São Mateus Weather in December

In São Mateus, December brings pleasant daytime temperatures around 18°C (64°F), with nights cooling to 15°C (59°F). It is the wettest month of the year, so expect more rainfall than usual.

Rainfall in São Mateus in December

Expect frequent showers this month, so make sure to have an umbrella to keep yourself dry. Analyzing past climate data, one can expect approximately 19 days of rain, averaging 129 mm (5.1 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in São Mateus in December

In December, São Mateus sees pleasant temperatures, with highs of 18°C (64°F). Nights drop to around 15°C (59°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

For São Mateus itself, June, July, August, September and November generally stand 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.

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• January
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For a detailed overview over the year and the best time to visit Portugal, check out our São Mateus's climate page.

São Mateus Temperature in December

Min Temperature 15°C (59°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 63%  

Precipitation 129 mm (5.1 in)  

Rainy days 19 days  

What to Wear in São Mateus in December

For São Mateus in December, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.

What To Do in São Mateus in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Portugal, check out our São Mateus's climate page.

More climate data for São Mateus

Temperature Rainfall

See the full São Mateus climate overview or explore weather in Portugal.