Forecast issued at: Thursday 18th September 2025 13:00
Rain
Rainfall amounts were above average across the country during the past seven days. The least amount of rainfall was recorded at Dublin Airport where 21.4mm (152% of average) was recorded. The wettest station was Knock Airport, Co. Mayo where 88.3mm (340% of average) was recorded. There will be varying amounts of rainfall across Ireland over the coming days due to a slow-moving frontal boundary. Eastern and southern counties are likely to see significant rainfall amounts, especially on Friday night and Saturday. Meanwhile further west and north, rainfall will be more showery in nature. There is now a strong signal for a dry period of weather nationwide from Monday through Wednesday of next week.
Temperatures
Mean air temperatures for the last seven days were below average. The warmest station at 13.9 degrees, was at Roches Point, Co. Cork while the lowest was 11.6 degrees recorded in Co. Mayo. Mean air temperatures are forecast to continue to trend slightly below normal for the coming week, ranging from 10 to 12 degrees generally. After a relatively mild few days, it will turn much cooler early next week. Soil temperatures were average or slightly above average during the past 7 days, ranging from 12.3 to just under 15 degrees and are expected to stay similar for the coming week.
Sunshine
Sunshine amounts were near to or above average across most of the country during the past seven days. The dullest location was Valentia in County Kerry where there was 21 hours of sunshine (77% of average) recorded. In contrast, 45.1 hours (146% of average) were recorded Johnstown Castle in County Wexford. With unsettled and mixed conditions forecast for the coming days, sunshine amounts will likely be close to or slightly below normal for most stations. There will be more in the way of sunshine early next week as a fresh northerly air-flow becomes established over Ireland.
Drying Conditions
Poor drying conditions over the next few days across the country with spells of rain and showers forecast. Better drying conditions are likely to develop early next week as high pressure builds near Ireland.
Spraying
There will be limited opportunities for spraying over the coming days. Opportunities for spraying are likely early next week.
Field Conditions
Soils are currently driest in parts of Leinster and east Munster where soil moisture deficits (SMDs) are between 10 and 25mm. In contrast, soil moisture deficits are between 0 and -10mm elsewhere, i.e. saturated or waterlogged. With rain and showers forecast for the coming days, soils across the country which are not already saturated or waterlogged are expected to become so.
Further Comments
Weather conditions conducive to the spread of blight will develop in parts of Munster and south Leinster through until Saturday. Forecast maps and meteograms can be found on Blight Forecast.
