Cool
Average highs are around -6°C, so pack for cooler days.
December verdict
Vatnajökull National Park, Iceland in December
Weather score9Poor
Poor for holiday weather
Average highs are around -6°C, so pack for cooler days. Sunshine averages 0.3h per day, so this is not one of the brighter months. Rainfall averages 180mm, so some wet days are possible.
December weather
Monthly averages
Temp
-6°C
Rain
180mm
Sun
0.3h
Sea
7°C
Weather score
9
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 180mm, so some wet days are possible.
Limited sun
Sunshine averages 0.3h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 7°C, so the water can feel cool.
Map
Weather map
Compare Vatnajökull National Park, Iceland with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December-6°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
December180mm average rain
December is wetter than Vatnajökull National Park's yearly average, so flexible plans matter more.
Driest monthsApril to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December0.3 hours average sun
December is one of Vatnajökull National Park's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December7°C average sea
December is below Vatnajökull National Park's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to August
Sea temperatures are usually near 11°C in this stretch, so swimming comfort is at its strongest.
Weather score
December9 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 monthsApril to September
These months have the strongest weather score in the monthly averages.
