Leinster
Issued at: 22 September 2026 05:30
TODAY - Tuesday 22nd September
Mostly cloudy this morning with mist, fog and drizzle in southern areas. Scattered showers will develop this afternoon and evening, with occasional sunny spells, though cloud will increase again towards evening. Highest temperatures of 18 to 22 degrees, in light to moderate southerly or variable breezes.
TONIGHT
Rain and drizzle will move in to the western part of the province early in the night, and move eastwards as the night goes on, though it will become lighter as it does. The rain will give way to mostly dry conditions, with good clear spells, and only isolated showers. Minimum temperatures will fall to between 7 and 12 degrees in the northwest of the province, but remain higher in the southeast where cloud and patchy rain will linger until morning, with lows of 13 to 15 degrees. There will be patches of mist and fog also, in light variable breezes.
Pollen Forecast
Low on Tuesday and Wednesday.
Solar UV Index
Low to Moderate on Tuesday and Wednesday.
TOMORROW - Wednesday 23rd September
Mist and fog will clear tomorrow morning, along with any lingering rain in the southeast, leaving a mostly dry day with sunny spells. Highest temperatures of 15 to 19 degrees, in light to moderate northwesterly or variable breezes.
National Outlook
Overview: Mixed for the rest of the week, with rain or showers at times. Daytime temperatures in the mid to high teens.
Wednesday night: Dry with clear spells at first, but cloud will increase overnight and patches of light rain or drizzle will develop in the west and northwest. Lowest temperatures of 7 to 11 degrees with a moderate southerly breeze developing.
Thursday: Thursday will be a breezy day with a fresh and gusty southerly wind. Most areas will be dry at first with occasional sunshine, but there'll be patchy rain and drizzle in the west and northwest and also some drizzle towards the south coast. The rain will slowly move eastwards across parts of Ulster, Connacht and Munster during the afternoon and evening. Highest temperatures of 15 to 19 degrees.
Thursday night: Winds will ease on Thursday night and it'll be mostly cloudy with patchy light rain or drizzle. Mild and humid with lowest temperatures of 11 to 14 degrees.
Friday: Friday morning will be cloudy with patchy light rain or drizzle. This will gradually clear eastwards through the afternoon and evening, giving way to sunshine and showers, mainly in the west and north. Highest temperatures of 13 to 16 degrees with light to moderate southwesterly winds.
Friday night: A few showers in the north and west on Friday night, otherwise dry with long clear spells. Lowest temperatures of 7 to 11 degrees with light to moderate southerly winds.
The Weekend: A bright and breezy start to Saturday with sunny spells and scattered blustery showers. Rain is expected to move into the west later on Saturday, moving eastwards across the country on Saturday night, followed by sunny spells and scattered showers on Sunday. Daytime temperatures over the weekend will reach the mid to high teens.
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.