Leinster
Issued at: 23 June 2026 12:00
TODAY - Tuesday 23rd June
Warm or very warm and humid today with long spells of sunshine. Dry for most, but there is a slight chance of an isolated shower. Highest temperatures generally of 24 to 28 degrees in light westerly or variable breezes, moderate at times near the south coast. Warmest in the south and east but a little cooler near the coast, where onshore breezes develop.
TONIGHT
Dry tonight with clear spells. It will become cloudier in northern parts and western parts of the province overnight. Light variable winds will allow a few isolated mist and fog patches to form. Mild and humid with lows ranging from 12 or 13 degrees in western parts to 16 or 17 degrees further east and south.
Pollen Forecast
Very high today and on Wednesday.
Solar UV Index
High or very high today and on Wednesday.
TOMORROW - Wednesday 24th June
Wednesday will start off mostly cloudy in northern and western parts, with sunny spells elsewhere. Sunshine will become more widespread through the day, but may turn hazy at times. A dry day. Warm or very warm and humid day with highest temperatures generally of 23 to 27 degrees in light easterly or variable breezes. Cooler near the east coast with highs of 20 to 22 degrees. A few mist patches are possible near coasts.
National Outlook
Overview: The hot and humid weather will continue for the rest of the working week, with the heat peaking on Thursday. A lot of dry weather at first, but with some showers and thunderstorms from later Thursday. We'll see a gradual shift to cooler and more changeable conditions over the weekend, with some rain moving in from the Atlantic on Saturday, and drier and brighter fresher conditions for Sunday with sunshine and scattered showers.
Wednesday night: Very warm and humid on Wednesday night but dry for most on Wednesday night with clear spells. It'll be a bit cloudier across parts of Connacht and Ulster, with a few patches of light rain and drizzle possible in the west and northwest. Very warm and humid for some, with lowest temperature of 13 to 20 degrees, coolest in the northwest and warmest in the south and east.
Thursday: Thursday will be an exceptionally hot and humid day across Ireland. A little patchy light rain and drizzle is possible early on in the northwest, otherwise it'll be mostly sunny for a time and staying dry for many. Some shower cloud will form through the day, with this most likely in parts of Connacht and Ulster and especially in the northwest, with some thunderstorms possible there later in the day. Highest temperatures will range 24 to 31 degrees, hottest across the midlands and west, a few degrees lower in some coastal parts, in mostly moderate east to southeast winds.
Thursday night: Further heavy showers and thunderstorms are likely to continue on Thursday night in parts of the Connacht and Ulster, with a longer spell of persistent rain encroaching into coastal parts of the northwest and west, bringing the possibility of some spot flooding and frequent lightning. Elsewhere, it's likely to hold dry with some clear spells. Very warm and muggy for many with temperatures not falling below 17 to 20 degrees, generally, but cooler in parts of Connacht and west Ulster with lows of 13 to 16 degrees there. Winds generally easing light to moderate and variable in direction, though becoming moderate to fresh northerly in some coastal parts of the west.
Friday: Some persistent heavy thundery rain will likely affect northwest Connacht and west Ulster for a time on Friday, otherwise there's still likely to be a good deal of dry weather elsewhere, with sunshine, but with the chance of some showers and thunderstorms, especially further north. It'll possibly be cloudier overall in southern parts of Munster and Leinster. Still very warm or hot and humid, generally, with highest temperatures ranging from around 23 to 29 degrees, hottest across central and eastern parts of country, while it's likely to be a little cooler by the south coast, with values of around 20 degrees there. Winds will become mostly southerly and will be moderate to fresh.
Friday night: Another very mild and muggy night on Friday night with a mix of clear spells and some showers at first, before cloud increases from the southwest, and with rain starting to move in from the southwest and west. Lowest temperatures of 15 to 19 degrees in moderate to fresh south to southeast winds.
Saturday: Some bright or sunny spells at times in the east, but mostly cloudy on Saturday with outbreaks of showery rain slowly becoming more widespread from the west. Highest temperatures of 17 or 18 degrees along the west coast up to around 23 or 24 degrees in the east, in moderate to fresh southerly winds.
Sunday: The last of the rain will clear eastwards on Saturday night or early on Sunday and cooler, fresher conditions will become established across the country. There'll be good sunny spells but with a scattering of showers too. Rather breezy, especially further west, with moderate to fresh southwest winds, a little stronger in western coastal parts. Highest temperatures of 15 to 20 or 21 degrees, warmest in the east, so returning to average for the time of year.
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.