National Forecast

Issued at: 14 September 2025 09:07

TODAY - Sunday 14th September

Rain spreading northeastwards across the country this morning, heavy in places, along with fresh southeasterly winds. A clearance from the rain to sunny spells and showers will develop in the southwest late this morning, extending across the country through the afternoon. Some of the showers will be heavy and possibly thundery at times in the west and northwest. Winds will veer southwesterly as the rain clears, becoming strong and gusty along west and southwest coastal counties. Highest temperature of 13 to 19 degrees, coolest in Ulster.

TONIGHT

Breezy or windy tonight, especially in the west and southwest. Wet too with widespread showers or longer spells of rain, heaviest in the north and west. Lowest temperatures of 10 to 13 degrees with strong and gusty westerly winds and onshore gales in the west and southwest.

TOMORROW - Monday 15th September

Breezy on Monday morning with widespread showers and fresh to strong and gusty westerly winds. Some of the showers will be heavy and thundery, particularly in the north and northwest where spot flooding is possible. The showers and winds will gradually ease from the southwest from the late afternoon with many areas becoming dry during the evening with just isolated showers. However, the showers will continue over Ulster. Highest temperatures of 13 to 16 degrees.

National Outlook

Overview: Unsettled next week with strong winds at times and spells of heavy rain and showers

Monday night: Showers will continue to ease and become more isolated with clear and dry spells developing for most. However, scattered showers will continue in Ulster. Lowest temperatures of 9 to 12 degrees in mostly fresh westerly winds.

Tuesday: Tuesday morning will start off dry and bright for most with just isolated showers. Cloud will build from the southwest through the morning with outbreaks of rain spreading northeastwards through the day. Heavy at times in the west and southwest come the afternoon. Highest temperatures of 14 to 17 degrees in moderate to fresh southwest winds.

Wednesday: Dry for most to start with spells of rain in the northeast. Brighter spells will develop come the early afternoon with isolated showers. Rain will develop from the southwest later Wednesday evening, and clear eastwards across the southern half of the country. Blustery with fresh to strong westerly winds reaching gale force on north and northwest coasts. Highest temperatures of 15 to 18 degrees.

Thursday: A mostly dry and bright start with just a few isolated showers along north and northwest coasts. Isolated showers will develop throughout the day.

Friday: Increased uncertainty but current indications suggest a dry start with spells of showery rain moving in from the southwest by midmorning.