If you're heading out today you may need a sun hat
Dry for the rest of the day, with good sunny intervals, according to Met Eireann. Maximum temperatures 15 to 20 Celsius, coolest on east and south coasts, in mostly moderate south to southeast breezes.
Tonight will be dry, with clear spells. Minimum temperatures 5 to 8 Celsius, in mostly light southeast breezes.
Tomorrow, Tuesday, will be another dry day, with sunny intervals. Maximum temperatures 17 to 21 Celsius generally, warmest in Connacht, west Ulster and in the midwest, but it will be a little cooler on east and south coasts, with values of 14 or 15 Celsius. Winds will be mostly moderate, south to southeasterly.