It typically takes place every two to seven years and lasts around nine to 12 months.
There could be an increased risk of extreme weather events this summer, according to the World Meteorological Organization.
There is an 80-per-cent chance of the El Niño phenomenon starting between this month and August, which warms oceans in the tropical Pacific.
It typically takes place every two to seven years and lasts around nine to 12 months.
Alan O’Reilly from Carlow Weather says according to long range weather forecasting, the summer should be warm, but that could change:
It hasn't been a great start to the official Irish summertime, but the good weather should be returning later this month.
This week there is 30 millimeters of rain expected, with the worst weather to be on Friday night.
According to long range weather forecasting, the summer should clear up.
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