Reykjavik Weather in October
In October, Reykjavik averages a high of 7°C (45°F) and a low of 3°C (37°F), based on 55 years of historical weather data from REYKJAVIK.
7°C
Average high
45°F
3°C
Average low
37°F
16°C
Record high
60°F · 2001
-9°C
Record low
16°F · 2025
What to Expect in Reykjavik in October
Typical October days in Reykjavik reach 7°C (45°F) during the afternoon and cool to around 3°C (37°F) overnight. On average, measurable rain falls on about 62% of days this month. Over the past 55 years, October temperatures in Reykjavik have ranged from a record high of 16°C (2001) down to a record low of -9°C (2025).
For a day-by-day look or other months, see the full Reykjavik weather history.