Réamhaisnéis Náisiúnta
Issued at: 20 September 2026 04:30
TODAY - Sunday 20th September
A largely bright and sunny morning with plenty of dry weather and light winds. A mix of cloud and sunny spells will continue into the afternoon, taking the dry weather with it but more cloud will develop across western counties into the afternoon with other areas seeing more cloud by evening. Mostly dry overall apart from some light drizzle in the far west. Light winds throughout and highs of 15 to 18 degrees.
TONIGHT
Becoming cloudy with some patchy light drizzle along Connacht and Ulster but elsewhere staying dry. Light southerly breezes and rather humid conditions overnight too with lowest temperatures of 13 to 16 degrees.
TOMORROW - Monday 21st September
A little cloudy and misty in the morning but sunny spells will break through by the afternoon with plenty of dry weather too. Warmer than previous days with highs of 18 to 23 degrees and feeling humid too in just light southwesterly breezes.
National Outlook
Overview: Turning rather mild and humid for early next week but still some rain and drizzle at times. Plenty of dry weather interludes also.
Monday Night: A very mild and humid night with a lot of dry weather and some clear spells, but still some mist and drizzle patches in the west and northwest. Fog patches possible in the south overnight too with lowest temperatures of 13 to 16 degrees in light to moderate southerly winds.
Tuesday: Becoming overcast during the morning with outbreaks of rain but more persistent rain will push in across Connacht and Ulster. Staying cloudy throughout the day with light southerly winds and highs of 17 to 20 degrees.
Tuesday Night: Cloudy with rain mainly across the west and northwest. Drier weather elsewhere but there will be some patchy outbreaks of light rain at times. Mist patches forming overnight too with light winds and lows of 11 to 14 degrees.
Wednesday: Cloudy, wet and unsettled to start but the rain will gradually move off the country in the morning leaving behind cloud for the afternoon and some dry weather and plenty of clear spells developing. Highs of 14 to 17 degrees with light northwesterly winds.
Further outlook: Current indications suggest that the unsettled weather will return for Thursday with some wet and possibly very windy conditions in store.
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.