Estoril
Weather by month
Current –

Estoril Weather in December

Estoril in December sees moderate temperatures, with highs around 16°C (61°F) and overnight lows of 12°C (54°F). Rainfall is fairly high at around 90 mm (3.5 in) on average, so pack waterproofs just in case.

Rainfall in Estoril in December

Analyzing past climate data, one can expect approximately 14 days of rain, averaging 90 mm (3.5 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Estoril in December

Expect highs of 16°C (61°F) in Estoril in December, with nights dropping to around 12°C (54°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights cool down to 12°C (54°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 Estoril in December

The month experiences a moderate amount of sunlight, with 162 hours of sunshine. This provides a nice balance between sunshine and clouds.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Estoril. Our weather planner can help you explore destinations with more pleasant weather conditions.

Estoril Temperature in December

Min Temperature
12°C (54°F)
Max Temperature
16°C (61°F)
Chance of Rain
47%
Precipitation
90 mm (3.5 in)
Rainy days
14 days
Humidity
81% *
Sunshine
162 hours *
Percentage Sunshine
55% *
* Data from: Cascais, Portugal (2 KM, 1 Miles).

Estoril Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Estoril - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Estoril typically stay consistent throughout December, with daily highs averaging around 16°C (61°F). Nights are cool, with lows around 9°C (48°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 records for Estoril in December

Browse day-by-day weather records for Estoril spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Estoril historical weather extremes in December

Our historical data for Estoril spans 1976 to 2025, revealing these weather extremes.

  • The warmest day in December was on December 2, 1985, with a maximum of 23°C (73°F).
  • On December 20, 2009, Estoril saw its coldest December day with temperatures maxing out at 8°C (46°F).
  • Nighttime temperatures dropped to -1°C (30°F) on December 5, 1998, marking the coldest December night on record.

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
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Estoril 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 Estoril 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
    8/10
  • Outdoor sports
    9/10

Estoril 3-Day Forecast

More climate data for Estoril

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.