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.

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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Ballycastle's climate page.

Ballycastle Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 68%  

Precipitation 105 mm (4.1 in)  

Rainy days 20 days  

Humidity 91% *  

Sunshine 109 hours *  

Percentage Sunshine 28% *  

* Data from: Belfast, Ireland (61 KM, 38 Miles).

What to Wear in Ballycastle in September

The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Ballycastle in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Ballycastle's climate page.

More climate data for Ballycastle

Temperature Rainfall Sunshine Humidity

See the full Ballycastle climate overview or explore weather in the United Kingdom.