It will remain in effect until Friday.
A status yellow high temperature will come into effect across the country from lunchtime today, until Friday.
Met Eireann say daytime temperatures will reach as high as 30 degrees, while at night it could be as high as 20 degrees.
The alert will come into effect from 1pm today.
Status Yellow - High Temperature warning for Ireland
— Met Éireann (@MetEireann) July 20, 2021
Met Éireann Weather Warning
High temperatures continuing this week with hot conditions by day and staying very warm and humid at night. ⬇️https://t.co/Xg3aMJlyuS pic.twitter.com/rlqRCazrgt
Evelyn Cusack from Met Eireann says there's a chance of a thunderstorm today:
Alan O'Reilly from Carlow Weather say there will be very few places which will escape the intense heat
☀️Solar UV index for Tuesday ☀️
— Met Éireann (@MetEireann) July 20, 2021
UV levels will be high to very high in clear skies today. Please follow @HseNCCP for advice and stay #SunSmart 😎🧴⛱️
More on the UV index here 👇https://t.co/sbFTHg1P07 pic.twitter.com/qOVp9iXsoz
The HSE has issued advice to help prevent heat exhaustion and heat stroke.
People are advised to ensure central heating is off, stay out of the sun between 11am and 3pm, stay hydrated, and keep drinks in the fridge.
Babies and children, people over 65, and people with underlying conditions are most vulnerable.
People are advised to seek medical help if they experience any signs of dehydration such as dizziness, drowsiness, or a racing heart
With the UV index set to be high or very high today, make sure to be #SunSmart and follow the 5'S to protect your skin. Stay safe by limiting time in the sun when UV is strongest, typically between 11-3pm.
— HSE Ireland (@HSELive) July 20, 2021
Visit: https://t.co/EvVjaSAe5t pic.twitter.com/qHXxkt6Ast
.