Dublin Weather in September

Cool, with some rainy days. Average highs of 17°C and lows of 11°C, with around 11 rainy days expected throughout the month.

While September isn't our top-rated month for Dublin, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.

Average high

17°C

Average low

11°C

Rainy days

11 days

Best months to visit

Year-round

What to do in Dublin in September

Whatever the weather, Dublin rewards curious visitors. Here are some of the best ways to spend your time:

Tour the Book of Kells at Trinity College Explore St Stephen's Green and Grafton Street Drink a Guinness at the Gravity Bar at the Guinness Storehouse Visit Kilmainham Gaol (Irish independence history) Walk along the Liffey and see Ha'penny Bridge Browse independent bookshops and pub culture

What to pack for September

Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.