National Forecast
Issued at: 15 August 2026 23:00
TONIGHT
Becoming increasingly cloudy overnight with light rain and drizzle spreading from the northwest across Ulster and Connacht. Broken cloud in the southeast. Lowest temperatures of 10 to 14 degrees.
TOMORROW - Sunday 16th August
Sunday will be mostly cloudy with patchy rain, drizzle and mist, mainly over Ulster, Connacht and west Munster. Some sunny breaks in the east and southeast, but some drizzle here later also. Highest temperatures of 16 to 22 degrees with light to moderate southwest breezes.
National Outlook
Overview: Mixed conditions generally with rain or showers at times but dry intervals too. Temperatures generally in the high teens in the northwest to low or mid-twenties in the south and east.
Sunday night: Mild and largely cloudy with some spots of rain and drizzle. Temperatures will not fall below 12 to 16 degrees in mostly light westerly breezes. Some mist and fog patches will develop.
Monday: Largely cloudy and becoming quite humid with outbreaks of rain and drizzle, mainly in the north until later in the afternoon when heavier and more persistent rain will push in from the northwest. Highest temperatures of 17 to 21 degrees for Connacht and Ulster, 20 to 25 degrees for Munster and Leinster with the best of any sunny spells, all with mostly moderate, occasionally fresh southwesterly winds developing.
Monday night: Mostly cloudy with outbreaks of rain, heavy at times over the northwestern half of the country, becoming patchier as it extends southeastwards. Temperatures not falling below 13 to 17 degrees in mostly moderate westerly winds, fresher for Atlantic coasts.
Tuesday: A fair amount of cloud with well scattered showers, becoming more isolated later with better sunny spells developing. Highest temperatures of 16 to 17 degrees in the northwest to 22 or 23 degrees in the southeast in moderate to fresh westerly winds.
Wednesday: Sunny spells and scattered showers, heaviest and most frequent in the north and west. Highest temperatures of 16 to 17 degrees in the northwest to 23 degrees in the southeast, in moderate, occasionally fresh westerly winds, veering northwesterly.
Further Outlook: Current indications suggest a cooler, fresher northerly airflow will dominate for the following days, bringing a mix of sunshine and showers.
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.