Today, Saturday, September 19, 2026, many in Ireland are likely wondering about the day's weather. Irish weather is famously unpredictable, so checking the forecast is almost a national pastime. Here's what Met Éireann is predicting for today, the rest of the weekend, and into next week.

Today: Bright and Breezy with Regional Showers

If you're heading out today, Saturday, September 19, expect a generally bright and breezy day. The sun will make an appearance, bringing some pleasant spells of sunshine across the country. However, it won't be entirely dry everywhere. The northern half of Ireland should prepare for scattered showers. Those further south will likely see plenty of dry weather.

Temperatures will range from 14 to 19 degrees Celsius. The northwest will be coolest, which makes sense given the showers. The south and southeast will feel the warmest, making it quite pleasant for any outdoor activities in those areas. Winds will be moderate to fresh, blowing from the southwest to west. They'll be stronger in the northwest, so hold onto your hats if you're there.

This type of day, bright but with a slight chill and some wind, is typical for September in Ireland. It's a transitional period where summer's warmth tries to linger, but autumn is definitely making its presence felt.

Tonight: Mostly Dry, Cloud Thickens in the South

As night approaches, showers will mostly fade, becoming confined mainly to the northwest and north. For most areas, it will be a dry evening with some clear spells, ideal for stargazing away from city lights.

However, a change is coming to the southwest and parts of the south. Cloud will begin to thicken there, possibly bringing an odd spot of drizzle. It won't be heavy, but noticeable. Lowest temperatures will range from 7 to 12 degrees. Winds will be light to moderate from the southwest to west, feeling a bit fresher at times in the west and northwest before easing off overnight. A light jacket will probably be a good idea, especially further north.

Sunday: Dry Start, Cloud Spreads

Sunday, September 20, looks set to begin with plenty of dry and bright weather, including sunny spells, particularly outside the southwest. This sounds like a nice start to the day.

But as the day progresses, the cloud that started gathering in the southwest will gradually spread northeastwards, covering most areas. This might bring occasional patches of drizzle or mist. Highest temperatures for Sunday will be between 14 and 20 degrees, with Ulster being the coolest region. Light variable breezes will eventually shift southerly. It seems like a day to get outdoor activities done in the morning before the clouds roll in.

The Week Ahead: Warm, Humid, and a Bit Mixed

Met Éireann's national outlook provides a broader picture for the start of next week, suggesting things will become warmer and more humid.

Sunday Night: Expect mostly cloudy skies with patches of rain and drizzle, mainly in the west. We'll also see some coastal and hill mist and fog. It will be a mild and humid night, with temperatures not dropping below 11 to 15 degrees. Light to moderate southerly breezes will be present.

Monday: The week begins with mostly cloudy conditions and some patches of light rain, drizzle, and mist. However, there will still be plenty of dry weather. We might even see some brighter or sunny spells develop as the day goes on. Monday is expected to be warmer and more humid than the weekend, with highest temperatures of 18 to 23 degrees. The warmest spots will be away from the southern and western coasts, with a light to moderate southwesterly breeze.

Monday Night: Many areas will be dry, but it will remain mostly cloudy with a few patches of drizzle and mist. This might become more persistent in the west and northwest towards morning. Another very mild and humid night is expected, with temperatures not dropping below 13 to 16 degrees, accompanied by light to moderate southerly breezes.

Tuesday: Southern and eastern parts of the country can look forward to a drier and brighter day with sunny spells. However, it will be cloudier towards the west and north, where some rain and drizzle are likely. Highest temperatures will be between 15 and 20 degrees, with the northwest being the coolest. A light to moderate south to southwest breeze will be present.

Wednesday: Current indications suggest that rain will clear eastwards early on, bringing drier and brighter conditions. It will be cooler than the preceding days, with highest temperatures ranging from 14 to 18 degrees, and a light to moderate northwesterly breeze.

Looking further ahead, the outlook suggests mixed conditions for the rest of the week and into next weekend. We can anticipate some spells of wet and breezy weather, with current indications pointing to Thursday and Sunday as potentially being the wettest. Drier spells are expected in between.

Preparing for Irish September

This Ireland weather forecast for Saturday, September 19, and the following days, really highlights the dynamic nature of our climate. One minute you're enjoying sunshine, the next you're dodging a shower. That's why we always recommend checking the most up-to-date information directly from Met Éireann before you head out, especially if your plans depend on good weather.

Whether you're planning a trip to the coast, a hike in the mountains, or just a stroll around your local park, knowing what the sky has in store can make all the difference. Layers are always useful in September, and a good waterproof jacket is never a bad idea.

So, enjoy your Saturday, and whatever the Ireland weather forecast brings, make the most of it. We'll keep you updated here on itson.ie with all the latest information.