Greencastle Weather in January

January in Greencastle brings low temperatures around 9°C (48°F) during the day, dropping to 5°C (41°F) at night, with quite a bit of rainfall expected, averaging around 130 mm (5.1 in) for the month.

Rainfall in Greencastle in January

Typically, you can expect about 23 days of rain this month, with 130 mm (5.1 in) on average. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Greencastle in January

Expect highs of 9°C (48°F) in Greencastle in January, with nights dropping to around 5°C (41°F). Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. At 5°C (41°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Greencastle in January

This month is characterized by fewer sunny days, with about 50 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Greencastle. Our weather planner can help you explore destinations with more pleasant weather conditions.

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 Ireland, check out our Greencastle's climate page.

Greencastle Temperature in January

Min Temperature 5°C (41°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 76%  

Precipitation 130 mm (5.1 in)  

Rainy days 23 days  

Sunshine 50 hours *  

Percentage Sunshine *  

* Data from: Derry, Ireland (31 KM, 19 Miles).

What to Wear in Greencastle in January

Cold weather calls for smart layering in January. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Greencastle in January

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

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

3/10

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 Ireland, 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 Ireland.