Cool
Average highs are around 7°C, so pack for cooler days.
Weather Guide
Vatnajökull National Park, Iceland Average Monthly Weather
Weather score13Poor annual avg
Best months: May, July, June
Across the year, average daytime temperatures are around -1°C, sunshine averages 2.9h per day, and rainfall totals about 1874mm. Sea temperatures average 8°C across the year.
Annual weather
Annual averages
Temp
-1°C
Rain
1874mm
Annual total
Sun
2.9h
Sea
8°C
Weather score
13
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 156mm, so some wet days are possible.
Limited sun
Sunshine averages 4.5h 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 Vatnajökull National Park, Iceland with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August7°C average high
August is one of Vatnajökull National Park's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
August156mm average rain
August sits near Vatnajökull National Park's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsApril to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August4.5 hours average sun
August is brighter than Vatnajökull National Park's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August11°C average sea
August is one of Vatnajökull National Park's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to August
Sea temperatures are usually near 11°C in this stretch, so swimming comfort is at its strongest.
Weather score
August16 weather score
August scores above Vatnajökull National Park's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsApril to September
These months have the strongest weather score in the monthly averages.
