Coleraine Weather in September

September in Coleraine brings moderate temperatures around 16°C (61°F) during the day, dropping to 11°C (52°F) at night, with quite a bit of rainfall expected, averaging around 102 mm (4 in) for the month.

Rainfall in Coleraine in September

You can expect rain on roughly 20 days based on historical data, averaging 102 mm (4 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 Coleraine in September

September in Coleraine brings moderate temperatures, with highs of 16°C (61°F) and nights around 11°C (52°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to around 11°C (52°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 Coleraine in September

The area experiences a moderate amount of sunshine, with approximately 118 hours of sunlight expected. This means a decent mix of sun and overcast.

Should you favor a climate that's both dry and comfortably warm, June typically offers 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.

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 Coleraine's climate page.

Coleraine Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 68%  

Precipitation 102 mm (4 in)  

Rainy days 20 days  

Sunshine 118 hours *  

Percentage Sunshine *  

* Data from: Derry, Ireland (43 KM, 26 Miles).

What to Wear in Coleraine in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Coleraine 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 Coleraine's climate page.

More climate data for Coleraine

Temperature Rainfall Sunshine

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