As August ends and September begins, Ireland's weather forecast for Monday, August 31, 2026, predicts varied conditions. Whether you're getting ready for the kids to go back to school or trying to fit in one last summer outing, it helps to know what the weather has in store. The day should start mostly dry for many areas, with some bright periods, but it's clear that unsettled weather is on its way.

Today's Overview: Monday, August 31

The morning is expected to bring a good amount of dry weather across much of the country. Many places might even see some bright or sunny spells, which is always a nice bonus. However, it won't be completely clear, as there will be a few scattered showers around. So, if you're thinking of hanging laundry outside, you might want to keep an eye on the sky.

As the day goes on, cloud cover will increase. This signals what's to come, with showery rain moving into the west and northwest later in the afternoon and into the evening. If you're in those regions, it's probably a good idea to have an umbrella handy.

Temperatures today will be mild for late August, ranging from 15 to 18 degrees Celsius. These are fairly typical for this time of year, not too hot, not too cold. Winds will be mostly moderate, occasionally fresh, from a westerly direction, gradually becoming light to moderate southwesterly later in the day. So, while it won't be a heatwave, it won't be freezing either.

What to Expect Tonight

Tonight, the weather remains a bit inconsistent. For those in the east and south, expect some clear spells, offering a chance to see the stars, along with a few scattered showers. Meanwhile, the north and west will be quite cloudy, with more scattered rain and drizzle. It sounds like a good night to stay indoors with a hot drink.

Overnight temperatures will drop to between 9 and 14 degrees Celsius. There will be a light to moderate southwesterly or variable breeze, which should prevent things from feeling too still. Watch out for some mist and fog patches developing, especially if you're driving early tomorrow morning. This Ireland weather forecast for tonight suggests a generally mild but damp end to the day.

Looking Ahead to Tomorrow: Tuesday, September 1

Tomorrow, Tuesday, September 1, marks the official start of autumn, and the weather seems to be following suit. The east and south might wake up to some bright or sunny spells early on, which is a pleasant way to begin the new month. However, for most of the country, it looks like a rather cloudy day.

Expect scattered rain and drizzle throughout the day. These are forecast to become heavy in parts of the north. If you're in the southwest, more wet weather is expected to develop later in the day. It's shaping up to be a classic Irish autumn day.

Highest temperatures tomorrow will range from 15 to 19 degrees Celsius, with the north being the coolest and the south feeling the warmest. A light to moderate southwesterly breeze will be present. So, while it's not exactly summer weather, it's not freezing either.

The Week Ahead: An Unsettled Outlook

The national Ireland weather forecast for the coming days paints a clear picture: unsettled is the theme of the week. We're looking at showers or more continuous periods of rain each day, and it will become breezy at times.

Tuesday night is set to become quite wet and breezy. Rain will move up from the southwest, turning heavy in some areas. It will feel quite humid, with lowest temperatures between 13 and 15 degrees Celsius. Moderate to fresh southwest winds are expected, becoming strong and gusty at times along the Atlantic coasts. By Wednesday morning, Munster should see conditions turn drier.

Wednesday itself will be a breezy day. The cloud and rain will clear northeastwards in the morning and early afternoon, making way for a mix of sunny spells and scattered showers from the southwest. This day looks to be warmer than the previous ones, with highest temperatures between 18 and 22 degrees Celsius, accompanied by moderate to fresh southwesterly winds.

Thursday brings some bright or sunny spells and a few showers before more widespread wet weather arrives from the Atlantic later in the day or overnight. Temperatures will be around 17 to 21 degrees Celsius, with moderate to fresh southwest winds easing off later.

Current indications suggest this unsettled pattern will continue into next weekend. It's also expected to turn a bit cooler and fresher as we head further into September. So, while we're saying goodbye to August, it seems autumn is ready to make its presence felt with a typical Irish welcome of changeable weather.

For the most up-to-date and detailed information, it's always a good idea to check the official Met Éireann website (https://www.met.ie/). Planning your week around the Ireland weather forecast is just part of living here, and it's clear we'll need to keep those raincoats and layers close by. Enjoy what's left of the dry spells!