Photo: David Hawgood · CC BY-SA 2.0Nights stay kind in Grange each January, milder than in 75% of Irish towns
The warmest part of a July day comes in at 19.9°C on average. The rainiest month is October; the driest is May. Radiators earn their keep from November to April, the months that average under 10°C.
Met Éireann 1991–2020 averages for the town’s own square kilometre.
A year in Grange at a glance
Each month’s typical high and low, in °C.
What stands out about Grange’s climate
Compared with Irish towns, with its place among towns and neighbourhoods of 2,500+ in County Waterford beside it.
What a year in Grange feels like
Typical highs and lows by season and by month, from Met Éireann’s 1991–2020 averages.
About 1,015 mm of rain a year
October is the wettest month and May the driest. 10th wettest of 12 towns and neighbourhoods of 2,500+ in County Waterford. The wettest month brings about 1.8 times the rain of the driest.
Rain by month
Millimetres
Living with Grange’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; Grange’s hazards page covers the risks.
Flood & hazards →Met Éireann’s nearest station: Johnstown Castle
Johnstown Castle is 41 km east of Grange, the nearest of the 25 synoptic stations where Met Éireann records the weather around the clock. The station stands 62 m above sea level; Grange’s centre, 49 m.
| Month | High | Low | Rain | Air frosts |
|---|---|---|---|---|
| January | 8.3°C | 3.3°C | 97 mm | 3.6 |
| February | 8.5°C | 3.3°C | 79 mm | 3.0 |
| March | 9.6°C | 3.5°C | 72 mm | 2.3 |
| April | 11.8°C | 5.4°C | 64 mm | 0.2 |
| May | 14.4°C | 7.8°C | 59 mm | 0.0 |
| June | 17.0°C | 10.5°C | 77 mm | 0.0 |
| July | 18.6°C | 12.2°C | 77 mm | 0.0 |
| August | 18.2°C | 11.8°C | 87 mm | 0.0 |
| September | 16.6°C | 10.4°C | 73 mm | 0.0 |
| October | 13.9°C | 8.3°C | 123 mm | 0.0 |
| November | 10.6°C | 5.6°C | 118 mm | 1.1 |
| December | 8.9°C | 3.9°C | 123 mm | 3.7 |
| Year | 13.0°C | 7.2°C | 1,048 mm | 14 |
The table is Johnstown Castle’s own record, averaged over 2008–2020 from its daily readings (ours, not a Met Éireann table). The rest of the page is Met Éireann’s 1 km grid at Grange itself: past 40 km, the station’s frosts and sunshine don’t stand for the town.
How Grange 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 and neighbourhoods of 2,500+ in County Waterford.
Warmer than it used to be
Grange’s 1991–2020 average is 0.2°C warmer than 1981–2010’s. The biggest change is in April (+0.4°C).
A year’s rain, 1,015 mm, is about the same as before.
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.
Grange and its neighbours
Every town next door is within half a degree of Grange 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 |
|---|---|---|---|
| Grange | 19.9°C | 3.3°C | 1,015 mm |
| Grange Upper 0.7 km | 19.9°C about the same | 3.1°C about the same | 1,019 mm |
| Ballytruckle 1.3 km | 20.1°C about the same | 3.4°C about the same | 1,013 mm |
| Grantstown and Ballinakill 1.6 km | 19.8°C about the same | 3.2°C about the same | 1,021 mm |
| Poleberry 2.1 km | 20.2°C about the same | 3.3°C about the same | 1,018 mm |
| Waterford City Centre 2.4 km | 20.3°C about the same | 3.4°C about the same | 1,008 mm |
| Kilbarry 3.0 km | 20.2°C about the same | 3.5°C about the same | 1,023 mm |
Each town’s colour is Met Éireann’s 1 km grid at its own centre, so towns a few kilometres apart can differ.
Grange 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 | 9.1°C | 3.3°C | 6.2°C | 96 mm |
| February | 9.5°C | 3.2°C | 6.3°C | 73 mm |
| March | 10.9°C | 4.1°C | 7.5°C | 71 mm |
| April | 13.0°C | 5.5°C | 9.3°C | 71 mm |
| May | 15.7°C | 7.9°C | 11.8°C | 65 mm |
| June | 18.3°C | 10.5°C | 14.4°C | 72 mm |
| July | 19.9°C | 12.3°C | 16.1°C | 74 mm |
| August | 19.8°C | 12.0°C | 15.9°C | 81 mm |
| September | 17.8°C | 10.3°C | 14.1°C | 80 mm |
| October | 14.5°C | 8.0°C | 11.2°C | 116 mm |
| November | 11.4°C | 5.1°C | 8.3°C | 111 mm |
| December | 9.5°C | 3.7°C | 6.6°C | 106 mm |
| Year | 14.1°C | 7.2°C | 10.6°C | 1,015 mm |
Where Grange’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 Grange’s population centre (0.2 km away).
- Weather station: the nearest of Met Éireann’s 25 synoptic stations, Johnstown Castle, 41 km east, from Met Éireann’s station list.
- Frosts and degree days: Johnstown Castle’s daily readings, 2008–2020, 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 Grange’s climate
How warm does Grange get in summer?
July is the warmest month, with average highs of 19.9°C.
How cold does Grange get in winter?
The coldest nights come in February, averaging 3.2°C. Met Éireann counts frosts only at its weather stations, so there is no frost count for the town itself.
How much rain does Grange get?
About 1,015 mm a year, more than 57% of Irish towns. October is the wettest month (116 mm) and May the driest (65 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 Grange itself. Its nearest synoptic station is Johnstown Castle.
Are these figures for Grange itself?
Yes: they are Met Éireann’s 1991–2020 averages on its 1 km grid, read at Grange’s population centre. The nearest of its synoptic weather stations, Johnstown Castle, is 41 km east.
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 Grange’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 Grange →
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).