Dry Start to Autumn Before Wetter Weather Looms

High pressure is expected to dominate the weather in Ireland during the final days of September and the first days of October, bringing generally settled and dry conditions across much of the country.

That is according to Met Éireann, which, in its latest extended outlook, says there is a chance that low pressure systems may edge closer later in the week, particularly in northern and western areas, which could bring some scattered rain. Overall, rainfall is likely to be below average, and temperatures are expected to be a little above normal, though southern counties may see conditions closer to seasonal norms.

Looking ahead to the first full week of October, high pressure to the southwest is likely to remain the main influence on Ireland’s weather. While low pressure may occasionally affect the north, much of the country should see dry spells and sunshine. Rainfall is expected to remain below average, and temperatures will settle around seasonal averages, slightly cooler than the opening week of the outlook.

By mid-October, however, the weather is expected to become more changeable. Dry spells are likely to alternate with wetter periods, and rainfall may exceed the seasonal norm in some areas. Temperatures should remain near average for the time of year, offering a mix of mild days and cooler autumnal conditions.

Confidence in the outlook drops in the final week of October, but current indications suggest that low pressure may take a more dominant role. This could bring periods of wet and blustery weather, particularly to northern and northwestern counties. Temperatures are likely to stay close to seasonal averages, though winds may make conditions feel more unsettled at times.

Overall, the extended outlook points to a mostly dry start to the autumn, with settled conditions gradually giving way to more variable and wetter weather as the month progresses, while temperatures hover near seasonal norms.