Greencastle Weather in December

December in Greencastle sees daytime temperatures around 9°C (48°F) and lows of 3°C (37°F) at night. With around 95 mm (3.7 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Greencastle in December

The climate data from previous years indicates about 22 days of rain, averaging 95 mm (3.7 in) for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Greencastle in December

Expect highs of 9°C (48°F) in Greencastle in December, with nights dropping to around 3°C (37°F). December marks the winter season. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Greencastle in December

The month is characterized by fewer sunny days, with roughly 39 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June and July typically offer the best weather for Greencastle.

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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 Greencastle's climate page.

Greencastle Temperature in December

Min Temperature 3°C (37°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 73%  

Precipitation 95 mm (3.7 in)  

Rainy days 22 days  

Sunshine 39 hours *  

Percentage Sunshine *  

* Data from: Derry, Ireland (38 KM, 23 Miles).

What to Wear in Greencastle in December

We recommend to layer up for chilly conditions in Greencastle in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Greencastle in December

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

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

4/10

Outdoor sports

4/10

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 Greencastle's climate page.

More climate data for Greencastle

Temperature Rainfall Sunshine

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