Ireland Set for Warmest April Days in Years as Temperatures to Hit 21 Degrees
Ireland is set to enjoy some of the warmest April weather in years, with Met Éireann forecasting temperatures of up to 21 degrees Celsius by Friday as a dominant high-pressure system brings settled, sunny conditions across the island — a dramatic departure from the seasonal average of around 8.6°C.
The warm spell, forecast for the latter part of the week, will be a welcome boost for the public and for outdoor businesses after a mixed start to spring. Counties Roscommon, Sligo, and Mayo are expected to record the highest temperatures, though the sunshine will be widespread, with Dublin and eastern areas also enjoying the fine conditions.
Background
April weather in Ireland is typically changeable, with a mix of sunshine and showers and average temperatures hovering around 8.6°C. The forecast for temperatures reaching 21 degrees represents a significant departure from the seasonal norm and would make this one of the warmest April periods in recent memory. For context, April 2025 was recorded as the third warmest April on record in Ireland, and the 2026 warm spell looks set to rival or surpass that benchmark.
Met Éireann, the Irish national meteorological service, has been tracking the development of a high-pressure system that is expected to bring the warm, settled conditions. The service has issued small craft warnings for all Irish coasts due to easterly winds veering southeasterly, a reminder that even in fine weather, conditions at sea can be hazardous.
Ireland's temperate oceanic climate is characterised by mild, wet, and changeable weather throughout the year. Warm, settled spells in April are not unheard of, but they are relatively rare, and when they do occur, they tend to generate significant public interest and a surge in outdoor activity across the island.
Key Developments
Met Éireann's forecast, published on Tuesday, 21 April, indicates that high pressure will largely dominate through the latter part of the week, bringing sunshine and above-average temperatures. The warmest conditions are expected on Friday, with highs of up to 21 degrees possible in sheltered inland areas across Connacht and the midlands.
The warm weather is expected to be welcomed by the hospitality and tourism sectors, which have been hoping for a strong spring season. Outdoor venues, parks, and coastal areas are likely to see significant footfall as people take advantage of the sunshine. Businesses with outdoor seating reported brisk trade during the warm spell, and coastal destinations saw a notable uptick in visitors.
The fine conditions are also expected to benefit agricultural communities, providing a welcome window for outdoor work after a wet start to the year. Farmers across the midlands and west have been waiting for a sustained dry spell to carry out essential fieldwork.
Why It Matters
Warm, settled weather in late April provides a significant psychological and economic boost to communities across Ireland. After a challenging period for many sectors of the Irish economy, the prospect of a warm, sunny end to April is a genuinely welcome development. The hospitality sector in particular — still recovering from the pressures of recent years — stands to benefit considerably from a surge in outdoor dining and leisure activity.
From a climate perspective, events like the April 2026 warm spell are becoming more frequent, consistent with the broader trend of rising global temperatures. While a single weather event cannot be solely attributed to climate change, researchers at Queen's University Belfast have highlighted that Ireland and Northern Ireland are already experiencing the effects of a changing climate, with warmer temperatures and more erratic rainfall patterns becoming increasingly common. The warm spell is a reminder of both the pleasures and the complexities of Ireland's evolving climate.
Local Impact
In Belfast and across Northern Ireland, the warm spell is equally welcome, with temperatures expected to reach up to 20°C — well above the seasonal average for the north. The Met Office forecast for Northern Ireland indicates dry and warm conditions, with a cooler onshore breeze along the east coast providing some relief. Belfast's parks, the Botanic Gardens, and the Lagan towpath are expected to be busy as residents make the most of the fine weather.
For the tourism sector in Northern Ireland, the timing is particularly fortuitous, coinciding with the spring bank holiday period and a busy time for visitors to the Giant's Causeway, the Causeway Coastal Route, and the Mourne Mountains. Local hospitality businesses are anticipating one of their busiest weekends of the year.
What's Next
Met Éireann will continue to update its forecasts as the high-pressure system develops. The warm spell is expected to persist into the weekend before more changeable conditions return early the following week. The full forecast is available at The Irish Times, with further climate context available from Met Éireann's climate statements.
