Weather Arran
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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Policyline weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Arran’s weather is notoriously changeable, shaped by its position in the Firth of Clyde. The live forecast above gives the current conditions, but expect four seasons in one day – particularly in spring and autumn – with rain possible at any time.
What is the typical weather pattern on Arran?
The west coast of the island, around Brodick and Lamlash, tends to be slightly drier and milder than the exposed eastern side near the Highland Boundary Fault. Prevailing south-westerlies bring maritime air, so winters are cool rather than bitterly cold, while summers remain fresh – July averages around 15°C. The mountainous interior, including Goatfell, can catch cloud and rain even when the coast is sunny; check BBC Weather Arran for hourly updates before heading out.
When is the best time to visit for settled weather?
Late May to early September offers the highest chance of dry, calm days, though the island can still feel the tail-end of Atlantic fronts. For longer-range planning, the Met Office’s 30-day outlook (ise of arran weather 30 days) is useful, but short-term forecasts – weather arran 7 days and weather arran 14 days – are more reliable. Autumn gales are common from October onwards, with sudden squalls catching walkers off guard.
Is Arran’s weather similar to Glasgow’s?
Yes, broadly – Arran and Glasgow share the same maritime influence. However, the island’s hills create localised showers, so weather arran tomorrow can differ from the mainland. Always check the live forecast above.
How accurate are 14-day forecasts for Arran?
Beyond 7 days, accuracy drops significantly. The Met Office’s 30-day outlook gives general trends only. For specific planning, rely on the live forecast above and BBC Weather Arran 14 days as a loose guide.
Does Arran get snow in winter?
Snow falls on Goatfell most winters, but at sea level it is rare and usually melts quickly. The weather arran 7 days forecast will show any cold snaps; roads can be icy on higher routes.
Sources
For more UK-wide conditions, see our UK weather hub or nearby Glasgow Weather. Long-range planning? Check the 10 Day Weather Forecast UK.
