Cool
Average highs are around 15°C, so pack for cooler days.
December verdict
Portugal in December
Weather score26Poor
Poor for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 4.4h per day, so this is not one of the brighter months. Rainfall averages 117mm, so some wet days are possible.
December weather
Monthly averages
Temp
15°C
Rain
117mm
Sun
4.4h
Sea
11°C
Weather score
26
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 117mm, so some wet days are possible.
Limited sun
Sunshine averages 4.4h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 11°C, so the water can feel cool.
Map
Weather map
Compare Portugal with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December15°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December117mm average rain
December is one of Portugal's wettest months, so rain is likely to be a major planning factor.
Driest monthsJune to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December4.4 hours average sun
December is one of Portugal's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December11°C average sea
December is below Portugal's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJune to October
Sea temperatures are usually near 12°C in this stretch, so swimming comfort is at its strongest.
Weather score
December26 weather score
December is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
Hotels near Portugal
Marriott
Sheraton Cascais ResortCascais, Portugal
The Ritz-Carlton, Penha Longa ResortSintra, Portugal
Moxy Alfragide LisboaLisboa, Portugal
Altis Belém Hotel & Spa, a Member of Design Hotels™Lisbon, Portugal
Lisbon Marriott HotelLisbon, Portugal
Memmo Principe Real, Lisbon, a Member of Design Hotels™Lisbon, Portugal