Cool
Average highs are around 6°C, so pack for cooler days.
Weather Guide
Reykjavik, Iceland Average Monthly Weather
Weather score18Poor annual avg
Best months: May, July, June
Across the year, average daytime temperatures are around 6°C, sunshine averages 3.1h per day, and rainfall totals about 1045mm. Sea temperatures average 8°C across the year.
Annual weather
Annual averages
Temp
6°C
Rain
1045mm
Annual total
Sun
3.1h
Sea
8°C
Weather score
18
Poor avg
Seasonal climate calendar
Trip feel
Showers
Rainfall averages 115mm, so some wet days are possible.
Limited sun
Sunshine averages 2.3h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 9°C, so the water can feel cool.
Map
Weather map
Compare Reykjavik, Iceland with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
October6°C average high
October is close to Reykjavik's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
October115mm average rain
October is one of Reykjavik's wettest months, so rain is likely to be a major planning factor.
Driest monthsApril to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
October2.3 hours average sun
October sits close to Reykjavik's 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
October9°C average sea
October is close to Reykjavik's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 11°C in this stretch, so swimming comfort is at its strongest.
Weather score
October13 weather score
October 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.
