Ballycastle Weather in September

Ballycastle in September sees moderate temperatures, with highs around 16°C (61°F) and overnight lows of 12°C (54°F). Rainfall is fairly high at around 105 mm (4.1 in) on average, so pack waterproofs just in case.

Rainfall in Ballycastle in September

Historically, approximately 20 days this month are expected to have rain, averaging 105 mm (4.1 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Ballycastle in September

September in Ballycastle brings moderate temperatures, with highs of 16°C (61°F) and nights around 12°C (54°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Ballycastle in September

The month brings about 109 hours of sunlight, offering a comfortable mix of sun and overcast.

If you prefer enjoying temperate temperatures and rain-free days, June and July typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.