Ireland Weather Forecast: Friday 11 September
Friday's Forecast: A Bright Start Before the Rain Rolls In
It's Friday, September 11th, and if you're looking outside this morning, things might not seem too bad. Met Éireann describes the start of the day across Ireland as "bright and generally dry with sunny spells." That sounds pretty good, doesn't it? It's the kind of September day that makes you want to get out and enjoy it before the real autumn chill arrives.

However, as is often the case with Irish weather, there's a catch. We're expecting only the "odd light shower about," particularly in the west and northwest. So, if you're planning anything outdoors in those areas, it might be wise to keep a light rain jacket handy. Temperatures today will be quite pleasant, ranging from 15 to 20 degrees Celsius. The northwest will feel a bit cooler, which isn't surprising given its Atlantic exposure. We'll also have a light westerly breeze, which will shift southerly as the day progresses and pick up a bit in the west by evening.
The real change in the Ireland weather forecast comes later today. Cloud will begin to thicken along the western Atlantic coasts, and by nightfall, we're anticipating outbreaks of rain and drizzle. This is a sign of what looks like a rather wet night for most of the country.
Tonight's Turn: Wet and Breezy
As Friday night approaches, the weather will definitely shift. It's going to become "wet and breezy" as rain moves in from the west. If you're in the southeast, you might get a brief break, as the rain could hold off until morning. But for everyone else, especially in the west and north, be prepared. The rain is expected to be "very heavy and persistent at times." This isn't just a light sprinkle; we're talking about proper, soaking rain.
Along with the heavy rain, southwesterly winds will strengthen, becoming moderate to fresh and gusty. Near the coasts, expect even stronger winds. This combination of heavy rain and gusty winds means it won't be a pleasant night to be out. Lowest temperatures tonight will be between 10 and 15 degrees, so it won't be freezing, but the wet and windy conditions will certainly make it feel colder.
Looking Ahead to the Weekend: Saturday's Mixed Bag
Saturday, September 12th, will begin with continued wet and breezy conditions. The rain will gradually clear southwards through the morning, but Met Éireann suggests it might "linger in the south for much of the day." So, if you're in Munster or the southern parts of Leinster, don't be surprised if the rain sticks around longer.
Further north, once the rain passes, we can expect drier conditions to develop. This will come with scattered showers and, hopefully, some brighter spells. So, while the morning might be a washout for many, there's a chance of improvement for the afternoon, especially in the northern half of the country.
Temperatures on Saturday will be a touch warmer than Friday, ranging from 16 to 21 degrees. The moderate to fresh southwesterly winds will ease as the rain clears, which will be a welcome change.
National Outlook: A Mixed Bag Continues
The national outlook for the rest of the weekend and into next week points to continued mixed conditions. We're going to see periods of dry and bright weather interspersed with wet or showery spells. It's typical Irish autumn weather, really; a bit of everything. It will also be breezy at times, and we're looking at cooler temperatures from Tuesday onwards.
Saturday Night: Any lingering rain in the south should clear early, leading to a mostly dry night with a mix of cloud and clear spells. There might be an "odd light shower about," and some mist and fog patches will develop as winds ease. Lowest temperatures will be between 9 and 13 degrees.
Sunday: Many places will stay dry on Sunday, with just a few light showers. It will be quite cloudy, but we should see some sunny spells breaking through. Temperatures will range from 16 to 21 degrees, with Ulster being the coolest. A light to moderate south to southwest breeze will be present.
Sunday Night: Starting mostly dry with a mix of cloud and clear spells, and a few showers. However, rain will arrive into Atlantic coastal areas towards morning. It's set to be a mild night, with lowest temperatures of 12 to 14 degrees and a light to moderate south to southwest breeze.
Monday: Current indications suggest a wet and breezy start to the week, with widespread rain that could be heavy and persistent at times. The rain will clear eastwards during the afternoon, making way for sunny spells and scattered showers. Highest temperatures will be 17 to 21 degrees, with moderate to fresh southwesterly winds veering westerly as the rain clears.
Tuesday: This day looks set to be fresh and breezy, with sunny spells and scattered showers. These showers will mainly affect the west and north. It will be cooler than previous days, with highest temperatures of 14 to 18 degrees and a moderate to fresh northwesterly breeze.
The "further outlook" suggests that the mixed conditions will continue for the rest of the working week. Expect showers or spells of rain each day, but also some drier and brighter periods. It will remain breezy at times, with maximum temperatures generally in the mid-teens.
So, for those of us in Ireland, this Friday offers a bit of a last hurrah of brighter weather before the more unsettled conditions take hold for the weekend and into next week. It's a classic September pattern, really. Make sure to check the latest updates on the official Met Éireann website if you're planning anything that depends on the weather, especially with that heavy rain due tonight. We might be heading into a wetter period, but there are still those brighter spells to look forward to.
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