Santarém Weather in September

Santarém in September sees very high daytime temperatures of 33°C (91°F) and nighttime lows of 26°C (79°F). With just 71 mm (2.8 in) of rainfall on average, it's the driest month of the year.

Rainfall in Santarém in September

You can expect the least amount of rain of the year this month, making it perfect for outdoor events and activities. On average, there are about 8 days with rain during this month, averaging 71 mm (2.8 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Santarém in September

Daytime temperatures in Santarém reach 33°C (91°F) in September, dropping to 26°C (79°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. Nights remain warm at around 26°C (79°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.

Sunshine in Santarém in September

Expect sunny days throughout the month, with an estimated 240 hours of sunshine. This makes it a pleasant time to visit Santarém.

For Santarém itself, August generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.