May
- 2nd - 5th: Feile Chois Cuain, Louisburgh
- 9th - 11th: Clare Island Arts and Folklore Weekend
- 24th - 25th: Feile na Tuaithe in Rurlough Park
- from 30th: Achill Island Swim Festival
- from 30th: Castlebar Guinness Blues Festival
June
- until 2nd: Achill Island Swim Festival
- until 2nd: Castlebar Guinness Blues Festival
- 6th - 8th: Clare Island Singles Festival
- 18th - 22nd: 52nd Westport Sea Angling Festival
July
- 1st-6th: Connacht Fleadh, Westport
- 3rd-6th: Bard Summer School, Clare Island
- 3rd-6th: Castlebar International 4 Days' Walks Festival
- from 3rd: Trad Beo, Aras Inis Gluaire
- 5th-6th: Achill Marathon
- 11th-19th: Ballina Salmon Festival
- 18th-27th: Iorrais, Belmullet and Erris
- 20th: Clare Island Regatta
- 21st-27th: Scoil Acla, Achill Island
- 25th-28th: St. Colman's Garden Fete, Achill Island
- from 31st: Newport Grainne Uaile Festival
August
- until 3rd: Newport Grainne Uaile Festival
- until 14th: Trad Beo, Aras Inis Gluaire
- 2nd - 6th: Siamsa Sraide Street Festival, Swinford
- 9th - 10th: Inisbiggle Island Festival, Achill Island
- 10th - 17th: Belmullet Gala Festival
- 16th: Swinford Agricultural Show
- 22nd - 24th: Gael Force West Adventure Race and Festival, Westport Region
September
- 13th - 14th: Kite Surfing and Wavesailing Competition, Achill Island
- 20th - 21st: Shore Angling Competition, Achill Island
October
- 3rd - 12th: Westport Arts Festival
- 20th - 27th: Koolaboola Children's Arts Festival, Castlebar
December
- 31st: Last Sunset in Europe at Minaun Heights, Achill Island
- 31st: Pipe Band Parade through Villages at Midnight, Achill Island
