Cork tends to have a mild damp climate year round. As a general rule of thumb it is colder, wetter and windier from October to the end of March with a slight risk of snow in January. From April to September weather improves and is milder and dryer. Because of our location as a country and our exposure to Atlantic weather systems, we suffer very few weather extremes.
If it's not sunny when you get to Cork locals might say "you brought the bad weather with you!". And they'll be only half-joking!
In fact because of the changeability of our weather where you can get ‘four seasons in a day’, it is widely accepted as the most common conversation opener amongst people.... 'tis a soft day, Thank God".
For regularly updated information visit www.meteireann.ie
In particular their rain radar can give you advance warning of wet spells