Belfast weather in September (Antrim County, United Kingdom)
Looking to travel to Belfast in September? This guide provides all the details you need.
In September, Belfast generally has moderate temperatures and moderate rainfall. September falls within the summer season. Anticipate daytime temperatures around 17°C, while night temperatures can drop to 11°C.
Belfast in September usually receives moderate rainfall, averaging around 83 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 17 days of the month will see rainfall.
The area experiences a moderate amount of sunshine, with approximately 109 hours of sunlight expected. This makes it neither too gloomy nor overly bright.
In case you lean more towards enjoying temperate temperatures and rain-free days July and August typically offer the most optimal weather. In contrast, January, February, March and December tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Belfast climate page with graphs.
Belfast, monthly averages in September
Where to go in the United Kingdom in September
Find out more about the weather in the United Kingdom in September and which places have the best weather conditions in this month.
So, what should you wear in Belfast in September?
For visitors traveling to Belfast, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes. With a water temperature of around 13°C there is no need to bring your swimwear.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Belfast.
Our site offers climate and forecast data for every country in the world. Are you going to the United Kingdom? On this website you can find historical weather averages for many cities in the United Kingdom. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.