The sunny south-east will live up to its name this week with considerably better weather than much of Ireland.
Met Eireann is forecasting Leinster counties to get the best of a mixed week with some hot weather but plenty of rain as well.
Today, Monday, will be bright at times although showers will become more widespread later this evening.
Tuesday won't be a great day with temperatures in the mid teens and plenty of heavy rain in most areas of the country.
From Wednesday onwards conditions look to be improving with temperatures reaching into the twenties.
That humid spell looks set to last into the weekend although the south-east of the country looks to be getting the best of it.
A Met Eireann forecaster said: "Thursday will continue mild, humid and mostly cloudy. Many areas will be dry and there'll be just a little patchy drizzle in places, mainly in western and northern parts of Connacht and Ulster.
"The best of any bright or sunny intervals will be in Munster and east Leinster. Highest temperatures of 15 to 19 degrees over the western half of the country and reaching 21 or 22 degrees in the east with moderate westerly breezes. On Thursday night, rain will develop in the northwest.
"Friday will start off dry in Leinster and Munster. However, rain and drizzle in the northeast will spread across the country through the day, becoming light and patchy as it does so with parts of the east and south staying dry. Highest temperatures of 15 to 21 degrees, warmest in Leinster, with light southwest breezes.
"Current indications suggest that Saturday will be mostly cloudy with outbreaks of rain in many areas and that Sunday will be brighter with some showers. Temperatures will range from about 16 degrees in the northwest to 21 or 22 degrees in the southeast."
