National Forecast
Issued at: 01 September 2026 05:00
TODAY - Tuesday 1st September
This morning will be mainly dry with scattered showers and sunny spells. However, it will turn cloudier this afternoon with more persistent rain developing in Ulster, possibly turning heavy at times near northern coasts. Another spell of rain will move into the southwest this evening. Highest temperatures of 15 to 20 degrees in mostly moderate southwest winds.
TONIGHT
Wet tonight with rain becoming widespread across the country, turning heavy at times. The rain will ease and become patchier in the southwest towards morning. Lowest temperatures of 12 to 16 degrees with light to moderate south to southeast winds, fresher along southern coasts.
TOMORROW - Wednesday 2nd September
Tomorrow will be a wet start for most with outbreaks of rain and drizzle. The rain will become patchier through the morning with occasional bright breaks developing, mainly in the south and east. However, more persistent showery rain will continue in parts of the northwest and north. Highest temperatures of 16 to 21 degrees with moderate southwest winds.
National Outlook
Overview: Unsettled with low pressure dominating bringing rain and showers. Breezy at times too.
Wednesday night: Well scattered showers and clear spells with moderate southwesterly breezes. A mild night with lowest temperatures of 13 to 16 degrees.
Thursday: Mainly dry to start with sunny spells and just well scattered showers. Outbreaks of rain will move in from the west through the afternoon, likely extending to most areas by the evening. Highest temperatures of 16 to 21 degrees with moderate to fresh west to southwest winds, strong at times near coasts.
Thursday night: Widespread outbreaks of rain will continue at first, heavy at times. The rain will likely become mostly confined to the south and southeast towards morning. Lowest temperatures of 12 to 16 degrees with moderate southwesterly winds, fresher along southern coasts.
Friday: A drier day for most with sunny spells and scattered showers, mainly affecting the north and northwest. Highest temperatures of 15 to 19 degrees with moderate to fresh westerly winds.
Saturday: There is uncertainty in the details with further outbreaks of rain likely. Highest temperatures of 15 to 19 degrees with mostly light southerly breezes.
Further outlook: Likely remaining unsettled on Sunday and Monday with further rain and showers.
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.