Cool
Average highs are around 9°C, so pack for cooler days.
December verdict
Dublin, Ireland in December
Weather score16Poor
Poor for holiday weather
Average highs are around 9°C, so pack for cooler days. Sunshine averages 1.6h per day, so this is not one of the brighter months. Rainfall averages 75mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
9°C
Rain
75mm
Sun
1.6h
Sea
11°C
Weather score
16
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 75mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 1.6h 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 Dublin, Ireland with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December9°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
December75mm average rain
December is close to Dublin's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
December1.6 hours average sun
December is one of Dublin's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December11°C average sea
December is close to Dublin's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to October
Sea temperatures are usually near 15°C in this stretch, so swimming comfort is at its strongest.
Weather score
December16 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 August
These months have the strongest weather score in the monthly averages.
