Iceland enjoys a much milder climate than its name and location adjacent to the Arctic circle would imply. A branch of the Gulf Stream flows along the southern and the western coast greatly moderating the climate. However, this brings mild Atlantic air in contact with colder Arctic air resulting in a climate that is marked by frequent changes in weather and storminess. Furthermore this leads to more rainfall in the southern and western part than in the northern part of the island.
The month of October in Reykjavík is characterized by falling daily high temperatures, with daily highs decreasing from 9°C to 5°C over the course of the month, exceeding 12°C or dropping below 1°C only one day in ten. So bring a windbreaker, rainwear, a thick pullover (wool or fleece) and sturdy walking shoes.
Weather forecast for Reykjavík