Castelo de Paiva is a charming small town located in the District of Aveiro, Portugal. It is situated on the left bank of the river Douro, surrounded by lush green hills and stunningly beautiful scenery. The town is well known for its leisurely walks across the river, where visitors can soak up the beautiful views of the river and the surrounding landscape. The town is also rich in history and culture, having been occupied by various civilizations over the centuries, including the Celts, Romans, Moors, and Christians. Castelo de Paiva is a must-visit destination for anyone looking for a peaceful getaway in a lovely location.

The nearest airport to Castelo de Paiva is Francisco Sá Carneiro Airport in Porto, which is about 40km away. From the airport, visitors can take a taxi, rental car, or public transportation to reach their destination. If arriving from the nearest city of Porto, Castelo de Paiva can be reached either by car or bus which departs from the bus station in Porto.

The best time to visit Castelo de Paiva is during the summer months of June to September when the weather is warm and sunny. However, visitors can also enjoy the town's beauty during other seasons as well. Spring and autumn provide cooler temperatures, yet still pleasant weather for outdoor activities. During winter, visitors can enjoy the peaceful vibe of the town and its surrounding quaint villages.

During the summer months, temperatures in Castelo de Paiva range from mid-20s to low-30s Celsius. Spring and autumn are milder with temperatures ranging from mid-teens to high-20s Celsius. Winter can be cool with temperatures ranging from low single digits to high-teens Celsius, but it is still great for exploring and enjoying the peacefulness of the town.

Accommodation in Castelo de Paiva ranges from budget-friendly options like hostels and guest rooms, which cost around €15-20 per night, to luxury hotels and boutique B&Bs, which cost around €100-150 per night. For a more authentic experience, visitors can also stay in restored traditional houses for a cost of around €80 per night.

Food in Castelo de Paiva is affordable, with most restaurants offering typical Portuguese dishes at reasonable prices. A full meal at a local restaurant can cost around €10-15 per person, while a cup of coffee or a pint of beer can cost around €1.50-2.50. Groceries can be purchased at local supermarkets such as Pingo Doce or Continente for similar prices as in other towns of Portugal.

Castelo de Paiva is considered a safe destination. Crime rates are low, and the town is welcoming to all visitors regardless of their race, gender, or sexual orientation. However, visitors should still exercise caution when traveling, particularly when walking alone at night.

Castelo de Paiva has a population of around 15,000 people. The majority of the population is Portuguese, with a small percentage of immigrants from Eastern Europe and Brazil. The primary language spoken is Portuguese, and the main religion is Roman Catholicism.

There are plenty of activities for tourists in Castelo de Paiva. Visitors can take leisurely walks along the river and explore the town's surrounding scenic countryside. It is also a great destination for cycling, fishing, and hiking. For history buffs, the town offers several landmarks and buildings such as the Paiva Castle, which dates back to the 11th century. Visitors can also enjoy wine tastings of the famous Port wine produced in the Douro valley.