Climate almanac
Ballycastle
Northern Ireland, United Kingdom · 55.20°, -6.24°
What is the weather like in Ballycastle in September?
In September, Ballycastle is typically 58°F (15°C) during the day and 55°F (13°C) at night. The month brings about 4.7 in (120 mm) of precipitation in total.
- Average high58°F (15°C)
- Average low55°F (13°C)
- Precipitation4.7 in (120 mm)
- Clear or mostly clear days3
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)