Belfast weather

Our guide to the weather in Belfast during May

14

Average high

3

UV Index

97mm

Monthly rainfall

83%

Humidity

We've looked at the most up-to-date weather data for Belfast, 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 Belfast weather in May.

What's the temperature like in Belfast during May?

The temperature reaches around 14℃ during the daytime in May, falling away to 7℃ 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 Belfast during May?

On average, there will be 8 rainy days during the month, amounting to 97.3mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Belfast 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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Belfast Blog posts

From the UK's most popular travel bloggers

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Experience Belfast in 60 Seconds

2nd January 2024 by Phil and Garth

Experience a flavour of Belfast, Northern Ireland in our quick 60 second video. For our comprehensive weekend guide to Belfast check out the post on our travel blog...

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7 UK Cities Well Worth the Visit

28th March 2023 by Tin Box Traveller

If you're looking to explore the UK's most noteworthy destinations, why not add these seven cities to your bucket list? From the vibrant city of London to the picturesque Scottish Highlands, there's something for everyone to enjoy....

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A Titanic stay in Belfast’s most unique boutique hotel

20th July 2022 by Phil and Garth

Looking for luxury hotels in Belfast, Northern Ireland? We’ve got you covered in this post, as we share our experience of staying at the glamorous Titanic Hotel Belfast. Located in the building where Titanic was designed and next door to where Titanic was built. It’s the perfect place for a heritage stay and added sparkle for a long weekend visit to Belfast as we did. Watch the video above to experience staying at the world’s most authentic Titanic hotel in 60 seconds. Or keep reading to...

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Experience the Titanic Hotel Belfast in 60 seconds

19th July 2022 by Phil and Garth

A taste of the luxurious Titanic Hotel Belfast, located in the Titanic Quarter, Northern Ireland....

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13 best things to do in Belfast, Northern Ireland

9th February 2021 by Hand Luggage Only

Being the largest city in Northern Ireland, Belfast has a lot going for it! With Michelin Star restaurants, cool museums and loads of the best things to do in Belfast, it’s the kind of city which is great for a long weekend break. Trust me when I say, Belfast is one of those places that’s great to visit....

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What to do In Belfast: Exploring the city in a day

14th August 2019 by Twins that Travel

A city that was in the grips of a civil war just 40 years ago, Belfast is a destination that has undergone a dazzling transformation. Once the industrial hub that built and launched the ill-fated Titanic, Belfast has since blossomed into a vibrant and fun city. It’s a place where students, locals and tourists gather for evenings of live music, dancing and socialising, and sleek new museums dwarf the city’s skyline....

Weather in Belfast

Our month-by-month guide to the weather and climate in Belfast

6.6

Belfast weather in

January
7.3

Belfast weather in

February
8.9

Belfast weather in

March
11.0

Belfast weather in

April
13.5

Belfast weather in

May
16.3

Belfast weather in

June
17.6

Belfast weather in

July
17.1

Belfast weather in

August
15.5

Belfast weather in

September
12.8

Belfast weather in

October
9.5

Belfast weather in

November
7.1

Belfast weather in

December