Five areas across the South East are at risk of drought as water supplies come under pressure due to the hot weather.
Bennetsbridge and Castlecomer in Kilkenny, Bunclody and Wexford Town aswell as Coalbrook in Tipperary are being monitored by Irish Water as temperatures reach record breaking levels this week.
Night time restrictions could be introduced to restore the water levels in reservoirs.
Irish Water say they will be able to cope with the extra demand over the summer months but are asking the public to conserve water where they can.
Professor Peter Thorne chairs the Climate Analysis ICARUS group at Maynooth University.
He says it shows we're woefully under-prepared for extreme weather events.
"Our infrastructure is built for a 19th century or early twentieth century climate.
"The climate of today is very distinct from that.
"We need to make sure that our infrastructure is fit for purpose for the climate we are seeing."
Those areas most at risk of drought in the South East, according to Irish Water, are again as follows:
- Bennettsbridge and Clogh Castlecomer in Kilkenny
- Coalbrook in Tipperary
- Wexford Town and Bunclody in Wexford
