Greencastle Weather in December
During December, Greencastle experiences low daytime temperatures of 10°C (50°F) and cooler nights around 6°C (43°F). Expect quite a bit of rainfall. Around 147 mm (5.8 in) is typical.
Rainfall in Greencastle in December
Based on our climate data of the past 30 years, about 23 days of rain are anticipated, with 147 mm (5.8 in) on average. 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 Greencastle in December
Greencastle in December gets highs of 10°C (50°F) during the day and drops to 6°C (43°F) at night. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Greencastle in December
The area sees fewer sunny days, with a projection of about 39 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.December in Greencastle has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Greencastle's climate page.
Greencastle Temperature in December
Min Temperature
6°C (43°F)
Max Temperature
10°C (50°F)
Chance of Rain
76%
Precipitation
147 mm (5.8 in)
Rainy days
23 days
Sunshine
39 hours *
Percentage Sunshine
*
Best Places in Ireland in December
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in December →
perfect weather
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tolerable
unpleasant
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What to Wear in Greencastle in December
Dress warmly and in layers for your trip to Greencastle in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Greencastle in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Greencastle's climate page.
See the full Greencastle climate overview or explore weather in Ireland.
