Co. Dublin weather

Our guide to the weather in Co. Dublin during May

13

Average high

4

UV Index

74mm

Monthly rainfall

83%

Humidity

We've looked at the most up-to-date weather data for Co. Dublin, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Co. Dublin weather in May.

What's the temperature like in Co. Dublin during May?

The temperature reaches around 13℃ during the daytime in May, falling away to 8℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Co. Dublin during May?

On average, there will be 6 rainy days during the month, amounting to 73.6mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Co. Dublin during May?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during May. With moderate air temperatures, any breeze will feel cool.

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Co. Dublin Blog posts

From the Ireland's most popular travel bloggers

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7 Luxury Dublin Hotels That Are Worth the Splurge

13th March 2023 by Eat Sleep Breathe Travel

Treating yourself to a luxurious stay in Dublin? The Merrion Hotel is a great option, offering beautiful rooms with amazing service and all the little extras that make a vacation special. For a few days of indulgence, these luxury Dublin hotels are sure to make your trip unforgettable....

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The Ultimate Dublin Itinerary: 1, 2, and 3 Day Guides to Dublin

13th March 2023 by Eat Sleep Breathe Travel

It is impossible to visit Ireland without dedicating at least one or two days to exploring the captivating city of Dublin. From its stunning architecture to its plethora of museums, parks and pubs, Dublin has something to offer everyone. With so much to see and do, it can be difficult to decide how to make the most of your time in the city....

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Dublin in Winter – Unique places to explore

18th November 2022 by Journalist On The Run

Usually, when planning a trip, the preferred time to visit Ireland is in the Summer. Despite the rain, the locals are always friendly, and it’s an off-tourist season, so seeing attractions is much easier… Winter in Dublin also makes for a significantly more affordable trip with fewer tourists and a more relaxing atmosphere. Make sure to dress warmly and bring an extra beanie to enjoy everything Ireland offers in the winter....

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The best pubs in Dublin - According to locals!

11th February 2022 by Eat Sleep Breathe Travel

Ireland is my home away from home and holds a special place in my heart and while Galway, which is where I lived, will always be my number 1 I do have a soft spot for Dublin as well. Yes it’s busier and more expensive but its a really great city to explore and has some fantastic pubs to grab a pint, a meal, or just to hang out and escape the rain. In this post, I’m going to share some of the best pubs in Dublin. ...

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Ticknock Fairy Castle Hike | Hiking the Dublin Mountains

17th May 2021 by Borders And Beyond

Want to go on a hike in the Dublin Mountains? Ticknock is the place to go. Ireland is finally opening back up and we have decided to see as much of it as possible over the next few months. First stop, Fairy castle loop hike in Ticknock. Ticknock is in the Dublin Mountains and is a hugely popular place for walking, hiking and Biking. It has a really good Mountain Biking Trail and there you can even rent bikes at Biking.ie in the Car......

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Sunrise swim at the Vico Baths in Dalkey

25th April 2021 by Borders And Beyond

Sunrise Swim at the Vico Baths in Dalkey - the best sunrise swim spot in Dublin. On the last week of Irelands 5km Lockdown we decided to get up at the crack of dawn (literally) and go for a Sunrise swim in the Vico Baths in Dalkey. The Vico Baths are one of the most best swimming spots in all of Dublin, and especially popular for a people going for a sunrise dip. We are so lucky to have had it in our 5km during lockdown. If you plan on braving the cold and going for a sunrise swim, we...

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Dublin airport tips, tricks and hacks

16th August 2019 by Where is Tara?

Airports can be stressful at the best of times. However, we’ve put together all of our best Dublin Airport tips and tricks to make your airport experience as smooth and enjoyable as possible....

Weather in Co. Dublin

Our month-by-month guide to the weather and climate in Co. Dublin

7.6

Co. Dublin weather in

January
7.9

Co. Dublin weather in

February
9.0

Co. Dublin weather in

March
10.4

Co. Dublin weather in

April
12.8

Co. Dublin weather in

May
15.4

Co. Dublin weather in

June
17.2

Co. Dublin weather in

July
17.1

Co. Dublin weather in

August
15.7

Co. Dublin weather in

September
13.5

Co. Dublin weather in

October
10.4

Co. Dublin weather in

November
8.2

Co. Dublin weather in

December