National Forecast
Issued at: 13 September 2026 15:00
TODAY - Sunday 13th September
Generally dry and cloudy for the rest of today with just light southerlies. Humid with highest temperatures of 16 to 22 degrees, warmest across Munster and Leinster.
TONIGHT
Little change tonight with dry and cloudy conditions prevailing. Mist in places too, mainly for west and southwest coasts. Later in the night, drizzle will show up across some southern and western fringes. Mild and humid with temperatures not falling below 12 to 16 degrees, in just light southwesterly breezes.
TOMORROW - Monday 14th September
Very mild starting out on Monday, largely dry too, with some sunny spells across Leinster and Ulster. However, it will be cloudier for Connacht and Munster with patchy outbreaks of rain and drizzle, heavy locally. During the afternoon, outbreaks of rain will develop more widely across Atlantic counties, turning heavy and persistent for a time. The rain will very slowly advance to the eastern half of the country later. While the rain will ease elsewhere, some heavy showers will follow. Areas of mist and hill fog also, especially in southern counties. Another humid day with highest temperatures of 17 to 24 degrees; warmest and driest further east, where it will possibly stay dry until the evening. South to southwest breeze will gradually increase moderate to fresh.
National Outlook
Overview: Cooler and changeable with rain or showers at times.
Monday night: Wet early in the night with widespread outbreaks of rain, along with mist and hill fog. The rain will gradually clear away to the east and will be followed by clear spells and scattered showers. Moderate to fresh southwesterly winds, easing and becoming westerly with the clearance of the rain. Very mild early in the night, but becoming cooler overnight with temperatures falling to between 11 and 14 degrees.
Tuesday: Brighter, cooler and fresher on Tuesday with a mix of sunny spells and scattered showers. Highest temperatures of 15 to 18 degrees with a moderate northwesterly breeze.
Tuesday night: Showers will become isolated during Tuesday night and will mainly affect the north and west. Lowest temperatures of 10 to 13 degrees with light to moderate northwesterly winds.
Wednesday: Mostly dry on Wednesday morning with sunny spells and isolated showers. Cloud will increase from the west through the afternoon, bringing some patches of drizzle. Top temperatures of 14 to 17 degrees in a moderate northwest to southwest wind.
Wednesday night: Cloudy with patches of drizzle early in the night, before a band of rain tracks eastwards across the country. The rain will quickly clear and will be followed by clear spells and showers. Lowest temperatures of 9 to 13 degrees with moderate southwest to west winds.
Thursday: Bright and breezy on Thursday with sunshine and scattered blustery showers. Cloudier conditions and longer spells of rain are possible in northern areas. Highest temperatures of 13 to 17 degrees with fresh and gusty westerly winds.
Outlook for the rest of the week: Staying changeable with further rain and showers at times, mixed with dry and bright periods. Daytime temperatures in 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.