December–February
Winter: frontal showers
Cold air crossing relatively mild water can support squally showers and occasional thunder. In Ireland, watch exposed coasts and moving fronts; widespread strong wind does not necessarily involve lightning.
THE WEATHER, IN FOCUS
Ireland thunderstorm radar.
Follow the clouds. Read the radar. Understand the storm.
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Interactive mapDrag to explore
Precipitation maps may include short-term forecasts. Check the time. This is not lightning detection.About these maps
Check the timestamp inside the map. A blank map does not mean there is no storm.
THE DAYS AHEAD
Ireland: 7-day weather outlook.
A forecast for the selected place, not for all of Ireland. Days and charts use UTC. Today may cover only the remaining hours.
Thunderstorm guidance is incomplete: a day without a thunder symbol is not an all-clear. Use official warnings for safety decisions.
The forecast loads as you reach this section.
How to use this forecast
Weather symbols describe model guidance for a point. “Thunder signal” means at least one displayed forecast interval contains a thunder symbol or a positive thunder probability. “No thunder symbol” is not an all-clear: lightning probabilities are not supplied for every location or every day, and small storms can be missed.
Rain totals add non-overlapping forecast periods. Temperature ranges include supplied interval extremes and available point samples; wind is the highest sampled sustained wind, not a gust forecast. Later days have coarser time steps and greater uncertainty. Check official warnings and radar again before outdoor plans.
Explore daily humidity, dew point, cloud cover and sea-level pressure. Gusts, apparent temperature, clear-sky UV and period probabilities appear only when supplied. Clear-sky UV assumes no clouds; it is not a forecast of actual UV exposure. A pressure change alone cannot establish whether a storm will develop.
Forecast data, attribution & licences · Forecast methods and limitations.
FIND YOUR VIEW
Explore nearby countries
THE YEAR AT A GLANCE
Thunderstorm seasons in Ireland.
For thunderstorms in Ireland, distinguish Ireland's Atlantic-facing west, eastern lowlands and inland hills. These areas can have different moisture, temperatures and storm triggers on the same day.
Typical regional patterns, adapted to local geography. This is educational guidance, not a forecast for this year's seasons or a measured national lightning frequency.
December–FebruaryWinter: frontal showersMarch–MaySpring: inland contrastJune–AugustSummer: warm-air episodesSeptember–NovemberAutumn: sea and land differ
March–May
Spring: inland contrast
As the land warms, inland showers become more plausible. Cool maritime air can suppress development in one part of Ireland while colder air aloft helps showers grow elsewhere.
June–August
Summer: warm-air episodes
Warm, humid episodes can bring thunderstorms, sometimes arriving overnight from farther south. For Ireland, follow the actual radar loop: not every warm spell ends in thunder.
September–November
Autumn: sea and land differ
The sea retains warmth while the land cools. Coastal shower bands and active Atlantic fronts deserve attention in Ireland; showers may arrive after dark as well as during the day.
What to watch in Ireland
Zoom out to include United Kingdom, then follow the actual rain-band movement across successive frames. Borders do not stop weather systems.
Sources and scope · reviewed 25 September 2026
This country page combines the cool Atlantic maritime regional pattern with local geography. Timing shifts between years, elevations, islands and opposite sides of mountains. Rainy seasons do not automatically mean thunderstorms every day. The calendar is a reading aid, not a risk scale.
ZOOM OUT. FOLLOW THE LOOP. LOOK AHEAD.
What is heading towards Ireland?
Zoom out to include United Kingdom, then follow the actual rain-band movement across successive frames. Borders do not stop weather systems. Use the map’s minus button to widen the view; plus brings you closer. A larger view gives context, not extra radar resolution.
- 01
Find the wider pattern
Zoom out until the approaching rain bands and nearby sea or land are visible. Check the timestamp and whether the frames are observations or model forecasts.
- 02
Follow several frames
Play the provider’s animation. Compare the same rain band over successive frames: is it approaching, weakening, growing or developing repeatedly over one area?
- 03
Check the airflow
Cloud-level winds help steer storms. The wind shown in the daily forecast is near the ground and can differ. Fronts, mountains and new cell development can change the direction.
- 04
Update your plans
Radar helps with the next short period. Use the 7-day outlook for broader planning and check local official warnings. A clear radar image does not prove lightning is absent.
This is a method for reading the map, not an automatic prediction of storm arrival. The country radar remains the opening view; Compare maps adds a draggable map.
Learn about storm movementEUROPE
Following storms
in Ireland.
Which view should you use?
The page opens with rain radar to help you follow precipitation. Select Satellite for cloud imagery. These maps do not measure lightning strikes.
Check the area, not just the country name
The country view is a starting point. A large country or island territory may extend beyond the initial map. The country radar opens first. Choose Compare maps to add a second, draggable view alongside it (below it on smaller screens). Compare the timestamps and legends yourself; the maps are not synchronized and may share source data. Larger map expands the view. Missing data, especially away from radar stations, should not be interpreted as clear weather.
Find official weather warningsEXPLAINER · NOT LIVE WARNING STATUS
Ireland: warning levels
Met Éireann warning colours
Ireland uses yellow, orange and red. Northern Ireland uses the UK Met Office system.
Yellow
Localised danger
Pay attention to conditions affecting your activity.
Orange
Dangerous or disruptive
Prepare for less frequent, potentially disruptive weather.
Red
Extremely dangerous
Follow official protective instructions for exceptional conditions.
Read the hazard and valid period. Weather warnings and marine warnings are separate products.
Sources and scope
Agency-specific warning explanation. Source review: 25 September 2026.
These are explanations, not active alerts. Always check the official area, issue time, expiry and instructions. Hearing thunder is a reason to take shelter at any warning level.
A LITTLE KNOWLEDGE GOES A LONG WAY
Understand the storm.
STORM SAFETY
Stay safe in a thunderstorm
Practical lightning safety: choosing shelter, avoiding exposure and knowing when to go outside again.
Read guideAT HOME
When you are at home
Where to stay indoors during lightning, what to avoid and why a porch is not proper shelter.
Read guideON THE ROAD
Lightning and your car
How an enclosed metal-topped vehicle provides shelter, and why tyres are not the reason.
Read guide