Storm-Floris-1200x675 Storm Floris to Bring Strong Winds and Heavy Rain

Met Éireann has issued a weather advisory warning of stormy conditions expected across Ireland on Sunday night and Bank Holiday Monday due to Storm Floris.

The storm is forecast to bring heavy rain and unseasonably strong winds, posing several risks throughout the country.

The strongest winds are likely to affect the north and west of Ireland, as well as high ground elsewhere. The core period of strongest winds is expected during the first half of Monday, with blustery conditions persisting throughout the rest of the day.

Latest model outputs suggest wind gusts could exceed 90 to 100 km/h in the far northwest, which is relatively unusual but not rare for Ireland in August.

For context, on August 1st, 1986, a gust of 115 km/h was recorded at Malin Head, Donegal. More recently, Storm Ellen produced a gust of 143 km/h at Cork (Roches Point) on August 19th, 2020. Another notable August event was Hurricane Charley, which struck Ireland on August 25th, 1986, causing widespread flooding and damage, particularly along the east coast.

Arpege-1200x675 Storm Floris to Bring Strong Winds and Heavy Rain — Maximum wind gusts on Monday. Credit **Meteociel/Arpege**

Authorities have highlighted a range of potential impacts from Storm Floris, including dangerous travelling conditions, disruptions to outdoor events, structural damage, fallen trees, debris and loose objects, power outages, wave overtopping on coastal areas, and localised flooding due to blocked drains from fallen leaves.

The advisory is valid until 13:00 on Monday, 4 August 2025. Met Éireann plans to issue official warnings on Saturday, with further updates to follow as the situation develops.

Calmer and drier conditions are expected to return on Tuesday and much of Wednesday, providing some relief after the unsettled weather.

Floris at least the sixth named storm of the season, following a notably active winter:

Storm Ashley in October brought coastal flooding and gusts of up to 137 km/h.
Storm Bert followed in November, mixing heavy rain with wintry weather.
In December, Storm Darragh lashed the country with violent storm-force winds and widespread power outages.
Storm Éowyn, which struck in January, was the most severe, with gusts nearing 185 km/h and red-level warnings issued nationwide.