Santa Maria Island Weather in December
December in Santa Maria Island brings pleasant temperatures, with highs of 19°C (66°F) and nights dropping to 16°C (61°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Santa Maria Island in December
Prepare for the wettest month with an umbrella to protect yourself from frequent rain. Based on our climate data of the past 30 years, about 16 days of rain are anticipated, with 111 mm (4.4 in) on average. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Santa Maria Island in December
December in Santa Maria Island brings pleasant temperatures, with highs of 19°C (66°F) and nights around 16°C (61°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 16°C (61°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Santa Maria Island in December
You can expect a moderate amount of sunlight, with approximately 106 hours. This means a pleasant mix of sun and overcast.December in Santa Maria Island has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Santa Maria Island's climate page.
Santa Maria Island Temperature in December
Min Temperature
16°C (61°F)
Max Temperature
19°C (66°F)
Chance of Rain
54%
Precipitation
111 mm (4.4 in)
Rainy days
16 days
Humidity
78%
Sunshine
106 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Santa Maria Island typically stay consistent throughout December, with daily highs averaging around 19°C (66°F). Nights are pleasant, with lows around 14°C (57°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Santa Maria Island in December
Browse day-by-day weather records for Santa Maria Island spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santa Maria Island historical weather extremes in December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Santa Maria Island.
- On December 7, 2018, temperatures climbed to 23°C (73°F), marking the warmest December day on record.
- Santa Maria Island experienced its chilliest December day on December 12, 1976, reaching only 13°C (55°F).
- The coldest night in December in Santa Maria Island was on December 1, 2010, with a minimum of 8°C (46°F).
Best Places in Portugal in December
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in December →
perfect weather
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tolerable
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What to Wear in Santa Maria Island in December
Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Santa Maria Island in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Santa Maria Island's climate page.
Temperature Rainfall Sunshine Humidity
See the full Santa Maria Island climate overview or explore weather in Portugal.
