The best time to visit Campo Viera is during the autumn and spring months, specifically from March to May and September to November, when the weather is most pleasant.During these periods, you'll experience mild temperatures, typically ranging from 18°C to 25°C, making it ideal for exploring the tea and yerba mate plantations and enjoying outdoor activities. The humidity is also lower than in the summer, providing a more comfortable experience for sightseeing and tours. This is particularly appealing for couples looking for a relaxed yet active holiday, as they can comfortably take guided tours of the tea estates and enjoy the scenic countryside without the intense heat.The summer months, from December to February, can be quite hot and humid, with temperatures often exceeding 30°C, and there's a higher chance of heavy rainfall. While the landscape is at its most lush, the heat can be uncomfortable for some travellers.Winter, from June to August, brings cooler temperatures, sometimes dropping to around 10°C in the evenings, but days are generally sunny and dry. This can be a good option for those who prefer cooler weather for exploring.