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Irish Mirror
Irish Mirror
National
Anita McSorley

Met Eireann May heatwave verdict as weather maps show Ireland roasting in near 25C heat

After a turbulent few weeks of weather which included thunder and lightning storms hitting Ireland, thermometers are finally forecast to soar.

Met Eireann says high pressure building to the southwest will dominate over the coming days, resulting in mild weather and mainly dry conditions.

The early taste of summer weather is set to continue for the entire month of May, with the national forecaster confirming in its monthly forecast that every week will see “higher than average temperatures”.

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Long-range weather maps - which are subject to change this far out - show temperatures creeping towards 25C next weekend.

However, Met Eireann has ruled out a ‘heatwave’.

Heatwaves are often defined as five days of consecutive above average temperatures, but a Met Eireann forecaster previously told the Irish Mirror: "That is a working definition used by some other met offices, but the Met Eireann definition of a heatwave is five consecutive days of temperatures above 25C.”

Temperature map for Monday, May 22 (Netweather.tv)

In the meantime, Ireland can expect a mix of showers, sunny intervals and mild temperatures this week

Giving a day-by-day breakdown, Met Eireann said: "Patchy outbreaks of rain and drizzle will continue for many Wednesday evening. There will be more persistent showers over the northern half of the country at times, some of which will be heavy and possibly thundery, causing surface water flooding. Moderate to fresh westerly winds.

"Wednesday will be quite cloudy with showers or longer spells of rain, most frequent in the northwest at first but extending southeastwards across the country overnight. Some showers will be heavy. Lowest temperatures of 6C to 10C with light to moderate westerly winds, fresher near Atlantic coasts.

"Widespread showers will continue Tuesday morning, some turning heavy and prolonged. During the afternoon they will start to die out in northern areas but will persist further south, with thunderstorms possible in the southeast. By evening, most places will be dry and sunny. Moderate to fresh northwest to north winds in the south and west, light winds in the north and east. Highest temperatures of 13C to 16C.

"Isolated showers early in the night Thursday but otherwise it will be dry with long clear spells. Patches of mist and fog will develop in light northerly or variable breezes. Lowest temperatures of 5C to 8C .

"Mostly dry Friday with sunny spells although isolated showers may develop in the afternoon and early evening. Highest temperatures of 15C to 18C with a light northerly breeze.

"Dry Friday night with long clear spells. Areas of mist and fog will develop in a light and variable breeze. Lowest temperatures of 5C to 8C .

"Mist and fog will clear during Saturday morning, leaving a mostly dry day with spells of hazy sunshine. Isolated showers are possible in the afternoon and cloud will thicken from the west during the evening. Highest temperatures of 15C to 19C with light and variable breezes.

"Saturday night will be cloudy and rain or drizzle will move into the west and north. Southerly winds will be generally light but will increase moderate to fresh in the west. Milder than recent nights with temperatures staying above 9C or 10C .

"Rain and drizzle will move southeastwards across the country on Sunday morning and afternoon, with sunshine and isolated showers following from the northwest. The rain will likely clear from the southeast by evening. Highest temperatures of 11C to 14C , with light to moderate southerly winds at first, turning northwesterly and increasing moderate to fresh after the rain."

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