this time rains occur quite often, and the temperature can drop to 3-5°C at night.