Ireland Weather Forecast Today: Tuesday 15 September
Tuesday, September 15: Sunshine and Showers Across Ireland
Here we are, mid-September, and if you're like me, the first thing you do each morning is glance out the window to see what the day holds. Today, Tuesday, September 15, Met Éireann says we're in for a bit of everything, which, let's be honest, is pretty standard for an Irish autumn. Expect a mix of sunny spells and scattered showers, some of which could be quite heavy. So, if you're heading out, that trusty umbrella or a waterproof jacket isn't just a suggestion, it's a necessity.

Temperatures won't be breaking any warmth records, but they're not dreadful either. We're looking at highs of 14 to 19 degrees Celsius. This is typical for this time of year, a gentle reminder that summer is firmly behind us and cooler days are here to stay for a while. The wind will also play its part, with a moderate to fresh west to northwest breeze. This means it will feel a little fresher, especially in more exposed areas. If you're on the coast, you might feel that wind a bit more keenly.
It's a day that calls for flexible plans. If you're hoping for an uninterrupted walk or an outdoor activity, be ready for sudden downpours. The good news is that "scattered showers" usually means they'll pass, leaving room for some lovely sunny intervals. These are the moments we live for in Ireland, those brief but beautiful patches of sunshine that make you forget the rain ever happened.
Tonight's Forecast: Clearing Up, But Still Cool
As we head into tonight, the weather should become a bit more settled. Most areas will see dry conditions with clear spells, which is always a welcome change after a showery day. However, those scattered showers won't completely disappear; they'll mostly be confined to the north and west. So, if you're in those regions, don't put the brolly away just yet.
Temperature-wise, it's going to be a rather cool night. We're expecting lows of 9 to 12 degrees generally. This is the kind of temperature where you'll want a warmer duvet or might even consider turning on the heating for a bit to take the chill out of the air. The westerly wind will moderate, meaning it won't be as blustery as it was during the day. It's a night that might just be perfect for stargazing if those clear spells hold up in your area.
Looking Ahead to Wednesday, September 16: A Dry Start, Then Changes
Wednesday promises a generally dry start, which will be a relief for many after Tuesday's mixed bag. We'll see a mix of cloud and some sunny spells, making for a pleasant enough day for most. This is the kind of weather that makes you think, "Ah, maybe autumn isn't so bad after all."
However, as the day progresses, things will start to shift. Thickening cloud will gradually bring patches of drizzle and mist to Atlantic counties. This means if you're along the west coast, you'll see the first signs of what's to come. By evening, rather wet and breezy weather will begin to develop. So, while the morning might be good for outdoor tasks, keep an eye on the sky if you're planning anything for later, especially if you're further west.
Highest temperatures for Wednesday will range from 13 to 17 degrees, with a mostly moderate west to southwest wind. So, a touch cooler than Tuesday for some, but still fairly mild.
The Week Ahead: Breezy with Scattered Showers
Looking at the national outlook for the rest of the week, "breezy with scattered showers" seems to be the recurring theme. We're in for a typical Irish autumn week, where you can't quite depend on the weather for too long.
Wednesday Night: The wet and rather breezy weather developing across Atlantic counties will push eastwards early in the night. Following that, we'll see clear spells and well-scattered showers for the rest of the night. Lows will be around 9 to 12 degrees, with moderate to fresh southwesterly winds.
Thursday: Expect a fresh and breezy day. We'll have sunny spells interspersed with scattered showers. These showers will be most frequent across the west and northwest, so those parts of the country should prepare for more rainfall. Interestingly, parts of the southeast might manage to stay dry, offering a little reprieve. Highs will be between 14 and 17 degrees, accompanied by a rather brisk westerly breeze.
Friday: This looks like it could be the wettest day of the week. It will be rather wet and breezy during the morning, with cloudy outbreaks of rain occurring widely. The good news is that the rain should ease into the afternoon. However, it will remain fairly cloudy with patchy rain or drizzle for the rest of the day. Temperatures will be a bit milder, ranging from 15 to 19 degrees, with a moderate, occasionally fresh, southwesterly wind.
This Weekend: Saturday will continue the breezy theme, with sunny spells and passing showers. These showers are expected mainly across the northern half of the country. Sunday, however, looks like it will be a bit drier, which is always good news for weekend plans. That said, thickening cloud will bring patchy outbreaks of drizzle during the evening, so don't get too complacent.
So, there you have it. The Ireland weather forecast for Tuesday, September 15, and the days to follow paints a picture of classic Irish autumn weather. It's a reminder that whatever your plans, checking the local forecast from a reliable source like Met Éireann is always a good idea before you head out. Embrace the layers, keep that umbrella handy, and enjoy the beautiful moments of sunshine when they appear. After all, it's all part of living in this incredible country.
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