Cool
Average highs are around 12°C, so pack for cooler days.
August verdict
Poor for holiday weather
Average highs are around 12°C, so pack for cooler days. Sunshine averages 4.5h per day, so this is not one of the brighter months. Rainfall averages 70mm, which is relatively low for holiday planning.
Monthly averages
Temp
12°C
Rain
70mm
Sun
4.5h
Sea
11°C
Weather score
22
Poor
Cool
Average highs are around 12°C, so pack for cooler days.
Drier
Rainfall averages 70mm, which is relatively low for holiday planning.
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
Compare Borgarnes, Iceland with nearby places by weather score, rain, sun, temperature, and swim conditions.
August12°C average high
August is one of Borgarnes' hottest months, so shade and slower afternoons matter.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
August70mm average rain
August sits near Borgarnes' yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsApril to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August4.5 hours average sun
August is brighter than Borgarnes' 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.
August11°C average sea
August is one of Borgarnes' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to September
Sea temperatures are usually near 10°C in this stretch, so swimming comfort is at its strongest.
August22 weather score
August sits close to Borgarnes' yearly weather-score average, giving a typical overall read on the month.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.
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