At 64° north, Reykjavik is characterized by extremes of day and night length over the course of the year. From 20 May to 24 July, daylight is essentially permanent as the sun never gets more than 5° below the horizon. Day length drops to less than five hours between 2 December and 10 January. The sun climbs just 3° above the horizon during this time. However, day length begins increasing rapidly during January and by month's end there are seven hours of daylight.