Midwinter lows in Dundrum sink below those of 81% of Irish towns
Peak summer warmth arrives in July, with afternoons near 19.8°C. It is a wet place: more rain falls here than on 73% of Irish towns. Compared with 1981–2010, the average now sits 0.2°C higher. Long walks are most pleasant from June to September, when afternoons reach 18–20°C.
Met Éireann 1991–2020 averages for the town’s own square kilometre.
A year in Dundrum at a glance
Each month’s typical high and low, in °C.
What stands out about Dundrum’s climate
Compared with Irish towns, with its place among towns of 2,500+ in County Tipperary beside it.
What a year in Dundrum feels like
Typical highs and lows by season and by month, from Met Éireann’s 1991–2020 averages.
About 1,098 mm of rain a year
December is the wettest month and May the driest. 4th wettest of 10 towns of 2,500+ in County Tipperary. The wettest month brings about 1.7 times the rain of the driest.
Rain by month
Millimetres
Living with Dundrum’s climate
What the averages mean for a garden, a free afternoon and a bad-weather day.
Highs of 17–27°C with lows of 8°C or more: Jun, Jul, Aug and Sep.
Parks & trails →Averages smooth over storms, floods and heatwaves; Dundrum’s hazards page covers the risks.
Flood & hazards →Met Éireann’s nearest station: Moore Park
Moore Park is 46 km south of Dundrum, the nearest of the 25 synoptic stations where Met Éireann records the weather around the clock. The station stands 46 m above sea level; Dundrum’s centre, 97 m.
| Month | High | Low | Rain | Air frosts |
|---|---|---|---|---|
| January | 9.0°C | 2.4°C | 111 mm | 8.8 |
| February | 9.1°C | 2.1°C | 77 mm | 8.7 |
| March | 10.7°C | 2.4°C | 78 mm | 7.6 |
| April | 13.3°C | 4.3°C | 67 mm | 2.8 |
| May | 15.9°C | 7.0°C | 61 mm | 0.3 |
| June | 18.6°C | 9.7°C | 76 mm | 0.0 |
| July | 19.8°C | 11.5°C | 77 mm | 0.0 |
| August | 19.2°C | 10.9°C | 90 mm | 0.0 |
| September | 17.5°C | 9.0°C | 77 mm | 0.1 |
| October | 14.4°C | 6.7°C | 107 mm | 1.1 |
| November | 10.9°C | 4.0°C | 107 mm | 5.3 |
| December | 9.3°C | 2.9°C | 113 mm | 8.3 |
| Year | 14.0°C | 6.1°C | 1,041 mm | 43 |
The table is Moore Park’s own record, averaged over 2004–2020 from its daily readings (ours, not a Met Éireann table). The rest of the page is Met Éireann’s 1 km grid at Dundrum itself: past 40 km, the station’s frosts and sunshine don’t stand for the town.
How Dundrum compares
Against the 321 Irish towns and city neighbourhoods of 2,500 or more, each read from Met Éireann’s grid at its own centre, and its place among towns of 2,500+ in County Tipperary.
Warmer than it used to be
Dundrum’s 1991–2020 average is 0.2°C warmer than 1981–2010’s. The biggest change is in February (+0.4°C).
A year’s rain is 1,098 mm, up 4% from 1,056 mm.
Change by month
The two periods share 1991–2010, so the gap is a decade’s step, not the change between two separate 30-year periods.
Dundrum and its neighbours
Every town next door is within half a degree of Dundrum in January and July. Choose a measure to recolour the map; tap a town for its climate.
The towns next door, side by side
The nearest towns of 1,000+ within 19 km: a hill, a valley or the sea can make a real difference over a short distance.
Each town’s colour is Met Éireann’s 1 km grid at its own centre, so towns a few kilometres apart can differ.
Dundrum weather by month
Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (Met Éireann’s 1 km grid).
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 8.4°C | 2.2°C | 5.3°C | 110 mm |
| February | 9.0°C | 2.1°C | 5.6°C | 88 mm |
| March | 10.7°C | 3.0°C | 6.8°C | 81 mm |
| April | 13.3°C | 4.5°C | 8.9°C | 72 mm |
| May | 16.0°C | 6.9°C | 11.4°C | 69 mm |
| June | 18.5°C | 9.5°C | 14.0°C | 77 mm |
| July | 19.8°C | 11.5°C | 15.6°C | 77 mm |
| August | 19.6°C | 11.2°C | 15.4°C | 91 mm |
| September | 17.5°C | 9.2°C | 13.4°C | 84 mm |
| October | 14.0°C | 6.7°C | 10.4°C | 112 mm |
| November | 10.7°C | 4.0°C | 7.3°C | 115 mm |
| December | 8.7°C | 2.5°C | 5.6°C | 120 mm |
| Year | 13.9°C | 6.1°C | 10.0°C | 1,098 mm |
Where Dundrum’s numbers come from
Averages over 30 years, not a forecast.
- Temperature and rain: Met Éireann’s 1991–2020 averages on its 1 km grid (Climatological Notes 22 and 23), read at the grid point nearest Dundrum’s population centre (0.3 km away).
- Weather station: the nearest of Met Éireann’s 25 synoptic stations, Moore Park, 46 km south, from Met Éireann’s station list.
- Frosts and degree days: Moore Park’s daily readings, 2004–2020, in the station table only: past 40 km they don’t stand for the town.
- Then and now: Met Éireann’s 1981–2010 averages on the same 1 km grid, at the same point.
- Altitudes: the town’s ground from the Copernicus GLO-30 surface model (a few metres high in built-up places), the station’s from Met Éireann.
- Comparisons: every Irish town and city neighbourhood of 2,500 or more, read the same way; the five city totals are left out.
- Not on this page: sunshine, frost days, warm days, snow and wind. Met Éireann publishes no 1991–2020 grid for them, only tables for its stations, so no town has a figure of its own.
Met Éireann 30-year averages · Met Éireann open data. Under Creative Commons Attribution 4.0 (CC BY 4.0).
Questions about Dundrum’s climate
How warm does Dundrum get in summer?
July is the warmest month, with average highs of 19.8°C.
How cold does Dundrum get in winter?
The coldest nights come in February, averaging 2.1°C. Met Éireann counts frosts only at its weather stations, so there is no frost count for the town itself.
How much rain does Dundrum get?
About 1,098 mm a year, more than 73% of Irish towns. December is the wettest month (120 mm) and May the driest (69 mm).
How sunny is it?
Met Éireann publishes its 1991–2020 sunshine averages for its weather stations only, not on the 1 km grid this page reads, so there is no sunshine figure for Dundrum itself. Its nearest synoptic station is Moore Park.
Are these figures for Dundrum itself?
Yes: they are Met Éireann’s 1991–2020 averages on its 1 km grid, read at Dundrum’s population centre. The nearest of its synoptic weather stations, Moore Park, is 46 km south.
Where do these figures come from?
Met Éireann’s 1991–2020 climate averages, published as maps of Ireland in 1 km squares (Climatological Notes 22 and 23); the page reads the square at Dundrum’s population centre. They are 30-year averages, not a forecast.
Copyright Met Éireann. Source: www.met.ie. This data is published under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Met Éireann does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use. This material has been modified from the original: TownRatings reads the 1 km grid at each town’s population centre. Today’s forecast for Dundrum →
Contains Central Statistics Office (CSO) data, Census 2022, and Tailte Éireann boundaries (CSO Urban Areas, Small Areas, local electoral areas, constituencies), under Creative Commons Attribution 4.0 (CC BY 4.0).