São Luis Weather in December

December in São Luis sees daytime temperatures around 17°C (63°F) and lows of 9°C (48°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.

Rainfall in São Luis in December

As the rainiest month, carrying an umbrella is advisable to manage the frequent rain. Expect around 12 days of rain based on historical data, with 75 mm (3 in) average. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in São Luis in December

If you're visiting São Luis in December, expect highs of 17°C (63°F) and overnight lows around 9°C (48°F). The month of December belongs to the winter season. Conditions are often most pleasant around the middle of the day. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in São Luis in December

The city usually sees around 156 hours of sunlight, indicating a moderately sunny period.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit São Luis. Our weather planner can help you explore destinations with more pleasant weather conditions.

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 Luis's climate page.

São Luis Temperature in December

Min Temperature 9°C (48°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 41%  

Precipitation 75 mm (3 in)  

Rainy days 12 days  

Humidity 77% *  

Sunshine 156 hours *  

Percentage Sunshine *  

* Data from: Praia da Rocha, Portugal (62 KM, 38 Miles).

What to Wear in São Luis in December

Pleasant temperatures in December mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in São Luis in December

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

Swimming

5/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

4/10

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 Luis's climate page.

More climate data for São Luis

Temperature Rainfall Sunshine Humidity

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