National Forecast
Issued at: 19 September 2025 20:56
TONIGHT
Cloudy and wet in most areas at first, with widespread rain and drizzle. The rain will continue in the east and southeast overnight and it will become dry with clear spells elsewhere, although isolated showers are possible near Atlantic coasts. Lowest temperatures of 9 to 11 degrees in the east and southeast and 5 to 8 degrees elsewhere. Some mist and fog patches will form in near calm conditions.
TOMORROW - Saturday 20th September
Rain will clear from the southeast early tomorrow and it'll be dry with sunny spells for a time. Scattered showers will then move across the country from the north through the day. Some of the showers will be heavy and isolated thunderstorms are possible. Winds will be light and variable at first but will become northerly and increase moderate to fresh as the day goes on. Highest afternoon temperatures of 12 to 16 degrees.
National Outlook
Saturday night: Clear spells and scattered showers, mainly in the north and west and near eastern coasts. Lowest temperatures of 4 to 8 degrees with a light to moderate northerly breeze.
Sunday: Most areas will be dry and sunny in the morning but there'll be some showers in the north and west. The showers will move further south during the afternoon but will die out from most places through the evening. Cooler than recent days with highest temperatures of 11 to 15 degrees, in a light to moderate northerly breeze.
Sunday night: Dry with long clear spells and light northerly winds. Patches of mist and fog may form and it will be cold with lowest temperatures of 2 to 6 degrees.
Monday: A crisp, dry and sunny start to the day. Cloud will gradually increase from the north through the day but sunny spells will continue in the south. Highest temperatures of 11 to 14 degrees with light north to northwest or variable winds.
Monday night: Dry, with some cloud over the northern half of the country but clear spells further south. Patches of mist and fog may form in near calm conditions. Lowest temperatures of 3 to 8 degrees, coldest under the clearest skies in the south.
Tuesday: Dry with occasional sunshine. Highest temperatures of 12 to 14 degrees with a light southerly or variable breeze.
Tuesday night: Dry but with cloud thickening from the west overnight. Lowest temperatures of 4 to 10 degrees, mildest under cloud in the west, in a light southerly wind.
Wednesday: Generally cloudy on Wednesday but staying dry in most areas. Some patchy light rain or drizzle may develop near Atlantic coasts. Highest temperatures of 13 to 15 degrees with a light to moderate southerly wind.
Further outlook: High pressure will continue to dominate, bringing generally dry and settled conditions, and temperatures will be close to normal.
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.