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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Ballycastle's climate page.
Ballycastle Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
17°C (63°F)
Chance of Rain
72%
Precipitation
116 mm (4.6 in)
Rainy days
22 days
Humidity
78% *
Sunshine
118 hours *
Percentage Sunshine
31% *
Best Places in Ireland in September
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Ballycastle in September
For Ballycastle in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Ballycastle in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Ballycastle's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ballycastle climate overview or explore weather in Ireland.
