Aberdeen has a cool maritime climate — wet and grey for much of the year, with cold winters and cool summers. The city averages around 50cm of rain annually, spread fairly evenly across the year. Summer (June to August) is the most reliable time for mild temperatures (typically 14–18°C) and longer daylight hours; mid-June has nearly 18 hours of daylight. The city's parks and gardens are at their best in June and July, and the festival programme is most active.
Spring (April to May) can be spectacular when the daffodils are out in Seaton Park and the cherry trees along the main streets are in bloom. Autumn is mild and often sunny. Winter is cold, dark, and wet — temperatures rarely drop below freezing in the city itself, but the grey is persistent. The winter festival (late November to January) brings light installations and events to the city centre.
The Granite City's indoor attractions — the Art Gallery, Maritime Museum, Marischal Museum, and the Winter Gardens at Duthie Park — make Aberdeen a reasonable all-weather city-break destination year-round.