Cloudy skies over an Irish landscape with a hint of rain, illustrating Ireland weather forecast.

Ireland’s Monday Weather Forecast: Cloudy, Rain & Mild

Monday's Mixed Bag: Cloudy Start, Rain Spreading, and Warm Pockets

As another week begins in Ireland, Monday, August 17th, 2026, brings a fairly typical summer's day: a bit of everything. If you're heading out, especially in the western and northern parts of the country, you'll want to keep an eye on the skies. We're looking at a generally mild and humid day, but with some rain pushing through.

Cloudy skies over an Irish landscape with a hint of rain, illustrating Ireland weather forecast.

The morning started out quite cloudy for most areas. There was some patchy rain and drizzle, particularly noticeable in the west and north. However, for those further south and east, things were a little drier, with some welcome sunny spells gradually appearing. It's that classic Irish weather pattern where the sunshine plays hide and seek, often winning in one spot while another gets a quick shower.

Rain on the Horizon

Don't get too comfortable with those dry spells, though. Met Éireann's latest update suggests that the rain will become more persistent as the day progresses. The northwest will see this first, with occasional heavy downpours expected through the afternoon. From there, it's going to spread southeastwards into the evening. So, if your plans involve being outdoors later today, especially if you're in the path of that spreading rain, a waterproof layer might be a good idea. We know how quickly an Irish summer shower can turn into a proper soaking.

Temperatures are a bit of a mixed bag across the country. Ulster and Connacht can expect highs ranging from 17 to 21 degrees. That's certainly mild enough for this time of year. However, for the rest of the country, it's looking a fair bit warmer, with temperatures climbing to between 21 and 25 degrees. These warmer conditions will be accompanied by light to moderate westerly breezes, which should help to make those higher temperatures feel a little more comfortable. It's a good day for an ice cream, if you ask me.

What to Expect Tonight

As Monday transitions into Monday night, cloudy conditions will persist. Those outbreaks of rain, starting in the northwest, will continue their journey southeastwards. They're expected to become lighter and patchier as they move across the country. Following this, scattered showers will move in from the west.

It's going to be a mild night overall, which isn't a huge surprise given the daytime temperatures. The lowest temperatures we're looking at are between 13 and 17 degrees. Again, light to moderate westerly breezes will be a feature throughout the night. So, if you're planning an evening stroll, it won't be a particularly chilly one, but you might still encounter a few drops of rain.

Looking Ahead to Tuesday and Beyond

Let's cast an eye towards tomorrow, Tuesday, August 18th. It seems we'll be starting another day with mostly cloudy skies and scattered showers. These showers will primarily affect the west and north, much like today. However, there's a silver lining: the afternoon should see things gradually brightening up, with more sunny spells developing.

One notable change for Tuesday will be the temperature. It's set to be cooler than recent days, with highest temperatures ranging from 16 to 20 degrees. Light to moderate westerly breezes will be present, occasionally fresh along Atlantic coasts. So, don't put away those lighter jackets just yet.

Looking further into the week, the national outlook from Met Éireann suggests we're in for mixed conditions. We can expect showers or longer spells of rain at times, with occasionally breezy periods. Temperatures will generally hover in the high teens to low twenties.

Tuesday night is forecast to be mostly dry with clear spells for the majority of the country. However, scattered showers will still be a feature, mainly in the west and north, potentially becoming heavy in the northwest towards morning. It's going to be cooler than previous nights, with lows of 11 to 14 degrees.

Wednesday looks like it will bring more widespread showers across the country, with the potential for them to turn heavy and merge into longer spells of rain. It will also be breezy, with moderate to fresh westerly winds, strong at times near Atlantic coasts. Temperatures will be between 16 and 21 degrees.

Wednesday night will see the showers easing, becoming mostly confined to the north and west, allowing for clear spells elsewhere. Lowest temperatures are expected to be 10 to 14 degrees, with winds easing to light to moderate and becoming northwesterly.

Thursday will be another day of widespread showers, again potentially heavy and prolonged in some areas. Highest temperatures will be 15 to 20 degrees, with moderate, occasionally fresh, northerly winds.

Friday promises sunny spells and showers, though not as widespread as earlier in the week, meaning more dry weather is likely. Highest temperatures will be 14 to 19 degrees with moderate northerly breezes.

The good news is that current indications for next weekend show a more settled picture, with sunny spells and just isolated showers. Temperatures will likely be in the mid to high teens. So, there's some hope for nicer weather on the horizon for those weekend plans.

For the most up-to-date and detailed information, always check the official Met Éireann website. They provide comprehensive forecasts that are invaluable for planning your week.

So, for today, Monday, August 17th, be prepared for clouds, some rain, and mild conditions. Grab your umbrella if you're out and about, and enjoy the warmer pockets while they last. It's Ireland, after all; we learn to appreciate every bit of sunshine we get!

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