Cool
Average highs are around 8°C, so pack for cooler days.
September verdict
Borgarnes, Iceland in September
Weather score19Poor
Poor for holiday weather
Average highs are around 8°C, so pack for cooler days. Sunshine averages 3.3h per day, so this is not one of the brighter months. Rainfall averages 74mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
8°C
Rain
74mm
Sun
3.3h
Sea
10°C
Weather score
19
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 74mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 3.3h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 10°C, so the water can feel cool.
Map
Weather map
Compare Borgarnes, Iceland with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September8°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
September74mm average rain
September 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.
Sun
September3.3 hours average sun
September sits close to Borgarnes' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September10°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJune to September
Sea temperatures are usually near 10°C in this stretch, so swimming comfort is at its strongest.
Weather score
September19 weather score
September 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.
Hotels near Borgarnes, Iceland
Marriott
The Reykjavik EDITIONReykjavik, Iceland
101 Hotel, Reykjavik, a Member of Design Hotels™Reykjavik, Iceland
ION City Hotel, a Member of Design Hotels™Reykjavik, Iceland
ION Adventure Hotel, Nesjavellir, a Member of Design Hotels™Nesjavellir, Iceland
Courtyard Reykjavik Keflavik AirportReykjanesbaer, Iceland