Bracknagh has warmer summer afternoons than 91% of Irish towns
Midwinter brings lows of about 2.0°C. Winter and summer sit 18°C apart. In January, nights here are colder than in 90% of Irish towns. Plan time outside from June to September, when highs sit at 18–20°C.
Met Éireann 1991–2020 averages for the town’s own square kilometre.
A year in Bracknagh at a glance
Each month’s typical high and low, in °C.
What stands out about Bracknagh’s climate
Compared with Irish towns, with its place among towns of 2,500+ in County Offaly beside it.
What a year in Bracknagh feels like
Typical highs and lows by season and by month, from Met Éireann’s 1991–2020 averages.
About 882 mm of rain a year
October is the wettest month and May the driest. 5th wettest of 5 towns of 2,500+ in County Offaly. The wettest month brings about 1.6 times the rain of the driest.
Rain by month
Millimetres
Living with Bracknagh’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; Bracknagh’s hazards page covers the risks.
Flood & hazards →Met Éireann’s nearest station: Mullingar
Mullingar is 41 km north-west of Bracknagh, the nearest of the 25 synoptic stations where Met Éireann records the weather around the clock. The station stands 101 m above sea level; Bracknagh’s centre, 66 m.
| Month | High | Low | Rain | Air frosts |
|---|---|---|---|---|
| January | 7.6°C | 1.8°C | 91 mm | 8.7 |
| February | 8.3°C | 1.7°C | 77 mm | 8.7 |
| March | 10.1°C | 2.4°C | 69 mm | 7.2 |
| April | 12.6°C | 3.8°C | 70 mm | 3.0 |
| May | 15.3°C | 6.3°C | 66 mm | 0.4 |
| June | 17.8°C | 8.9°C | 75 mm | 0.0 |
| July | 19.2°C | 10.8°C | 80 mm | 0.0 |
| August | 18.9°C | 10.4°C | 85 mm | 0.0 |
| September | 16.9°C | 8.5°C | 76 mm | 0.1 |
| October | 13.4°C | 6.0°C | 99 mm | 1.8 |
| November | 10.0°C | 3.5°C | 99 mm | 5.2 |
| December | 7.8°C | 2.0°C | 100 mm | 8.2 |
| Year | 13.2°C | 5.5°C | 986 mm | 43 |
The table is Mullingar’s own record, averaged over 1991–2020 from its daily readings (ours, not a Met Éireann table). The rest of the page is Met Éireann’s 1 km grid at Bracknagh itself: past 40 km, the station’s frosts and sunshine don’t stand for the town.
How Bracknagh 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 Offaly.
Warmer than it used to be
Bracknagh’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 882 mm, up 3% from 856 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.
Bracknagh and its neighbours
Every town next door is within half a degree of Bracknagh 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.
| Town | July high | January low | Rain a year |
|---|---|---|---|
| Bracknagh | 20.2°C | 2.0°C | 882 mm |
| Rathangan 7.0 km | 20.0°C about the same | 1.9°C about the same | 887 mm |
| Monasterevin 8.1 km | 20.2°C about the same | 2.0°C about the same | 868 mm |
| Portarlington 8.2 km | 20.2°C about the same | 2.0°C about the same | 896 mm |
| Kildare 14 km | 19.9°C about the same | 1.8°C about the same | 896 mm |
| Edenderry 15 km | 20.0°C about the same | 2.0°C about the same | 902 mm |
| Daingean 16 km | 19.9°C about the same | 1.9°C about the same | 928 mm |
Each town’s colour is Met Éireann’s 1 km grid at its own centre, so towns a few kilometres apart can differ.
Bracknagh 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 | 8.2°C | 2.0°C | 5.1°C | 80 mm |
| February | 8.9°C | 1.9°C | 5.4°C | 65 mm |
| March | 10.7°C | 2.9°C | 6.8°C | 61 mm |
| April | 13.3°C | 4.3°C | 8.8°C | 60 mm |
| May | 16.1°C | 6.8°C | 11.5°C | 59 mm |
| June | 18.7°C | 9.5°C | 14.1°C | 69 mm |
| July | 20.2°C | 11.4°C | 15.8°C | 71 mm |
| August | 19.8°C | 11.1°C | 15.4°C | 80 mm |
| September | 17.6°C | 9.2°C | 13.4°C | 70 mm |
| October | 14.0°C | 6.5°C | 10.2°C | 92 mm |
| November | 10.5°C | 3.9°C | 7.2°C | 90 mm |
| December | 8.4°C | 2.2°C | 5.3°C | 86 mm |
| Year | 13.9°C | 6.0°C | 9.9°C | 882 mm |
Where Bracknagh’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 Bracknagh’s population centre (0.4 km away).
- Weather station: the nearest of Met Éireann’s 25 synoptic stations, Mullingar, 41 km north-west, from Met Éireann’s station list.
- Frosts and degree days: Mullingar’s daily readings, 1991–2020, 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 Bracknagh’s climate
How warm does Bracknagh get in summer?
July is the warmest month, with average highs of 20.2°C.
How cold does Bracknagh get in winter?
The coldest nights come in February, averaging 1.9°C. Met Éireann counts frosts only at its weather stations, so there is no frost count for the town itself.
How much rain does Bracknagh get?
About 882 mm a year, less than 58% of Irish towns. October is the wettest month (92 mm) and May the driest (59 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 Bracknagh itself. Its nearest synoptic station is Mullingar.
Are these figures for Bracknagh itself?
Yes: they are Met Éireann’s 1991–2020 averages on its 1 km grid, read at Bracknagh’s population centre. The nearest of its synoptic weather stations, Mullingar, is 41 km north-west.
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 Bracknagh’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 Bracknagh →
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).