Dublin
Issued at: 21 September 2026 07:30
TODAY - Monday 21st September
Today will be warm, humid, mostly cloudy and mainly dry. There'll be a little drizzle and mist this morning. Some bright or sunny intervals will develop, the best of these during the afternoon. Highest temperatures of 20 to 22 degrees with light to moderate southwesterly breezes.
TONIGHT
Tonight will be mild, humid and mainly dry with some clear spells and patches of mist or fog. Lowest temperatures of 12 to 15 degrees with light southerly breezes.
Pollen Forecast
Low today and Tuesday.
Solar UV Index
Moderate today and on Tuesday.
TOMORROW - Tuesday 22nd September
Tuesday will be mainly dry with bright or sunny spells and perhaps a few showers. Highest temperatures of 17 to 20 degrees with light southerly winds.
National Outlook
Overview: Turning a bit cooler with a fair amount of dry weather and some rain or showers at times.
On Tuesday night, rain in Ulster, Connacht and west Munster will gradually move southeastwards to almost all areas overnight. Lowest temperatures of 11 to 14 degrees with light to moderate south to southwest breezes.
Through Wednesday morning, rain will gradually clear to the southeast. Drier, brighter weather will follow from the west with sunny spells developing. Cooler with highest temperatures of 14 to 17 degrees and light to moderate northwesterly winds.
Wednesday night will be dry with clear spells. Cloud will increase in the west overnight. Lowest temperatures of 6 to 9 degrees with light variable winds backing southeasterly.
Thursday will start off dry with bright or sunny spells in the east. Cloudier further west with rain developing in the west and northwest by early afternoon and then spreading southwards through the rest of the day. Highest temperatures of 15 to 19 degrees with fresh, gusty southerly winds.
On Thursday night, rain will continue for a time and will clear to the east overnight. Lowest temperatures of 10 to 13 degrees with winds becoming southwesterly and easing as rain clears.
Friday will be mainly dry with bright or sunny spells and perhaps a few showers. Highest temperatures of 15 to 18 degrees with moderate to fresh west to southwest winds.
Next weekend looks like it will be unsettled with rain or showers at times and with temperatures in the mid to high teens.
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.