Northern Ireland weather in September 2020

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 September. Select a destination to see more weather parameters.

More destinations >>

  • 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 September 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.

Recommended for Northern Ireland

  • Save on holiday cottages in Ireland in 2020/2021
  • Browse special offers on holiday cottages & holiday homes
  • Includes two week deals, discount offers & more

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
  • HomeAway
  • Love Home Swap

Northern Ireland cottages

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

  • Imagine Ireland
  • 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

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 holiday parks

Discover family holidays and short breaks at holiday parks, activity centres and seaside resorts in Northern Ireland with lots of activities, adventures and entertainment for all.

  • Hoseasons

Back to search

How warm is it in Northern Ireland in September?

Daytime temperatures usually reach 16°C in Belfast, Northern Ireland in September, falling to 9°C at night.

How sunny is it in Northern Ireland in September?

There are normally 4 hours of bright sunshine each day in Belfast, Northern Ireland in September - that's 30% of daylight hours.

How warm is the sea around Northern Ireland in September?

The average sea temperature around Belfast, Northern Ireland in September is 14°C.

Does it rain in Northern Ireland in September?

There are usually 17 days with some rain in Belfast, Northern Ireland in September and the average monthly rainfall is 94mm.

Northern Ireland sunrise & sunset times for September 2020

Browse the sunrise & sunset times for Northern Ireland in September 2020. 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
Tuesday, 1st September 2020 06:31 20:14
Tuesday, 15th September 2020 06:57 19:39
Wednesday, 30th September 2020 07:25 19:01
  • Browse latest special offers on UK cottage holidays
  • Filter deals by region, price, party size & features
  • Alternative search for cottages by specific travel dates

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.