Aberdeen features an oceanic climate . Aberdeen has far milder winter temperatures than one might expect for its northern location, although statistically it is the coldest city in the UK. During the winter, especially throughout December, the length of the day is very short, averaging 6 hours and 41 minutes between sunrise and sunset at winter solstice. As winter progresses, the length of the day grows fairly quickly, to 8 hours and 20 minutes by the end of January. Around summer solstice, the days will be around 18 hours long, having 17 hours and 55 minutes between sunrise and sunset. During this time of the year marginal nautical twilight lasts the entire night. Temperatures at this time of year hover around 17.0 °C (62.6 °F) during the day in most of the urban area, though nearer 16.0 °C (60.8 °F) directly on the coast, and around 18.0 to 19.0 °C (64.4 to 66.2 °F) in the westernmost suburbs, illustrating the cooling effect of the North Sea during summer. In addition, from June onward skies are more overcast than in April/May, as reflected in a lower percentage of possible sunshine (the percentage of daylight hours that are sunny). These factors render both summer and winter temperate and mild for the latitude, both by European standards and those of far-inland climates on other continents.
For example, all coastal Bothnian and even some elevated climates in Scandinavia near or above the polar circle have warmer summers than Aberdeen. During winter, the city is instead having similar temperatures to Milan much further south due to said maritime influence.
Two weather stations collect climate data for the area, Aberdeen/Dyce Airport, and Craibstone. Both are about .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}4+1⁄2 miles (7 km) to the north west of the city centre, and given that they are in close proximity to each other, exhibit very similar climatic regimes. Dyce tends to have marginally warmer daytime temperatures year round owing to its slightly lower elevation, though it is more susceptible to harsh frosts. The coldest temperature to occur in recent years was −16.8 °C (1.8 °F) during December 2010, while the following winter, Dyce set a new February high temperature station record on 28 February 2012 of 17.2 °C (63.0 °F), and a new March high temperature record of 21.6 °C (70.9 °F) on 25 March 2012.
The average temperature of the sea ranges from 6.6 °C (43.9 °F) in March to 13.8 °C (56.8 °F) in August.