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Weather on the North Coast by Season

Travel Tips

Weather on the North Coast by Season

Written by the Visit Portrush team · Updated 28 July 2026

The north coast has a mild, wet, maritime climate — genuinely mild extremes in both directions (rarely very hot, rarely very cold), but rain and wind are a real, year-round possibility whatever the season. Pack layers and something waterproof regardless of when you’re coming.

Winter (December–February)

Coldest months, typically 3–7°C, with the coast often a degree or two cooler and windier than inland. Rain, and occasionally snow or frost. Good for storm-watching from the coastal walks if you don’t mind the cold — the Atlantic puts on a real show.

Spring (March–May)

A gradual warm-up, roughly 7–13°C by May, with a genuine mix of sun and rain. Wildflowers and lighter evenings make this a good, quieter season to visit before the summer crowds.

Summer (June–August)

The warmest and driest stretch, typically 15–20°C, occasionally warmer. Long daylight hours — useful if you want to fit in a full day of sightseeing. Still bring a raincoat; a dry week isn’t guaranteed even in July.

Autumn (September–November)

Cooling back down, more rain and wind as the season goes on, but genuinely good light for photography and quieter beaches and attractions than summer.

Practical takeaway

There’s no month here where you can safely leave the raincoat at home, and no month where the weather rules out a visit either — this coastline works in any season, just dress for it.

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