Castro Marim Weather & Climate: Best Time to Visit

Visitors to Castro Marim can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a very warm 32°C (90°F) in July to a moderate 16°C (61°F) in the coolest month, January.

Nights vary from 21°C (70°F) in July to around 9°C (48°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Castro Marim tends toward drier weather patterns, receiving approximately 437 mm (17 in) of rain per year. The climate in Castro Marim shows significant variation throughout the year. Expect moderate rainfall in December, the wettest month, with an average of 67 mm (2.6 in) of precipitation over 13 rainy days.

In contrast, the driest month July offers drier and sunnier days, with around 1 mm (0.04 in) of rainfall over a single rainy day. For more details, please visit our Castro Marim Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, Castro Marim serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 12.0 hours of sunshine daily, and embrace the darker days in December, offering only 5.3 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Castro Marim.

The city experiences its highest humidity in January, reaching 77%. In July, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year