Ballycastle Weather in September

During September, Ballycastle experiences moderate daytime temperatures of 17°C (63°F) and cooler nights around 12°C (54°F). Expect quite a bit of rainfall. Around 116 mm (4.6 in) is typical.

Rainfall in Ballycastle in September

You can expect rain on roughly 22 days based on historical data, averaging 116 mm (4.6 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Ballycastle in September

Expect highs of 17°C (63°F) in Ballycastle in September, with nights dropping to around 12°C (54°F). Conditions are often most pleasant around the middle of the day. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Ballycastle in September

The area enjoys a moderate level of sunlight, with around 118 hours. It's a good balance between sunny and cloudy days.

Should you favor a climate that's both dry and comfortably warm, May and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.