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Open-water swimming weather in Aberdeen

If you're planning anything outdoors in Aberdeen, the city's northeast Scottish position makes its weather almost unique in the UK — most of the rain here comes from the east off the North Sea rather than the southwest off the Atlantic, which is the opposite of almost every other major British city. Summers are short and cool, haar fog rolls in off the sea from April to September, and Cairngorms shelter to the west keeps westerly rainfall lower than Glasgow. Daylight is genuinely long in summer — close to 18 hours at midsummer.

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If you're swimming open-water around Aberdeen (the beaches, the Don and Dee mouths, inland lochs), the North Sea is among the coldest swimming water in the UK and warms slowly — even in mid-summer, sea temperatures here lag well behind the south coast, and haar fog can roll in mid-swim with no warning.

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Last updated: 7 May 2026