Hardly any Irish towns see fresher July days than Bangor Erris
On a normal January night the air cools to about 3.3°C. Its yearly rainfall tops that of almost every Irish town. The latest 30-year average runs 0.2°C warmer than 1981–2010’s, with April up the most. Warm coats and heating bills mark the months from November to April, when means dip under 10°C.
Met Éireann 1991–2020 averages for the town’s own square kilometre.
A year in Bangor Erris at a glance
Each month’s typical high and low, in °C.
What stands out about Bangor Erris’s climate
Compared with Irish towns, with its place among towns of 2,500+ in County Mayo beside it.
What a year in Bangor Erris feels like
Typical highs and lows by season and by month, from Met Éireann’s 1991–2020 averages.
About 9 air frosts a year
Ground frosts, when the grass drops below 0°C, come on about 45 nights a year. Air frosts come mostly from December to March, most of all in January (about 3).
Air frosts by month
Average nights below 0°C
Ground frosts by month
Average nights with the grass below 0°C
Counted from Belmullet’s daily readings, 1991–2020, 20 km north-west of Bangor Erris: Met Éireann publishes these for its stations only.
About 1,500 mm of rain a year
December is the wettest month and June the driest. The wettest of 7 towns of 2,500+ in County Mayo. The wettest month brings about 2.0 times the rain of the driest. Belmullet records 1 mm or more on about 204 days a year, and 10 mm on about 35.
Rain by month
Millimetres
Sunshine by month
Hours, at Belmullet
Heating a home in Bangor Erris
83% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
Degree days add up how far each day’s mean temperature falls below 15.5°C over a year.
Living with Bangor Erris’s climate
What the averages mean for a garden, a free afternoon and a bad-weather day.
In half of years the last air frost at Belmullet comes by 1 March and the first by 7 December: about 281 frost-free days in between.
Highs of 17–27°C with lows of 8°C or more: Jul and Aug.
Parks & trails →Averages smooth over storms, floods and heatwaves; Bangor Erris’s hazards page covers the risks.
Flood & hazards →Met Éireann’s nearest station: Belmullet
Belmullet is 20 km north-west of Bangor Erris, the nearest of the 25 synoptic stations where Met Éireann records the weather around the clock. The station stands 9 m above sea level; Bangor Erris’s centre, 30 m.
| Month | High | Low | Rain | Air frosts | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.1°C | 4.1°C | 137 mm | 2.7 | 50 |
| February | 9.4°C | 4.1°C | 110 mm | 2.7 | 77 |
| March | 10.6°C | 4.7°C | 91 mm | 1.3 | 123 |
| April | 12.5°C | 5.9°C | 74 mm | 0.3 | 170 |
| May | 14.7°C | 8.0°C | 71 mm | 0.0 | 205 |
| June | 16.4°C | 10.3°C | 73 mm | 0.0 | 168 |
| July | 17.7°C | 12.0°C | 87 mm | 0.0 | 136 |
| August | 17.9°C | 12.1°C | 101 mm | 0.0 | 140 |
| September | 16.7°C | 10.6°C | 103 mm | 0.0 | 112 |
| October | 13.9°C | 8.4°C | 131 mm | 0.0 | 97 |
| November | 11.1°C | 6.3°C | 140 mm | 0.4 | 53 |
| December | 9.4°C | 4.6°C | 146 mm | 1.9 | 38 |
| Year | 13.3°C | 7.6°C | 1,262 mm | 9 | 1,369 |
The table is Belmullet’s own record, averaged over 1991–2020 from its daily readings (ours, not a Met Éireann table). The temperatures and rain elsewhere on this page are Met Éireann’s 1 km grid at Bangor Erris itself; the frosts, sunshine and degree days are this station’s.
How Bangor Erris 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 Mayo.
Warmer than it used to be
Bangor Erris’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 1,500 mm, up 2% from 1,464 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.
Nearby towns’ climate
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 |
|---|---|---|---|
| Bangor Erris | 18.0°C | 3.3°C | 1,500 mm |
| Béal An Mhuirthead 18 km | 17.4°C 0.6°C cooler | 4.2°C 0.9°C milder | 1,337 mm |
Bangor Erris 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 | 8.7°C | 3.3°C | 6.0°C | 155 mm |
| February | 9.1°C | 3.2°C | 6.1°C | 132 mm |
| March | 10.4°C | 4.1°C | 7.2°C | 110 mm |
| April | 12.7°C | 5.5°C | 9.1°C | 87 mm |
| May | 15.1°C | 7.6°C | 11.4°C | 88 mm |
| June | 16.9°C | 10.0°C | 13.4°C | 85 mm |
| July | 18.0°C | 11.6°C | 14.8°C | 106 mm |
| August | 18.0°C | 11.6°C | 14.8°C | 121 mm |
| September | 16.5°C | 10.2°C | 13.3°C | 123 mm |
| October | 13.5°C | 7.7°C | 10.6°C | 153 mm |
| November | 10.8°C | 5.5°C | 8.1°C | 167 mm |
| December | 9.0°C | 3.8°C | 6.4°C | 172 mm |
| Year | 13.2°C | 7.0°C | 10.1°C | 1,500 mm |
How much a month can swing
December swings the most: over 30 years its average ranged from 3.1°C (2010) to 8.5°C (2016). June is the most reliable, staying within 2.9°C.
Where Bangor Erris’s numbers come from
Averages over 30 years, not a forecast: the town’s own from Met Éireann’s grid, the frosts, sunshine and degree days from its nearest station.
- 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 Bangor Erris’s population centre (0.2 km away).
- Weather station: the nearest of Met Éireann’s 25 synoptic stations, Belmullet, 20 km north-west, from Met Éireann’s station list.
- Frosts, sunshine, degree days: Belmullet’s daily readings from Met Éireann (clidata.met.ie), 1991–2020, averaged by month: a month counts when 27 or more of its days were read (rain and sunshine: every day), and a figure needs 10 such years.
- 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: snow and wind. Met Éireann publishes neither on a grid; the frosts and sunshine here are its nearest station’s, not the town’s own.
Met Éireann 30-year averages · Met Éireann open data. Under Creative Commons Attribution 4.0 (CC BY 4.0).
Questions about Bangor Erris’s climate
How warm does Bangor Erris get in summer?
The warmest month is July, when afternoons average 18.0°C.
How cold does Bangor Erris get in winter?
February nights average 3.2°C, the coldest of the year. At Belmullet, the nearest Met Éireann station, the air drops below 0°C on about 9 nights a year (1991–2020).
How much rain does Bangor Erris get?
About 1,500 mm a year, more than almost every Irish town. December is the wettest month (172 mm) and June the driest (85 mm).
How sunny is it?
Belmullet, 20 km north-west, averages about 1,369 hours of sunshine a year (1991–2020, from its daily record). Met Éireann publishes no sunshine figure for the town itself.
Are these figures for Bangor Erris itself?
Partly. The temperatures and rain are Met Éireann’s 1991–2020 averages on its 1 km grid, read at Bangor Erris’s population centre; the frosts, degree days and year-to-year swings are those of Belmullet, 20 km north-west, the nearest of its synoptic stations.
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 Bangor Erris’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 Bangor Erris →
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).