Another spell of hot weather is expected to arrive across North Wales, with temperatures forecast to climb towards 30C in parts of the region over the coming days.
The Met Office says conditions are set to turn warmer from the weekend, with temperatures potentially reaching heatwave levels in many areas.
Wales has already experienced a summer of extreme weather, including record-breaking temperatures and drought conditions, before some welcome rainfall arrived this week.
The recent showers have been welcomed by farmers and firefighters, with the cooler conditions providing some relief after a prolonged period of dry weather.
However, the heat is expected to return, with the possibility of parts of Wales meeting the Met Office definition of a heatwave.
For Wales, a heatwave is declared when a location records daily maximum temperatures of 25C or higher for at least three consecutive days. In some parts of south-east Wales, the threshold is slightly higher at 26C.
According to the latest Met Office forecasts, temperatures are expected to rise above that level in parts of Wales from Sunday and continue into the start of next week.
In North Wales, the warmest conditions are expected on Tuesday, with temperatures of around 28C forecast across parts of North East Wales, while many other areas could see highs of 26C or 27C.
Coastal areas, including parts of North West Wales, may see slightly lower temperatures because of the cooling influence of the Irish Sea, although sunny spells and warm conditions are still expected.
Health officials are reminding people to take care during periods of hot weather, particularly older people, those with underlying health conditions, young children and anyone working outdoors.
Advice includes staying hydrated, avoiding too much direct sun around the hottest part of the day, using sun protection and checking on vulnerable friends, neighbours and relatives.
The return of hotter weather also comes as Wales continues to recover from the impacts of dry conditions earlier in the summer. Water companies and emergency services have previously urged people to use water responsibly and remain cautious around open countryside due to the increased risk of fires.
Forecasters say the exact strength and duration of the heat will become clearer over the coming days, but North Wales is likely to see a significant rise in temperatures after the recent cooler and wetter spell.