Best time to visit Northern Ireland

Q: When is the best time to visit Northern Ireland?

The best time to visit Northern Ireland (Belfast) is May and June based on the following average weather conditions. Daily hours of sunshine = 10 hours or more.

Q: Which is the hottest month in Northern Ireland?

The hottest time of year in Belfast, Northern Ireland is normally July. Expect maximum daytime temperatures to reach 18°C.

Q: Which month has the most rain in Northern Ireland?

In terms of rainfall, January is usually the wettest month in Belfast, Northern Ireland with 101mm on average. There are normally 20 days in January with some rain.

Q: When is it sunniest in Northern Ireland?

The sunniest time of year in Belfast, Northern Ireland is normally May with bright sunshine on average for 37% of daylight hours; that's 6 hours of sunshine per day.

Q: When is the sea warmest in Northern Ireland?

The sea is usually at its warmest in Belfast, Northern Ireland in September when the water temperature reaches 14°C.

Find the best time to visit Northern Ireland and plan your perfect trip in 2024/2025. Get holiday inspiration, weather guides, travel advice and find great deals.

Northern Ireland by month

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

Recommended for Northern Ireland

Rural Retreats: Sea view holiday cottages in the UK

Sale

Browse cottages in Cornwall, Devon, Wales & more
Enjoy breathtaking views from your cottage
Filter search by selecting holiday preferences

Go to Rural Retreats deal >>

View all Rural Retreats offers

Top Northern Ireland destinations

Below are the temperatures expected today at popular countries, regions and places in Northern Ireland. Select a destination to compare today's forecast with average weather conditions.

4
Belfast
4
Londonderry

All Northern Ireland destinations

When is the best time to visit Northern Ireland?

The best time to visit Northern Ireland (Belfast) is May and June based on the following average weather conditions.

Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0
Feb
0
Mar
1.5
Apr
2.5
May
2.5
Jun
1.5
Jul
1.5
Aug
0.5
Sep
0
Oct
0
Nov
0
Dec

Change criteria

Hours of Sunshine (daily)

2
Jan
2
Feb
3
Mar
5
Apr
6
May
6
Jun
5
Jul
5
Aug
4
Sep
3
Oct
2
Nov
1
Dec

Which is the hottest month in Northern Ireland?

The hottest time of year in Belfast, Northern Ireland is normally July. Expect maximum daytime temperatures to reach 18°C.

Which month has the most rain in Northern Ireland?

In terms of rainfall, January is usually the wettest month in Belfast, Northern Ireland with 101mm on average. There are normally 20 days in January with some rain.

When is it sunniest in Northern Ireland?

The sunniest time of year in Belfast, Northern Ireland is normally May with bright sunshine on average for 37% of daylight hours; that's 6 hours of sunshine per day.

When is the sea warmest in Northern Ireland?

The sea is usually at its warmest in Belfast, Northern Ireland in September when the water temperature reaches 14°C.

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Northern Ireland (Belfast) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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