The Cliffs of Moher in County Clare dropping into the Atlantic under a bright sky
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Ireland by campervan: weather and best time

When to tour Ireland by campervan: temperatures, rainfall and the best season for each part of the country. What to know before you go.

Published 18 September 2026Last checked 18 September 2026

Weather

Weather

Ireland has no hot season, and planning a campervan trip here means accepting that rather than working around it. Across the seven stations Met Éireann publishes 1991 to 2020 normals for, the warmest month anywhere is July at Casement Aerodrome outside Dublin, at a mean daily maximum of 19.8 °C. The strip below has no hot band because the country does not produce one. What it does produce is wind, rain and light that changes every twenty minutes.

Heavy grey cloud over a bare brown headland and small islands on the Atlantic
The Atlantic edge under cloud. The green is not free, and this is what it costs

The year by region: how it feels, how warm, how wet

Cork and the south coastCork Airport
8°131 mm
9°97 mm
10°92 mm
12°87 mm
15°81 mm
17°83 mm
19°87 mm
18°95 mm
17°92 mm
13°131 mm
10°127 mm
9°137 mm
Kerry and the south westValentia Observatory
10°187 mm
10°137 mm
11°116 mm
12°108 mm
15°94 mm
17°101 mm
18°117 mm
18°114 mm
17°130 mm
14°173 mm
12°189 mm
10°179 mm
Clare and GalwayShannon Airport
9°104 mm
9°87 mm
11°76 mm
13°62 mm
16°63 mm
18°70 mm
20°76 mm
19°88 mm
18°77 mm
14°96 mm
11°107 mm
9°115 mm
Mayo and SligoBelmullet
9°137 mm
9°110 mm
11°91 mm
12°74 mm
15°71 mm
16°73 mm
18°86 mm
18°101 mm
17°103 mm
14°131 mm
11°140 mm
9°127 mm
Donegal and the north westMalin Head
8°119 mm
8°95 mm
9°81 mm
11°63 mm
13°65 mm
15°74 mm
17°86 mm
17°98 mm
16°95 mm
13°110 mm
11°122 mm
9°131 mm
Dublin, Wicklow and the eastDublin Airport
8°62 mm
9°52 mm
10°51 mm
12°55 mm
15°57 mm
18°64 mm
20°61 mm
19°73 mm
17°63 mm
14°78 mm
10°83 mm
8°72 mm

BestWorkableToo hotCold or wetTop figure: average daily high. Below it: average rainfall for the month.

Every figure in the strip is a Met Éireann 1991 to 2020 mean daily maximum and mean monthly rainfall total for the station named in the row, rounded to whole units. The band is our judgement about the region rather than a published figure, and July and August read lower than their temperatures on the west coast on purpose: they are the wettest summer months at Valentia and Belmullet and the busiest months on the road. The one row to look at twice is Dublin Airport against Valentia. They are 300 km apart and one gets more than twice the rain of the other.

Wind is the weather that matters to a van. Malin Head, Belmullet and Valentia all sit on exposed Atlantic headlands, and the coastal car parks with the best views are the ones with nothing between them and three thousand kilometres of ocean. A high-sided vehicle broadside to an Atlantic gale is unpleasant at best. Park nose into the wind and pick the sheltered side of the headland, even when the view is on the other one.