Mountcollins is among the wettest of Irish towns: 1,427 mm of rain a year
July afternoons average 19.1°C. December is the wettest month, May the driest. Summers stay cool: July afternoons here are cooler than in 94% of Irish towns. Keep the boiler serviced for the months from November to April, which average under 10°C.
Met Éireann 1991–2020 averages for the town’s own square kilometre.
A year in Mountcollins at a glance
Each month’s typical high and low, in °C.
What stands out about Mountcollins’s climate
Compared with Irish towns, with its place among towns and neighbourhoods of 2,500+ in County Limerick beside it.
What a year in Mountcollins feels like
Typical highs and lows by season and by month, from Met Éireann’s 1991–2020 averages.
About 1,427 mm of rain a year
December is the wettest month and May the driest. The wettest of 16 towns and neighbourhoods of 2,500+ in County Limerick. The wettest month brings about 2.1 times the rain of the driest.
Rain by month
Millimetres
Living with Mountcollins’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; Mountcollins’s hazards page covers the risks.
Flood & hazards →Met Éireann’s nearest station: Shannon Airport
Shannon Airport is 46 km north-east of Mountcollins, the nearest of the 25 synoptic stations where Met Éireann records the weather around the clock. The station stands 15 m above sea level; Mountcollins’s centre, 136 m.
| Month | High | Low | Rain | Air frosts | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.9°C | 3.5°C | 103 mm | 4.5 | 52 |
| February | 9.5°C | 3.4°C | 87 mm | 4.2 | 69 |
| March | 11.1°C | 4.1°C | 77 mm | 2.8 | 111 |
| April | 13.6°C | 5.6°C | 62 mm | 0.8 | 162 |
| May | 16.2°C | 8.1°C | 63 mm | 0.0 | 183 |
| June | 18.5°C | 10.7°C | 69 mm | 0.0 | 165 |
| July | 19.6°C | 12.6°C | 76 mm | 0.0 | 135 |
| August | 19.4°C | 12.4°C | 88 mm | 0.0 | 143 |
| September | 17.7°C | 10.6°C | 77 mm | 0.0 | 118 |
| October | 14.4°C | 8.0°C | 95 mm | 0.4 | 93 |
| November | 11.2°C | 5.5°C | 107 mm | 1.6 | 62 |
| December | 9.2°C | 3.9°C | 115 mm | 4.0 | 46 |
| Year | 14.1°C | 7.4°C | 1,020 mm | 18 | 1,338 |
The table is Shannon Airport’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 Mountcollins itself: past 40 km, the station’s frosts and sunshine don’t stand for the town.
How Mountcollins 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 Limerick.
Warmer than it used to be
Mountcollins’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 is 1,427 mm, up 3% from 1,389 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.
Mountcollins and its neighbours
Castleisland has the warmest July afternoons (19.7°C, 0.6°C warmer). 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 |
|---|---|---|---|
| Mountcollins | 19.1°C | 2.5°C | 1,427 mm |
| Abbeyfeale 8.8 km | 19.5°C about the same | 3.0°C 0.5°C milder | 1,332 mm |
| Newcastle West 18 km | 19.6°C 0.5°C warmer | 2.9°C about the same | 1,206 mm |
| Castleisland 19 km | 19.7°C 0.6°C warmer | 3.4°C 0.9°C milder | 1,339 mm |
| Newmarket 19 km | 19.2°C about the same | 2.4°C about the same | 1,324 mm |
Each town’s colour is Met Éireann’s 1 km grid at its own centre, so towns a few kilometres apart can differ.
Mountcollins 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 | 8.5°C | 2.5°C | 5.5°C | 160 mm |
| February | 9.0°C | 2.4°C | 5.7°C | 126 mm |
| March | 10.7°C | 3.1°C | 6.9°C | 105 mm |
| April | 13.1°C | 4.4°C | 8.7°C | 92 mm |
| May | 15.7°C | 6.8°C | 11.2°C | 81 mm |
| June | 18.0°C | 9.4°C | 13.7°C | 85 mm |
| July | 19.1°C | 11.3°C | 15.2°C | 92 mm |
| August | 19.0°C | 11.1°C | 15.0°C | 105 mm |
| September | 17.2°C | 9.3°C | 13.2°C | 108 mm |
| October | 13.9°C | 6.8°C | 10.4°C | 140 mm |
| November | 10.7°C | 4.4°C | 7.5°C | 167 mm |
| December | 8.9°C | 2.9°C | 5.9°C | 167 mm |
| Year | 13.7°C | 6.2°C | 9.9°C | 1,427 mm |
Where Mountcollins’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 Mountcollins’s population centre (0.3 km away).
- Weather station: the nearest of Met Éireann’s 25 synoptic stations, Shannon Airport, 46 km north-east, from Met Éireann’s station list.
- Frosts and degree days: Shannon Airport’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 Mountcollins’s climate
How warm does Mountcollins get in summer?
July is the warmest month, with average highs of 19.1°C.
How cold does Mountcollins get in winter?
The coldest nights come in February, averaging 2.4°C. Met Éireann counts frosts only at its weather stations, so there is no frost count for the town itself.
How much rain does Mountcollins get?
About 1,427 mm a year, more than 98% of Irish towns. December is the wettest month (167 mm) and May the driest (81 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 Mountcollins itself. Its nearest synoptic station is Shannon Airport.
Are these figures for Mountcollins itself?
Yes: they are Met Éireann’s 1991–2020 averages on its 1 km grid, read at Mountcollins’s population centre. The nearest of its synoptic weather stations, Shannon Airport, is 46 km north-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 Mountcollins’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 Mountcollins →
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).