Ulster basked in some of the best weather in the UK over the weekend, and was set for a final day of sunshine today before the good spell breaks.
Rain is expected on Tuesday, bringing to a close a week-long period of exceptional June weather.
People flocked to the beaches and countryside - where some sun worshippers will have been burnt due to the intensity of the rays. Experts are warning that the sun is at its strongest at this time of year as the summer equinox approaches.
There were weekend events across the province so people could take advantage of the scorching weather, including the Mayor's parade and carnival in Lisburn, agricultural shows at Armagh and Coleraine, the garden festival at Hillsborough and the river festival in Coleraine.
The good weather was in stark contrast with the previous Sunday, when there was widespread heavy rain in Northern Ireland.
The temperature topped 25 degrees Celsius (77 Fahrenheit) both yesterday and Saturday, which is unusually hot for this time of year.
Castlederg hit 25.4C (77.7F), the hottest temperature anywhere in Ireland.
St Angelo in Co Fermanagh was the hottest spot in Ulster on Friday, when it hit 24.6C, and Saturday, at 25.5C. Belfast was slightly cooler due to breezes coming from the east.
A spokesman for PA Weather Centre said of yesterday's weather: "It was a glorious day across the whole of Ireland, with the possible exception of the extreme southwest. Virtually everywhere has been sunny from dawn until dusk, with small build-ups of cloud."
He added: "If anywhere, the island of Ireland had the best of the weather with the exception of the English Riviera, down round Torquay."