National Forecast
Issued at: 22 May 2026 10:00
TODAY - Friday 22nd May
Mostly dry and cloudy at first with isolated drizzle and mist. Showery rain will develop in the southwest this morning and will move northeast across the country this afternoon. Further rain will develop in the west later this afternoon and will also track northeastwards. Parts of the east and southeast will remain dry. Highest temperatures of 15 to 21 degrees, warmest in the midlands and northeast, with light to moderate southerly winds. Sea fog is possible near southern coasts, keeping temperatures lower.
TONIGHT
Any lingering showers will die out early on, leaving a dry night with a mix of cloud and clear spells. Mist and fog will develop overnight, particularly in the south. Lowest temperatures of 7 to 12 degrees in a light southerly breeze.
TOMORROW - Saturday 23rd May
Mist and fog will clear from most areas tomorrow morning, but may linger near the south coast. It will be a dry day with spells of hazy sunshine for most, but some cloud will build in the west and northwest at times. Highest temperatures generally of 17 to 23 degrees, warmest in Leinster, with light to moderate southerly or variable winds. Temperatures will be a little lower near western and southwest coasts, though.
National Outlook
Overview: Temperatures will continue to trend upwards with warm or very warm conditions. High pressure will bring mostly dry and settled weather too. Sea fog may impinge in some areas however.
Saturday night: While most areas will remain dry and clear, cloud will continue to increase over northwest areas. Mist and fog patches will form towards morning in the southwest in light or variable southerly breezes. Lowest temperatures of 8 to 12 degrees.
Sunday: Sunday will bring another warm day with spells of sunshine. Cloudier skies will remain over the northwest until the evening, when brighter spells will develop. Meanwhile, sea fog will persist for a time on southern coasts in the morning. Highest temperatures of 18 to 22 degrees, in just light southerly or variable breezes.
Sunday night: A clear and dry night instore with patches of mist, fog and sea fog forming towards morning. Mild, with lowest temperatures of 9 to 12 degrees in light or variable southerly breezes.
Monday: A bright start for most, but cloudier for a time to the northwest. Mist and fog patches will linger for a time in the morning before bright and sunny spells develop through the remainder of the day. Highest temperatures of 18 to 23 degrees in light variable breezes.
Tuesday: Tuesday will start out mostly bright, however, mist and fog patches may linger in places for a time. Warm and sunny spells will become widespread across the 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.