Connemara Detailed Forecast for Sun 17 May 2026

A miserable day across Connemara with persistent rain, particularly heavy at times during the morning and early afternoon. Dense overcast skies will dominate throughout with very poor visibility in places due to low cloud and hill fog. Temperatures will struggle, reaching only 8-12C in the west and 10-15C further east, feeling colder still in the brisk westerly winds gusting 38-44 kph. The rain will turn lighter and more intermittent during the evening as winds ease slightly, but conditions will remain thoroughly damp with extensive mist and fog patches developing overnight.

Total rainfall accumulations of 10-20mm are expected across western coastal areas, with 20-32mm possible in the most exposed locations. Eastern parts may see slightly lower totals of 7-13mm. The combination of persistent rain, low cloud, hill fog, and fresh to strong westerly winds will make for very unpleasant conditions, particularly for those engaged in outdoor activities. Some brief drier interludes are possible during the afternoon, but any breaks will be short-lived.

00-06: Dense overcast with rain becoming heavy at times, extensive hill fog, temperatures 6-9C, fresh to strong west-northwest winds 25-28 kph gusting 38-41 kph.
07-12: Continued dense overcast with moderate to heavy rain, persistent drizzle between heavier bursts, temperatures rising slowly to 8-11C, strong west-northwest winds 26-29 kph gusting 38-43 kph.
13-18: Dense overcast with rain turning lighter and more showery, some brief drier intervals possible, temperatures reaching 8-12C in west to 13-15C in east, winds easing slightly 23-28 kph gusting 35-42 kph.
19-00: Mostly to partly cloudy with rain becoming occasional light rain or drizzle, developing mist and fog patches, temperatures falling to 7-11C, winds easing further 12-20 kph gusting 27-33 kph.

Cleggan: Dense overcast throughout. Heavy rain morning and early afternoon becoming lighter later. Extensive mist and fog developing evening. High 10C. West-northwest winds 26 kph gusting to 41 kph easing later. Total rainfall 15-20mm.
Clifden: Dense overcast with heavy rain morning becoming lighter showers afternoon. Hill fog persistent. Evening mist and fog patches. High 8-10C. West-northwest 26-27 kph gusting 38-40 kph. Rainfall 20mm.
Glinsce: Dense overcast with persistent rain, heavy at times during morning. Light to moderate fog developing evening. High 10C. West-northwest winds 27 kph gusting 40 kph easing to 15 kph by evening. Rainfall 20-32mm.
Kylemore: Dense overcast with rain, heavy during morning hours. Extensive hill fog. Temperatures reaching 10-11C. West-northwest winds 24-26 kph gusting 38-40 kph. Evening mist and fog. Rainfall 10-15mm.
Leenane: Dense overcast. Heavy rain morning and midday becoming lighter afternoon. Persistent hill fog. High 10C. West-northwest 27-28 kph gusting to 40 kph. Evening fog patches. Rainfall 20mm.
Letterfrack: Dense overcast all day. Rain heavy morning and afternoon, lighter evening. Extensive mist and fog. High 11C. West-northwest 26-28 kph gusting 40-41 kph decreasing to 14-16 kph evening. Rainfall 20-31mm.
Oughterard: Dense overcast. Rain likely morning becoming occasional showers afternoon. Light to moderate fog developing evening. High 12C

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