Across the country, people are slathering on the suncream and digging out their summer shorts as Met Éireann has issued a Status Yellow High Temperature warning for eight counties with temperatures forecast to hit up to 30C in some areas.
Met Éireann said temperatures above 27C, along with night time temperatures above 15C, are likely for Clare, Kerry, Limerick, Tipperary, Galway, Kilkenny, Laois and Offaly.
The warning is in effect until 6pm tomorrow.
The forecaster said the high temperatures could lead to heat stress, difficult sleeping conditions and water safety issues due to increased use of lakes and beaches.
On top of this, forest fires are also a possibility with the Department of Agriculture issuing an Orange level advisory.
In conditions such as this, people should be mindful of the risk of heat stress, heat exhaustion and heatstroke.
The Health Service Executive has previously warned that during heatwaves, older people, young children and more vulnerable groups are most at risk.
So, with that in mind, here is some advice for taking care in the sun.
Stay cool
One important tip from the HSE is to stay out of the sun when UV is typically strongest between 11am and 3pm, by either staying in the shade or covering windows exposed to direct sunlight.
If you will be outdoors, then it is vital to protect your skin by using shade, wearing clothes that cover your skin, wear a wide-brimmed hat, sunglasses and sunscreen of factor 30+ for adults and of 50+ for children.
All of the above can help to protect our bodies from the sun's harmful UV rays.
When it comes to sunscreen, it is important to reapply it throughout the day if you are out and about.
Opening windows can bring some natural ventilation into a room to cool it down, particularly at night, so should be done when it is safe and feasible to do so.
Keep hydrated
Keeping hydrated throughout the day is said to be key, so do make sure you are drinking water at regular intervals.
If you feel dehydrated at any point, it is important to drink water or oral rehydration sachets (ask your pharmacist for advice on the latter).
Again, if you are out and about, make sure to bring water with you. Your body sweats to try cool you down in the heat, so drinking water rehydrates your body.
Our pets can be susceptible to dehydration and heatstroke, too, so it is important to ensure they are not exposed to the heat for long periods of time. Absolutely do not, for example, leave your dog in your car.
Water safety
At a time when the weather is like this, it is likely that beaches and seaside areas will be packed.
The Government tends to advise people to only swim at designated waterways and beaches where lifeguards are present. It also advises people to follow orders from lifeguards and pay attention to all the signage in an area.
Try to stick to a depth you feel comfortable in, and within the flags.
If you are caught by a rip current sweeping you out to sea, do not swim against the current. The advice is to try to remain calm and swim parallel to shore until you are free.
If you are enjoying the water closer to home, adults are told to always supervise playtime in paddling pools and ensure they are emptied straight away after use.
