Ireland Climate – June 2026 Update
Top 5 Cities: Dublin, Cork, Galway, Limerick, and Waterford
This month in numbers
Ireland experienced its 13th warmest June on record, with an average temperature of 14.53°C, an anomaly of +1.3°C compared to the 1961–1990 baseline. Globally, June 2026 ranked as the 3rd warmest June on record for land temperatures, with an anomaly of +1°C.
What changed
The period of April to June 2026 was exceptionally warm for Ireland, ranking as the 2nd warmest on record with an average temperature of 12.6°C, a significant +2.1°C above the 1961–1990 baseline. This trend aligns with the global picture, as global land temperatures for the same three-month period also ranked 2nd warmest on record. Ireland's June anomaly of +1.31°C placed it 105th out of 234 regions globally for the month.
What’s driving change?
A significant warming driver for Ireland in June was a heat dome that developed over Western Europe, bringing exceptionally high daytime and nighttime temperatures and high humidity towards the end of the month. This resulted in numerous stations breaking their June maximum and minimum temperature records, with some even setting all-time records. The current weak El Niño, with a Niño 3.4 SST anomaly of +1.8°C, is also a factor, as El Niño conditions generally lead to higher global mean temperatures. While El Niño's direct influence on Ireland is typically weak, it can contribute to a tendency for warmer conditions.
Looking ahead
The forecast indicates a 100% probability of El Niño conditions persisting through the end of 2026, which, combined with the underlying global warming trend, has the potential to lead to record high global mean temperatures in the coming months.
Sources:
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
Year-on-Year Trends
The 4byo Climate Helix – Ireland
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Ireland – Monthly Temperature – All Years
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Records – Ireland
Our World in Data / NOAA - Anomalies vs 1901-2000 mean
Shifting Seasons
Warm / cold seasonsKöppen Cfb · TemperateHow spring and autumn have shifted in Ireland. Spring is defined as the date monthly temperatures first rise above the long-term annual mean (9.6°C, from 1940–1969); autumn is the date they fall back below it. Temperature swings 10.1°C peak-to-peak across the year - a classic four-seasons rhythm.
Baseline vs recent monthly temperature climatology. Biggest warming: Feb (+1.5°C).
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Rainfall & Precipitation
Rainfall & Rain Days – Totals
Headline: anomaly vs the 1961–1990 mean. Small figure: the actual value. Rank: position in the full record (1st = highest ever). Record: highest (or lowest) value on record with its year.
Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for Ireland
Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) - see the Methodology & Sources page for the complete dataset list and update calendar.
FAQs
FAQs
How is the climate in Ireland changing?
Ireland is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The headline panel also shows the long-term trend rate per decade and the warmest and coolest years on file.
Where does the climate data for Ireland come from?
Climate data for Ireland comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.
What is the climate baseline used on this page?
Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.
Which areas does the Ireland climate data cover?
The Ireland climate profile covers Dublin, Cork, Galway, Limerick and surrounding areas. Atlantic storms, shifting rainfall and rising temperatures across the island
How often is the Ireland climate update refreshed?
The Ireland climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.