Castlewellan weather
Our guide to the weather in Castlewellan during December
We've looked at the most up-to-date weather data for Castlewellan, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Castlewellan weather in December.
What's the temperature like in Castlewellan during December?
The temperature reaches around 8℃ during the daytime in December, falling away to 5℃ at night. The UV index will be low at this time of year, so not something to worry about. However, if you're going to be outside for long periods it's always a good idea to apply a small amount of sunscreen to exposed skin.
Does it snow in Castlewellan during December?
Possibly. There's a chance of snow during December but not as much as you might think. Check the local forecast before you leave home so that you can pack appropriate footwear and clothing.
Does it rain in Castlewellan during December?
On average, there will be 9 rainy days during the month, amounting to 99.4mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Castlewellan during December?
Expect moderate breeze becoming stronger at times during December, with occasional gusts up to 23mph. With cool air temperatures, any breeze will feel cold.
Weather in Castlewellan
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December