Penalva do Castelo Weather & Climate: Best Time to Visit

Visitors to Penalva do Castelo can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 29°C (84°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 11°C (52°F).

At night, temperatures range from around 15°C (59°F) in July to 3°C (37°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Penalva do Castelo experiences moderate precipitation patterns, averaging 917 mm (36 in) yearly. Penalva do Castelo can be quite wet during October, receiving approximately 125 mm (4.9 in) of precipitation over 13 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 15 mm (0.6 in) of precipitation spread across 6 rainy days. For more details, please visit our Penalva do Castelo Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Penalva do Castelo 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

The relative humidity is high throughout the year in Penalva do Castelo.

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