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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.
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
Cairnryan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cairnryan - and find the best time to visit.
Best Places in the United Kingdom in September
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
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.
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Cycling5/10 -
Walking5/10 -
Camping6/10 -
Outdoor sports9/10
Cairnryan 3-Day Forecast
More climate data for Cairnryan
See the full Cairnryan climate overview or explore weather in the United Kingdom.
Popular in September
Where to go in September - average daytime high across popular destinations.
London
20°C (68°F) Bath19°C (66°F) Torquay19°C (66°F) Manchester
18°C (64°F) York19°C (66°F) Edinburgh17°C (63°F) Blackpool17°C (63°F) Glasgow17°C (63°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Hike the South West Coast Path
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