Home / Editor's Pick /

Wild weather: Why does summer bring thunderstorms?

08:05
12 May 2023

Wild weather
Why does summer bring thunderstorms?

Bolts of lightning over seaThis electrifying shot is a composite image of the many lightning bolts captured by a user in Caister-on-Sea. - © Richard Lay

A week of thunderstorms across the UK and Ireland delivered heavy rain and lightning, do you know why they are more common as we approach summer?

Before we explore further, we need to understand what causes thunderstorms to begin with. Check out our Weather Explained video below:

As mentioned in our explainer, thunderstorms are more common in summer because the weather helps to fuel their development.

Most important to a thunderstorm are: rising warm air and humidity. Therefore, the more humid the country, the bigger the storms in summer.

Thunderstorms can bring hazardous conditions for all of us. Check the situation near you on the WeatherRadar, and as storms hit, watch lightning strikes as they happen on the LightningRadar.

This week's stormsread more

We'll be bringing you helpful tips and safety measures for thunderstorms as they hit this summer season.

Ryan Hathaway
More on the topic
The map shows the strength of the wind over the Atlantic. A tropical storm over the open sea, not yet threatening any land.
Thursday 18 September 2025

Quiet hurricane season

Atlantic: Tropical Storm Gabrielle on its way
Weather map showing low pressure over Iceland and jet stream over Europe.
Thursday 11 September 2025

Over the coming days

Jet stream brings unsettled weather
Split weather map of the UK and Ireland highlighting strong winds on Monday, 15 September. The left side shows gust speeds, with 55 mph around Dublin and Liverpool, and 45 mph near Cardiff and London, linked to a low-pressure system over the North Sea. The right side shows wind warning levels, with yellow (level 1) across much of England, Wales, and Northern Ireland, and orange (level 2) in western Ireland and parts of western Wales. A wind warning symbol is displayed in the centre.
Sunday 14 September 2025

Gales again

Continued warnings to start the week
All weather news
This might also interest you
Friday 15 August 2025

Breakfast brief

Split with cooler north, hot south
Weather map showing a split in north-south conditions of the UK. Scotland sees widespread cloud cover while England and Wales have clear skies.
Friday 15 August 2025

Clouds on the move

North-south split in conditions
Sunday 17 August 2025

Your weather - Your shots

Summer shots from a warm week
All articles
Weather & Radar

www.weatherandradar.ie

facebooktwitteryouTubeContact uslinkList
Privacy Policy | Legal info | Accessibility statement