Photo: Adrian Taylor · CC BY-SA 2.0Nights stay kind in Glastonbury each January, milder than in 82% of UK towns
Midsummer highs settle at about 22.3°C (72°F). Summer afternoons here are warmer than in 72% of UK towns. Temperatures cover 20°C across the year, low to high. Comfortable outdoor weather lasts from June to September, with highs of 19–22°C.
Met Office 1991–2020 averages for the town itself.
A year in Glastonbury at a glance
Each month’s typical high and low, in °C.
What a year in Glastonbury feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 811 mm of rain a year
October is the wettest month and April the driest. About 21 days a year bring 10 mm (0.4 in) or more. 37th wettest of 49 Somerset towns of 2,500+.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Yeovilton
35 air frosts and 14 days of 25°C a year
On about 35 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 14 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 Yeovilton
Yeovilton is 10 miles south of Glastonbury, 20 m (66 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 | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.6°C | 2.0°C | 70 mm | 10.0 | 58 |
| February | 9.0°C | 1.8°C | 51 mm | 9.7 | 77 |
| March | 11.2°C | 3.0°C | 49 mm | 7.6 | 114 |
| April | 13.9°C | 4.5°C | 52 mm | 3.8 | 163 |
| May | 17.1°C | 7.4°C | 47 mm | 0.5 | 191 |
| June | 19.9°C | 10.3°C | 58 mm | 0.0 | 188 |
| July | 21.9°C | 12.2°C | 50 mm | 0.0 | 192 |
| August | 21.6°C | 12.2°C | 61 mm | 0.0 | 175 |
| September | 19.2°C | 10.0°C | 53 mm | 0.0 | 142 |
| October | 15.3°C | 7.6°C | 81 mm | 1.8 | 104 |
| November | 11.5°C | 4.4°C | 80 mm | 5.5 | 69 |
| December | 9.0°C | 2.3°C | 77 mm | 10.3 | 52 |
| Year | 14.9°C | 6.5°C | 728 mm | 49 | 1,524 |
Met Office historic station data, Yeovilton, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.
How Glastonbury 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 Somerset 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 |
|---|---|---|---|
| Glastonbury | 22.3°C | 2.4°C | 811 mm |
| Street 2.2 mi | 22.1°C about the same | 2.3°C about the same | 749 mm |
| Walton 2.8 mi | 22.1°C about the same | 2.4°C about the same | 748 mm |
| Wells 5.0 mi | 20.5°C 1.8°C cooler | 2.5°C about the same | 1,075 mm |
| Pilton 5.7 mi | 22.0°C about the same | 1.9°C 0.5°C colder | 927 mm |
| Keinton Mandeville 6.1 mi | 22.1°C about the same | 1.8°C 0.6°C colder | 792 mm |
| Somerton 6.7 mi | 22.3°C about the same | 1.9°C 0.5°C colder | 725 mm |
Glastonbury 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 | 8.7°C 48°F | 2.4°C 36°F | 5.5°C | 74 mm 2.9 in |
| February | 9.3°C 49°F | 2.4°C 36°F | 5.8°C | 57 mm 2.2 in |
| March | 11.6°C 53°F | 3.6°C 38°F | 7.6°C | 52 mm 2.0 in |
| April | 14.5°C 58°F | 5.1°C 41°F | 9.8°C | 51 mm 2.0 in |
| May | 17.7°C 64°F | 7.8°C 46°F | 12.7°C | 54 mm 2.1 in |
| June | 20.4°C 69°F | 10.7°C 51°F | 15.5°C | 61 mm 2.4 in |
| July | 22.3°C 72°F | 12.6°C 55°F | 17.4°C | 64 mm 2.5 in |
| August | 22.0°C 72°F | 12.6°C 55°F | 17.2°C | 74 mm 2.9 in |
| September | 19.5°C 67°F | 10.4°C 51°F | 15.0°C | 58 mm 2.3 in |
| October | 15.5°C 60°F | 7.9°C 46°F | 11.7°C | 91 mm 3.6 in |
| November | 11.7°C 53°F | 4.9°C 41°F | 8.3°C | 88 mm 3.4 in |
| December | 9.2°C 49°F | 2.8°C 37°F | 6.0°C | 88 mm 3.5 in |
| Year | 15.2°C | 6.9°C | 11.0°C | 811 mm |
Where Glastonbury’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 Glastonbury’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 Yeovilton, 10 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 Glastonbury’s climate
How warm does Glastonbury get in summer?
July is the warmest month, with average highs of 22.3°C (72°F). About 14 days a year reach 25°C (77°F), more than 68% of UK towns.
How cold does Glastonbury get in winter?
January nights average 2.4°C (36°F). The air drops below freezing on about 35 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Glastonbury get?
About 811 mm (32 in) a year, more than 56% of UK towns. October is the wettest month (91 mm) and April the driest (51 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Yeovilton (10 miles away), averages 1,524 hours of bright sunshine a year. Sunshine isn’t on the town grid, so this is the station’s figure.
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 Glastonbury. 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 Glastonbury →
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.