Belfast Weather in September

Cool, with some rainy days. Average highs of 16°C and lows of 11°C, with around 13 rainy days expected throughout the month.

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

Average high

16°C

Average low

11°C

Rainy days

13 days

Best months to visit

Year-round

What to do in Belfast in September

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

Tour the Titanic Belfast museum Walk the political murals of West Belfast with a guide Explore the Cathedral Quarter's galleries and street art Visit the Botanic Gardens and museum Take the train to Carrickfergus Castle Browse independent shops and vintage clothing stores

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.