Ireland Sees Warmest July Since 2021, No Frost Recorded
July 2025 was Ireland’s ninth warmest July and twelfth warmest month on record, with an average temperature of 16.59°C, according to Met Éireann.
This was 1.74°C above the 1961 to 1990 long-term average and 1.21°C above the 1991 to 2020 average, based on the Island of Ireland dataset.
Hot Spell and Warm Temperatures
A strong Azores High dominated mid-month, bringing a hot spell from the 10th to the 13th. Temperatures exceeded 27°C each day, with Mount Dillon, Co Roscommon, hitting 31.1°C on the 12th. Several stations recorded their highest July temperatures on record. July was the warmest month of 2025 so far and the hottest July since 2021.
Phoenix Park and Oak Park recorded the highest mean temperatures at 17.3°C. The lowest air temperature was 4.8°C at Claremorris on the 2nd. No frost was recorded.
This was the fifth month in a row with temperatures ranking in the top nine warmest on record.
Rainfall Varied Widely
National average rainfall was 96.0 mm, about 103 percent of the monthly average. Rainfall was above average in the East and West, but well below average in the South and parts of the Midlands.
Dunsany, Co Meath, recorded 55.4 mm on July 21st, the station’s highest July daily total on record. Casement Aerodrome and Gurteen, Co Tipperary, also broke daily July rainfall records.
The number of rain days ranged from 11 at Roches Point to 25 at Belmullet. Athenry, Co Galway, had the most very wet days with six.
Sunshine and Winds
Sunshine was plentiful early in the month. Johnstown Castle, Co Wexford, recorded the highest total with 189.7 hours. The Southeast was sunniest while the Northwest was dullest. Casement Aerodrome and Shannon Airport also recorded high sunshine totals.
Winds were mostly light. The highest gust of 76 km/h was recorded at both Mace Head and Sherkin Island. No gales or storms were reported.
Overview
July 2025 was warm, often sunny and relatively dry in the South but wetter in the East and West. It continued Ireland’s run of warmer-than-average months under the influence of dominant high pressure to the south and low pressure systems to the north.
