Cairnryan Weather in September

September in Cairnryan brings moderate temperatures, with daytime highs of 16°C (61°F) and nights around 12°C (54°F). Quite a bit of rainfall is expected, around 108 mm (4.3 in), so pack an umbrella.

Rainfall in Cairnryan in September

Past climate data indicates that roughly 19 days will see rain, totalling around 108 mm (4.3 in) for the month. 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 Cairnryan in September

September in Cairnryan sees highs of 16°C (61°F) and lows of 12°C (54°F) overnight. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

If you prefer dry days with pleasant temperatures, 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 Cairnryan's climate page.

Cairnryan Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 65%  

Precipitation 108 mm (4.3 in)  

Rainy days 19 days  

What to Wear in Cairnryan in September

Pack for changing conditions in Cairnryan in September. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Cairnryan in September

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

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 Cairnryan's climate page.

More climate data for Cairnryan

Temperature Rainfall

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