Northern Ireland weather in August 2021

Get the latest coronavirus (COVID-19) updates for the UK with current travel advice, statistics and online resources.

Below are average maximum temperatures at popular destinations in Northern Ireland in August. Select a destination to see more weather parameters.

More destinations >>

Recommended for Northern Ireland

  • Top deals & discounts
  • Northern Ireland weather overview
  • Northern Ireland climate averages by month
  • More destinations
  • Best time to go to Northern Ireland
  • Northern Ireland 5-day weather forecast

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The August weather guide for Northern Ireland shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

  • Save EXTRA 10% on ALL Q-Park car parks in the UK
  • Choose from 70 Q-Park car parks in 25 towns & cities
  • Discount cannot be combined with cashback
Show discount codeShow discount code ******0CT

Expires at 23:59 on Thursday 9th Sep 2021 · View all Q-Park offers

Northern Ireland holiday rentals

Find holiday rentals in Northern Ireland including holiday homes, self-catering accommodation, B&Bs, shared space, home swaps and short-term lets.

  • Airbnb
  • VRBO

Northern Ireland cottages

Search for holiday cottages in Northern Ireland including contemporary and traditional self-catering accommodation.

  • Stays Cottage Holidays

Northern Ireland hotels

Compare prices for hotels in Northern Ireland by booking directly with hotel chains and independent hotels or via online travel agencies and hotel comparison websites.

  • Booking.com
  • IHG
  • Priceline

Northern Ireland camping & hostels

Looking for camping holidays in Northern Ireland? Browse hostels and campsites for camping, glamping, yurts, cabins, tree houses, youth hostels and caravan parks.

  • Campsited
  • Hostel World

Northern Ireland car hire

Need to hire a car for Northern Ireland? Check out the car hire companies and brokers offering car rentals for Northern Ireland.

  • Avis
  • Europcar
  • Hertz

Back to search

How hot is it in Northern Ireland in August?

Daytime temperatures usually reach 18°C in Belfast, Northern Ireland in August, falling to 11°C at night.

How sunny is it in Northern Ireland in August?

There are normally 5 hours of bright sunshine each day in Belfast, Northern Ireland in August - that's 32% of daylight hours.

How warm is the sea around Northern Ireland in August?

The average sea temperature around Belfast, Northern Ireland in August is 13°C.

Does it rain in Northern Ireland in August?

There are usually 17 days with some rain in Belfast, Northern Ireland in August and the average monthly rainfall is 89mm.

Northern Ireland sunrise & sunset times for August 2021

Browse the sunrise & sunset times for Northern Ireland in August 2021. Select a month to view Northern Ireland sunrise & sunset times for the next twelve months. The Northern Ireland sunrise & sunset times shown below are for Belfast.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st August 2021 05:35 21:24
Monday, 16th August 2021 06:02 20:53
Tuesday, 31st August 2021 06:29 20:17
  • Save on hotels, restaurants, spas & more with Travelzoo
  • Book online with fully refundable vouchers
  • Filter vouchers by theme, price, type & more

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More Northern Ireland destinations

More destinations & map >>

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.