Experts Forecast Warmer Spell and Sunny Spells for Ireland in Late May

Key facts

• A weather expert anticipates above-average temperatures across Ireland during the final two weeks of May.
• Met Éireann previously defined a heatwave as a period of five days exceeding 25°C.
• The coming weekend is predicted to be unsettled, featuring rain and showers on most days.
• Thursday will see thundery hail, followed by a dry night, and mixed spells of sun and showers on Friday.
• Sunday is expected to start largely dry before becoming cloudier with widespread showers developing from the west.
• Conditions are forecast to turn warmer towards Tuesday, accompanied by potential longer dry spells by the end of the working week.

Above-Average Heat Lingers Through Irish Late May

Weather prognostications suggest a reprieve from persistent rain, with conditions poised to warm up significantly as May concludes. While a definitive heatwave remains out of reach, experts anticipate a sustained rise to above-average temperatures across the country for the final fortnight of the month. The shift is welcomed as the June Bank Holiday approaches. Although the definition of a heatwave, as specified by Met Éireann, requires a five-day period exceeding 25°C, the prospect of increased warmth is viewed with enthusiasm by residents. Specific forecasts for the coming week show a sequence of unsettled weather, but promise improvement toward the latter half of May, offering relief from the recent rainfall.

A Week of Mixed Conditions and Thunderstorm Risks

The immediate forecast suggests a highly variable week. Initially, the national forecaster predicts daily rainfall and showers for the approaching seven-day period, keeping the coming weekend unsettled. Details for the middle of the week point toward distinct changes. Thursday carries a warning for thundery hail, though the night following remains dry, setting the stage for a mix of sunny periods and scattered showers on Friday. Saturday is marked by more persistent rain, moving progressively from the west and southwest, before gradually spreading eastward across the island. However, by the evening, a clearing is anticipated, leading to isolated showers, with rain receding from the east early on Sunday night.

The Weekend Transition to Cloudiness and Instability

Sunday itself begins with a period of relative calm, though the day is forecast to deteriorate in the afternoon. Cloud cover is expected to increase, and widespread showers will develop, moving inland from the western regions. Those widespread showers carry an inherent possibility of developing into heavy downpours and isolated thunderstorms, requiring residents to remain vigilant about localized weather patterns. Despite the mid-week turbulence, the beneficial trend emerges for the latter part of the working week. The forecaster indicates that conditions will materially improve, with a definitive turn toward warmer temperatures commencing on Tuesday.

Stakes for the June Bank Holiday

The heightened anticipation surrounding the end of May centers on the potential for conditions favorable to the June Bank Holiday weekend. While a true heatwave remains a distant possibility, the improvement in temperatures and the increasing dry spells are key markers of a shift toward more stable, warm weather. The initial promise of warming temperatures by Tuesday is crucial, signaling an end to the most unsettled periods. The expectation of longer dry spells by the close of the working week significantly alters the atmospheric outlook, moving away from consistent showers and rain.

The bottom line

• Temperatures are set to rise to above-average levels during the final two weeks of May.
• The national weather service remains cautious, defining a full heatwave as five consecutive days above 25°C.
• Early part of the week is marked by persistent showers and thunder risks, particularly on Sunday afternoons.
• The transition toward warmer, drier conditions begins in earnest on Tuesday, stabilizing the forecast for the coming bank holiday period.