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Hiking weather in Swansea

If you're planning anything outdoors in Swansea, the city's full Atlantic exposure on the Welsh south coast makes it one of the wettest places in the UK — significantly wetter than Cardiff just down the road, with no mountain protection from the systems coming in off the sea. Winters are mild thanks to the Bristol Channel, but rainfall totals are real, and December is properly wet. The trade-off is that the same exposure brings dramatic skies and the Gower coast on your doorstep.

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If you're hiking from Swansea, the Gower and the Brecon Beacons offer two very different climates — the Gower coast catches Atlantic wind and weather first, while the Beacons get colder and much wetter, with hill forecasts essential rather than optional.

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Last updated: 7 May 2026