Parts of Ireland could see temperatures surge past 20C at the start of next month.
Weather maps have turned red as a hot plume covers the country in what will likely be the final heat burst of 2022.
Met Eireann has also confirmed there is a signal for “anomalous high pressure” during the week of October 3 to 9.
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The national forecaster said: “Higher than average temperatures are expected for the period, along with lower than average amounts of rainfall. A relatively calm and settled start to October is therefore possible.”
According to the latest weather maps from Netweather, hot air will start moving in from the south west on Sunday, October 2.
By Monday, October 3 it is showing temperatures of 20C and 21C in parts of the south of the country, while the rest of Ireland will see the mercury hitting the high teens.
In the meantime, Ireland will feel the chill this week as biting polar air feeds in.
Daytime temperatures of just 12C to 16C are forecast for today, with Met Eireann warning it will feel even cooler due to windchill.
The weather is expected to remain quite settled until the weekend when very wet and windy conditions are possible.
Giving its forecast for this week, Met Eireann said: “Most areas will remain dry through the day on Monday with sunny spells although there will be a few isolated showers across Ulster and north Leinster. Highest temperatures of 12C to 16C, feeling even cooler though in moderate to fresh and gusty northwest winds.
“Remaining blustery and quite cloudy on Tuesday, with rain in the southwest gradually extending over Munster, Connacht and edging into south Leinster by evening. Elsewhere, it will remain mostly dry and cloudy with just a stray shower or two. Feeling cool in moderate to fresh northwesterly winds with highest temperatures of 11C to 14C generally, holding a little milder though in the southwest.
“Becoming drier and brighter on Wednesday with scattered showers and sunny spells developing. Highest temperatures of 12C to 15C in moderate northwest winds.
“A generally dry day with sunny spells on Thursday, though there will be occasional light showers. Highest temperatures of 13C to 16C in light northwesterly winds.
“There is some uncertainty in the forecast for the end of the week. Current indications suggest that Friday will be a wet and rather windy day with rain spreading from the west and possibly turning heavy at times. Remaining unsettled for the weekend with further showers and spells of rain spreading from the Atlantic.”
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