Greencastle Weather in May

May in Greencastle brings moderate temperatures around 13°C (55°F) during the day, dropping to 9°C (48°F) at night, with the driest conditions of the year.

Rainfall in Greencastle in May

As the driest month, it's a good time for hiking and exploring the area, even if you'll need to layer up. Typically, about 18 days will experience rainfall, with an average of 86 mm (3.4 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Greencastle in May

Daytime temperatures in Greencastle reach 13°C (55°F) in May, dropping to 9°C (48°F) at night. Conditions are often most pleasant around the middle of the day. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Greencastle in May

There are approximately 203 hours of sunshine this month, resulting in mostly clear days. Despite the cool temperatures, the sunshine makes it an enjoyable time to be outside.

If your ideal day consists of dry skies and pleasant temperatures, April, May, June, July, August, September and October typically offer the best circumstances for Greencastle.

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 May

Min Temperature 9°C (48°F)  

Max Temperature 13°C (55°F)  

Chance of Rain 58%  

Precipitation 86 mm (3.4 in)  

Rainy days 18 days  

Sunshine 203 hours *  

Percentage Sunshine *  

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

What to Wear in Greencastle in May

Pack for changing conditions in Greencastle in May. 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Greencastle in May

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

Swimming

4/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

6/10

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.