Santarém Weather & Climate: Best Time to Visit

With minimal seasonal shifts, Santarém experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a very warm 33°C (91°F) in October to a very warm 30°C (86°F) in the coolest month, March.

Nights vary from 26°C (79°F) in October to around 25°C (77°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Santarém has a notably wet climate with abundant precipitation, recording 3075 mm (121 in) of rainfall per year. The climate in Santarém shows significant variation throughout the year. Expect heavy rainfall in March, the wettest month, with an average of 480 mm (19 in) of precipitation over 27 rainy days.

In contrast, the driest month September offers drier and sunnier days, with around 71 mm (2.8 in) of rainfall over 8 rainy days. For more details, please visit our Santarém 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, Santarém serves as an ideal destination. Expect longer, more sun-filled days in August with an average of 8.4 hours of sunshine daily, and embrace the darker days in February, offering only 4.1 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The city experiences its highest humidity in May, reaching 93%. In November, the humidity drops to its lowest level at 85%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year