Few UK towns have colder winter nights than Great Glen
Expect July afternoons of about 21.6°C (71°F). Wet weather is most frequent in July and least in March. By rainfall alone, it ranks drier than 71% of UK towns. Plan time outside from June to September, when highs sit at 18–22°C.
Met Office 1991–2020 averages for the town itself.
A year in Great Glen at a glance
Each month’s typical high and low, in °C.
What a year in Great Glen feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 680 mm of rain a year
July is the wettest month and March the driest. About 16 days a year bring 10 mm (0.4 in) or more. 26th wettest of 50 Leicestershire towns of 2,500+.
Rain by month
Millimetres
A frosty town: 61 air frosts and 11 days of 25°C a year
On about 61 nights a year the air drops below freezing, and on about 2 days it stays below freezing all day. About 11 days a year reach 25°C (77°F).
Day counts are 1991–2020 averages from the Met Office’s 2 km grid. The Met Office calls a day of 25°C or more a summer day and a night below 0°C an air frost; ground frosts, on grass, come more often.
The Met Office station at Sutton Bonington
Sutton Bonington is 20 miles north-west of Great Glen, 48 m (157 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.
| Month | High | Low | Rain | Air frosts |
|---|---|---|---|---|
| January | 7.5°C | 1.9°C | 51 mm | 9.3 |
| February | 8.1°C | 1.9°C | 41 mm | 8.6 |
| March | 10.6°C | 3.0°C | 41 mm | 6.0 |
| April | 13.6°C | 4.6°C | 44 mm | 2.9 |
| May | 16.7°C | 7.1°C | 47 mm | 0.9 |
| June | 19.6°C | 10.1°C | 64 mm | 0.0 |
| July | 22.0°C | 12.1°C | 62 mm | 0.0 |
| August | 21.7°C | 12.1°C | 55 mm | 0.0 |
| September | 18.7°C | 10.1°C | 49 mm | 0.0 |
| October | 14.5°C | 7.5°C | 62 mm | 1.2 |
| November | 10.4°C | 4.4°C | 57 mm | 4.4 |
| December | 7.8°C | 2.1°C | 58 mm | 9.2 |
| Year | 14.3°C | 6.4°C | 631 mm | 43 |
Met Office historic station data, Sutton Bonington, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.
How Great Glen compares
Against the 2,537 towns and cities of 2,500 or more across the UK, each with its own Met Office averages, and its place among Leicestershire towns that size.
Nearby towns’ climate
The nearest towns of 1,000+ within 12 miles: a hill, a valley or the sea can make a real difference over a few miles.
| Town | July high | January low | Rain a year |
|---|---|---|---|
| Great Glen | 21.6°C | 0.4°C | 680 mm |
| Oadby 2.3 mi | 21.8°C about the same | 0.6°C about the same | 684 mm |
| Kibworth Beauchamp and Kibworth Harcourt 3.0 mi | 21.9°C about the same | 0.5°C about the same | 676 mm |
| Fleckney 3.1 mi | 21.6°C about the same | 0.6°C about the same | 679 mm |
| Houghton on the Hill 3.6 mi | 21.2°C about the same | 0.3°C about the same | 696 mm |
| Wigston 3.6 mi | 22.3°C 0.6°C warmer | 0.7°C about the same | 663 mm |
| Countesthorpe 5.0 mi | 22.2°C 0.6°C warmer | 0.8°C about the same | 650 mm |
Great Glen weather by month
Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 6.5°C 44°F | 0.4°C 33°F | 3.5°C | 58 mm 2.3 in |
| February | 7.5°C 45°F | 0.7°C 33°F | 4.1°C | 45 mm 1.8 in |
| March | 10.2°C 50°F | 1.9°C 35°F | 6.1°C | 43 mm 1.7 in |
| April | 13.0°C 55°F | 3.4°C 38°F | 8.2°C | 47 mm 1.9 in |
| May | 16.0°C 61°F | 6.3°C 43°F | 11.1°C | 54 mm 2.1 in |
| June | 19.1°C 66°F | 8.9°C 48°F | 13.9°C | 57 mm 2.3 in |
| July | 21.6°C 71°F | 10.9°C 52°F | 16.3°C | 67 mm 2.6 in |
| August | 21.0°C 70°F | 10.9°C 52°F | 16.0°C | 63 mm 2.5 in |
| September | 18.1°C 65°F | 9.0°C 48°F | 13.7°C | 55 mm 2.2 in |
| October | 13.9°C 57°F | 6.3°C 43°F | 10.1°C | 67 mm 2.6 in |
| November | 9.8°C 50°F | 3.4°C 38°F | 6.7°C | 62 mm 2.4 in |
| December | 7.1°C 45°F | 1.0°C 34°F | 4.1°C | 61 mm 2.4 in |
| Year | 13.6°C | 5.2°C | 9.5°C | 680 mm |
Where Great Glen’s numbers come from
Averages over 30 years, not a forecast.
- Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the 1 Met Office 2 km grid square whose centre lies inside Great Glen’s built-up area.
- Highs and lows: the Met Office publishes average daily maxima and minima on its 12 km grid; each is moved by the difference between the town’s 2 km mean temperature and the 12 km square’s, which carries the town’s own height and setting over.
- Weather station and sunshine: Met Office historic station data for Sutton Bonington, 20 miles away, months of 1991–2020 averaged.
- Comparisons: every town and city of 2,500 or more across the UK, all four nations, read the same way.
Met Office HadUK-Grid · Met Office Climate Data Portal · Historic station data. Open Government Licence v3.0.
Questions about Great Glen’s climate
How warm does Great Glen get in summer?
July is the warmest month, with average highs of 21.6°C (71°F). About 11 days a year reach 25°C (77°F), more than 54% of UK towns.
How cold does Great Glen get in winter?
January nights average 0.4°C (33°F). The air drops below freezing on about 61 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Great Glen get?
About 680 mm (27 in) a year, less than 71% of UK towns. July is the wettest month (67 mm) and March the driest (43 mm).
Where do these figures come from?
The Met Office’s HadUK-Grid 1991–2020 averages, which turn thousands of weather stations into a map of the UK in 2 km squares; the page reads the squares inside Great Glen. They are 30-year averages, not a forecast.
Contains Met Office data © Crown copyright 2026, Open Government Licence v3.0. HadUK-Grid 1991–2020 averages via the Met Office Climate Data Portal; station averages from Met Office historic station data. Today’s forecast for Great Glen →
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.