Ireland Weather Forecast: A Mild Start to a Blustery Week

Here we are, Monday, September 28th, 2026, and it looks like Mother Nature is giving us a bit of a mixed bag to kick off the week. If you're looking for the latest on the Ireland weather forecast, you've come to the right place. We're seeing a relatively calm start before things take a bit of a turn towards the blustery side as the week progresses. So, grab your cuppa, and let's dive into what you can expect from the skies above Ireland today and in the coming days.

Today, Monday, September 28th, is shaping up to be pretty decent for most of the country. We're looking at a largely dry and bright day, which is always a welcome sight in late September. You can expect some pleasant spells of sunshine, though it might get a little hazy at times. Don't pack away your light jacket just yet, as there could be a few isolated showers popping up here and there, but nothing too dramatic to spoil your plans.

Temperatures across the island are holding up quite nicely for this time of year, ranging from a comfortable 14 to 17 degrees Celsius. A light to moderate south to southeast breeze will keep things moving, so it won't feel too muggy. If you've got errands to run or just fancy a stroll, today is probably your best bet before the weather decides to get a bit more dramatic.

Tonight's Outlook: Cloudier South, Patchy Rain Developing

As we head into tonight, the Ireland weather forecast suggests a continuation of dry conditions for most areas, with some clear spells allowing for a glimpse of the night sky. However, those of us in the southern half of the country might notice things getting a bit cloudier as the night wears on. This increasing cloud cover will bring with it some patchy rain and drizzle, which is expected to start developing towards morning.

Overnight temperatures will dip, but not drastically, staying between 9 and 14 degrees Celsius. The light to moderate southeasterly breeze we've had during the day will start to freshen up a bit towards morning, particularly in the south. So, if you're out late, be prepared for a slight chill and perhaps a few drops of rain as Tuesday approaches.

Tuesday's Turn: Wind, Rain, and the Threat of Localised Flooding

Now, Tuesday, September 29th, is where the Ireland weather forecast really starts to shift gears. "Windy" is the word of the day, with southeasterly winds expected to increase significantly. We're talking fresh to strong and gusty, potentially reaching near gale force by the afternoon and evening. So, if you have anything outside that isn't tied down, you might want to bring it in.

While the north might get some early bright spells, the rest of the country will be under a blanket of cloud, accompanied by that patchy rain and drizzle we mentioned for tonight. The real story for Tuesday, though, is the more persistent rain that's set to develop. It's expected to start in the southwest early in the afternoon and then push northeastwards through the afternoon and evening. This isn't just light rain either; it could turn heavy in places, with the potential for localised flooding. Keep an eye on local alerts if you're in an area prone to flooding.

Despite the wind and rain, it's actually going to be a mild and humid day. Highest temperatures are forecast to be between 17 and 20 degrees Celsius. It's a classic Irish conundrum: warm but wet and blustery.

The Week Ahead: Unsettled and Blustery

Looking beyond Tuesday, the national outlook for the Ireland weather forecast indicates an unsettled and blustery start to the week, with rain and heavy showers dominating. It's likely to become a bit more mixed as the week progresses, but we're definitely in for some changeable conditions.

Tuesday night, the rain will clear northeastwards, making way for scattered showers and clear spells, especially from the southwest early on. These showers could be heavy, blustery, and even thundery at times, particularly in the south and west. The strong to near gale southeasterly winds will veer southerly as the rain clears and ease to moderate to fresh, though still stronger near coastal areas. Lowest temperatures will range from 10 to 14 degrees.

Wednesday promises more blustery conditions with sunny spells interspersed with widespread showers. Some of these showers could again be heavy and thundery. Highest temperatures will be between 15 and 18 degrees, with fresh southerly winds, stronger near western coasts.

Wednesday night offers a bit of a reprieve, with winds easing and most areas turning drier as showers become confined to the west. This means plenty of clear spells for many. Lowest temperatures are expected to be between 8 and 12 degrees, with mostly light southerly breezes.

Thursday looks like a drier day for many, with sunny spells and scattered showers. However, a spell of more persistent rain is likely to move into the west later in the day. Highest temperatures will be 14 to 17 degrees, with moderate, occasionally fresh, southwest winds backing southerly later.

As we approach Friday, there's a bit more uncertainty in the details, but outbreaks of rain are currently likely to move in from the west. Temperatures will remain mild, between 14 and 18 degrees, with moderate to fresh southerly winds.

Looking Further Ahead: A Ridge of High Pressure?

The good news, if you're tired of the unsettled conditions, is that the further outlook suggests a signal for a ridge of high pressure to build through the weekend. This could bring drier and more settled weather. We can only hope, right? After a blustery few days, a bit of calm would be very welcome indeed.

So, there you have it, the full Ireland weather forecast for Monday, September 28th, and the days to follow. It's a week that certainly keeps us on our toes, but that's typical for Irish weather, isn't it? Always something to talk about. For the most up-to-date information, it's always a good idea to check the official Met Éireann website. Stay dry, stay warm, and mind the wind!