National Forecast
Issued at: 19 September 2026 06:30
TODAY - Saturday 19th September
Bright and breezy with sunny spells. Scattered showers will mainly affect the northern half of the country with plenty of dry weather further south. Highest temperatures of 14 to 19 degrees, coolest in the northwest and warmest in the south and southeast, with moderate to fresh southwest to west winds, stronger in the northwest.
TONIGHT
Dry for most with clear spells, as showers become mainly confined to the northwest and north. Cloud will thicken in the southwest and parts of the south though, with the odd spot of drizzle possible here too. Lowest temperatures of 7 to 12 degrees, with light to moderate southwest to west winds, fresher at times in the west and northwest, easing through the night.
TOMORROW - Sunday 20th September
Plenty of dry and bright weather with sunny spells away from the southwest. However, cloud in the southwest will gradually spread northeastwards to most areas through the day, together with the odd patch of drizzle or mist. Highest temperatures of 14 to 20 degrees, coolest in Ulster, with light variable breezes becoming southerly.
National Outlook
Overview: Becoming warm and humid for the start of next week. While there will be some rain and drizzle, there will be plenty of dry weather too. Turning fresher again on Wednesday.
Sunday night: Mostly cloudy with patches of rain and drizzle, mainly further west, along with some coastal and hill mist and fog. Mild and humid with temperatures not dropping below 11 to 15 degrees, with light to moderate southerly breezes.
Monday: Mostly cloudy with a few patches of light rain, drizzle and mist, but also plenty of dry weather. Some brighter or sunny spells may develop through the day. Warmer than previous days, and humid too, with highest temperatures of 18 to 23 degrees, warmest away from southern and western coasts, with a light to moderate southwesterly breeze.
Monday night: Dry for many, but mostly cloudy with a few patches of drizzle and mist around, possibly becoming more persistent in the west and northwest towards morning. Very mild and humid with temperatures not dropping below 13 to 16 degrees, with light to moderate southerly breezes.
Tuesday: Drier and brighter with sunny spells towards the south and east. Cloudier towards the west and north with some rain and drizzle likely. Highest temperatures of 15 to 20 degrees, coolest in the northwest, with a light to moderate south to southwest breeze.
Wednesday: Current indications are for rain to clear eastwards early on, with drier and brighter conditions following. Cooler than previous days with highest temperatures of 14 to 18 degrees, with a light to moderate northwesterly breeze.
Further outlook: Mixed conditions for the remainder of the week and into next weekend, with some spells of wet and breezy weather expected, current indications suggest Thursday and Sunday, with drier spells in between.
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.