Greencastle Weather in May

With daytime temperatures of 15°C (59°F) and nighttime lows of 7°C (45°F), May in Greencastle brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 85 mm (3.3 in) falls on average.

Rainfall in Greencastle in May

Analyzing past climate data, one can expect approximately 18 days of rain, averaging 85 mm (3.3 in). Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Greencastle in May

If you're visiting Greencastle in May, expect highs of 15°C (59°F) and overnight lows around 7°C (45°F). The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Greencastle in May

With approximately 203 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you prefer enjoying temperate temperatures and rain-free days, June and July typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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.

Greencastle Temperature in May

Min Temperature 7°C (45°F)  

Max Temperature 15°C (59°F)  

Chance of Rain 61%  

Precipitation 85 mm (3.3 in)  

Rainy days 18 days  

Sunshine 203 hours *  

Percentage Sunshine *  

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

What to Wear in Greencastle in May

The weather can swing between comfortable and chilly in May, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Greencastle in May

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

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

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.