National Forecast
Issued at: 11 August 2026 21:30
TONIGHT
Thickening cloud with patchy outbreaks of rain and drizzle in the west and southwest tonight and overnight. Elsewhere, variable cloud amounts and clear spells with occasional showers moving up from the south overnight. There'll be some mist and fog around too, especially in parts of south and southwest. Mild and muggy with temperatures not falling below 15 to 18 degrees in light to moderate south to southeasterly breezes.
TOMORROW - Wednesday 12th August
There'll be a good deal of cloud around at first on Wednesday with scattered outbreaks of rain or showers. The showers will ease as the day goes on, and the cloud will gradually break up, allowing warm spells of sunshine to develop, these at their best in the southeast and east. Mostly cloudy conditions will persist near western and southwestern coasts, however. Top temperatures will range 23 to 29 degrees generally, hottest in Leinster. Temperatures will be a little lower in coastal parts of the west and southwest, ranging from around 20 to 22 degrees. Winds will be light to moderate southerly or variable.
National Outlook
Overview: Warm or hot and humid conditions for a time with sunny spells. Turning cooler by the end of the week. Some showers or rain likely in parts too.
Wednesday night: A largely dry night with clear spells over the eastern half of the county. Cloudier further west with further outbreaks of light rain or drizzle possible. Mild with temperatures not falling below 14 to 18 degrees, in a light southerly or variable breeze.
Thursday: Another warm or hot day with sunny spells and some further showers, especially in the west and northwest, turning heavy at times, with an isolated thunderstorm possible. Highest temperatures of 20 to 28 degrees, coolest along western coasts, in a light to moderate southwesterly wind.
Thursday night: Turning mainly dry Thursday night with some clear spells as any remaining showers ease. Lowest temperatures of 12 to 15 degrees in a light westerly breeze.
Friday: Friday will be a fresher day with highest temperatures falling back to between 17 and 22 degrees in a light to moderate northwesterly winds. A mix of sunny spells and scattered showers spreading from the west, becoming more isolated through the day.
The weekend: There is some uncertainty in the forecast for the weekend with current indications showing a cooler end to the week with temperatures falling back close to average. Saturday looks like a day of sunny spells and some scattered showers while Sunday has the potential to be a wetter day.
Temperature circle (°C): maximum and minimum temperature forecast for each day. Wind symbol (km/h): arrow points in the direction the wind is blowing. The weather and wind icons: for the time of maximum temperature and minimum temperature.