Ulster
Issued at: 24 May 2026 05:30
TODAY - Sunday 24th May
Cloudy with patches of drizzle at first, but sunshine will improve as the day goes on. Highest temperatures of 17 to 22 degrees, coolest in the northwest, with a light to moderate south to southwest breeze.
TONIGHT
Some coastal low cloud and fog is possible but otherwise it will be a dry night with clear spells. Patches of mist and fog will develop in a light and variable wind. Lowest temperatures of 7 to 12 degrees.
Pollen Forecast
Moderate on Sunday and Monday.
Solar UV Index
High or Moderate on Sunday and Monday.
TOMORROW - Monday 25th May
Some cloud and sea fog is possible at times, but it will generally be a dry and sunny day. Highest temperatures of 22 to 26 degrees, warmest inland and possibly a little cooler near northwestern coasts, with light southerly or variable winds.
National Outlook
Overview: Warm or very warm with plenty of sunshine at first. Temperatures will decrease later in the week, with showers becoming a possibility.
Monday night: Cloud and patches of drizzle in the north and west but dry with long clear spells elsewhere. Mist and fog will form overnight in light northerly or variable winds. Lowest temperatures of 10 to 15 degrees.
Tuesday: Mist and fog will clear during Tuesday morning. It will be dry and although some cloud will affect the northern half of the country at times, there will be plenty of warm or very warm sunshine overall. Highest temperatures of 20 to 27 degrees generally, warmest in Munster, although it will be cooler than this along north-facing coasts. Winds will be light to moderate and northerly or easterly in direction.
Tuesday night: Dry with long clear spells. Patches of mist and fog will develop in the south. Lowest temperatures ranging between 7 degrees in the north and 15 degrees in the southwest, in a light to moderate east to northeast breeze.
Wednesday: A few showers may develop in the southwest, but otherwise it will be a dry and warm day with plenty of sunshine. Highest temperatures of 20 to 26 degrees, warmest in Munster, with a light to moderate easterly breeze.
Wednesday night: Most areas will stay dry and clear on Wednesday night. However, showers are possible in southern areas. Very mild overnight with temperatures not falling below 12 to 16 degrees, with a light to moderate east to southeast wind.
Thursday: There is a possibility of some showers on Thursday, but these will be mixed with warm sunny spells. Highest temperatures of 18 to 24 degrees with a light to moderate south to southeast breeze.
Further outlook: Current indications suggest that it will become less warm for the end of the week and into the Bank Holiday weekend, with showers and rain possible.
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.