This section takes into account daily clothing requirements only and not clothing required for special activites such as watersports etc. Cyclists and walkers may need a pair of waterproof over trousers. Jeans and denim jackets are usually not allowed in high class restaurants or nightclubs. For the main part of Winter bring sweaters and a warm insulated hooded and waterproof coat. For ladies trousers are more pratical than skirts.
Gloves are also advisable.
The main reason being that although temperatures do not drop that low, the wind and dampness can make it feel much colder than it actually is. Generally it is best to come prepared as it isn't fun to spend your holiday cash on a jacket etc., that you left at home. Ireland is one of the few countries including Great Britian and Japan that still drive on the left hand side of the road. This can be disconcerting for first time visitors, but with a little practice it is easily overcome. If you are used to driving an automatic, you should pre-book before departing for Ireland.