Dublin
Issued at: 21 May 2026 05:30
TODAY - Thursday 21st May
Mostly cloudy to begin on Thursday, with patchy drizzle and mist at times. Brightening up in the afternoon and evening with some hazy sunshine developing. Mild and humid with highest temperatures of 17 to 19 degrees in light to moderate southerly breezes.
TONIGHT
Tonight will be cloudy and humid with patches of mist and drizzle, but overall a lot of dry weather away from southern and western fringes. Another mild night, with lowest temperatures of 11 to 13 degrees, in just light to moderate southerly breezes.
Pollen Forecast
Low on Thursday and Friday.
Solar UV Index
Moderate on Thursday and Friday.
TOMORROW - Friday 22nd May
Friday will begin mild and cloudy with patches of mist and drizzle. While sunny spells will gradually develop, the odd shower may occur. Very mild with highest temperatures of 17 to 20 degrees generally. Southwest breezes will be just light to moderate.
National Outlook
Overview: Temperatures on the rise through the rest of this week with high pressure becoming more dominant this weekend.
Thursday Night: Cloudy conditions in the west and south-west with patchy outbreaks of rain and drizzle will spread eastwards to all parts on Thursday night. There'll be a few mist patches too, along with hill and coastal fog in the south. Another mild night, with lowest temperatures of 11 to 13 degrees, with light to moderate southerly winds.
Friday: Mostly cloudy to begin on Friday with patchy rain, drizzle and mist. Cloud will break up through the afternoon with sunny spells and a few showers developing. It'll remain cloudy along western and southern coasts, though. Highest temperatures of 14 to 20 degrees, warmest across the midland, north and east, with moderate southerly winds, easing light to moderate south to southwest later. Any showers will largely die out on Friday night leaving variable cloud amounts and clear breaks. There'll be patches of mist along with hill and coastal fog too. Lowest temperatures 9 to 12 degrees in mainly light south-west or variable breezes.
Saturday: Saturday looks set to be a mostly dry day with warm sunny spells developing for most and just the chance of an odd shower in Atlantic coastal parts. Highest temperatures of 17 to 21 degrees generally, a little cooler in coastal fringes, in light southerly or variable breezes.
Sunday: Current indications suggest Sunday will be a dry, warm and sunny day for most, although mist and fog may linger in some coastal areas. Some thicker cloud and patchy rain or drizzle could affect the northwest. Highest temperatures of 18 to 22 degrees in light south-east or variable breezes.
Early Next Week: High pressure looks set to dominate into early next week with generally dry and settled conditions persisting and daytime highs potentially reaching the mid-twenties in places.
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.