Glastonbury weather
The Glastonbury weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Glastonbury, Somerset, England in 2026/2027.
Glastonbury weather averages
Check the Glastonbury weather averages for each month of the year including maximum daytime and minimum night-time temperatures, monthly rainfall, number of days with rain and average daily hours of sunshine for Glastonbury, Somerset, England.
Glastonbury weather by month
Check the weather for Glastonbury, Somerset, England for a particular month by selecting from the list below. This gives the best indication of what to expect from the weather months in advance.
Glastonbury weather in January
The average maximum daytime temperature in Glastonbury in January is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 2 hours of sunshine a day in Glastonbury during January.
- 7°C max day temperature
7 - 2 hours of sunshine per day
2 - 18 days with some rainfall
18 - 2°C min night temperature
2 - 95 mm of monthly rainfall
95
On average 95 mm (3.7 inches) of rain normally falls in Glastonbury during January with rain falling on 18 days of the month.
Glastonbury weather in February
The average maximum daytime temperature in Glastonbury in February is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 3 hours of sunshine a day in Glastonbury during February.
- 8°C max day temperature
8 - 3 hours of sunshine per day
3 - 14 days with some rainfall
14 - 2°C min night temperature2
- 73 mm of monthly rainfall
73
On average 73 mm (2.9 inches) of rain normally falls in Glastonbury during February with rain falling on 14 days of the month.
Glastonbury weather in March
The average maximum daytime temperature in Glastonbury in March is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 4 hours of sunshine a day in Glastonbury during March.
- 10°C max day temperature10
- 4 hours of sunshine per day
4 - 17 days with some rainfall17
- 3°C min night temperature3
- 74 mm of monthly rainfall74
On average 74 mm (2.9 inches) of rain normally falls in Glastonbury during March with rain falling on 17 days of the month.
Glastonbury weather in April
The average maximum daytime temperature in Glastonbury in April is a cool 12°C (54°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 5 hours of sunshine a day in Glastonbury during April.
- 12°C max day temperature
12 - 5 hours of sunshine per day
5 - 14 days with some rainfall14
- 4°C min night temperature4
- 61 mm of monthly rainfall61
On average 61 mm (2.4 inches) of rain normally falls in Glastonbury during April with rain falling on 14 days of the month.
Glastonbury weather in May
The average maximum daytime temperature in Glastonbury in May is a comfortable 16°C (61°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 6 hours of sunshine a day in Glastonbury during May.
- 16°C max day temperature
16 - 6 hours of sunshine per day
6 - 13 days with some rainfall13
- 7°C min night temperature7
- 63 mm of monthly rainfall63
On average 63 mm (2.5 inches) of rain normally falls in Glastonbury during May with rain falling on 13 days of the month.
Glastonbury weather in June
The average maximum daytime temperature in Glastonbury in June is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 7 hours of sunshine a day in Glastonbury during June.
- 18°C max day temperature
18 - 7 hours of sunshine per day
7 - 12 days with some rainfall
12 - 10°C min night temperature10
- 64 mm of monthly rainfall64
On average 64 mm (2.5 inches) of rain normally falls in Glastonbury during June with rain falling on 12 days of the month.
Glastonbury weather in July
The average maximum daytime temperature in Glastonbury in July is a comfortable 21°C (70°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 6 hours of sunshine a day in Glastonbury during July.
- 21°C max day temperature21
- 6 hours of sunshine per day6
- 11 days with some rainfall11
- 12°C min night temperature12
- 60 mm of monthly rainfall
60
On average 60 mm (2.4 inches) of rain normally falls in Glastonbury during July with rain falling on 11 days of the month.
Glastonbury weather in August
The average maximum daytime temperature in Glastonbury in August is a comfortable 21°C (70°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 6 hours of sunshine a day in Glastonbury during August.
- 21°C max day temperature21
- 6 hours of sunshine per day6
- 13 days with some rainfall13
- 12°C min night temperature12
- 79 mm of monthly rainfall79
On average 79 mm (3.1 inches) of rain normally falls in Glastonbury during August with rain falling on 13 days of the month.
Glastonbury weather in September
The average maximum daytime temperature in Glastonbury in September is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 5 hours of sunshine a day in Glastonbury during September.
- 18°C max day temperature18
- 5 hours of sunshine per day5
- 14 days with some rainfall14
- 10°C min night temperature10
- 86 mm of monthly rainfall86
On average 86 mm (3.4 inches) of rain normally falls in Glastonbury during September with rain falling on 14 days of the month.
Glastonbury weather in October
The average maximum daytime temperature in Glastonbury in October is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 3 hours of sunshine a day in Glastonbury during October.
- 14°C max day temperature14
- 3 hours of sunshine per day3
- 16 days with some rainfall16
- 7°C min night temperature7
- 92 mm of monthly rainfall92
On average 92 mm (3.6 inches) of rain normally falls in Glastonbury during October with rain falling on 16 days of the month.
Glastonbury weather in November
The average maximum daytime temperature in Glastonbury in November is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 2 hours of sunshine a day in Glastonbury during November.
- 10°C max day temperature10
- 2 hours of sunshine per day2
- 17 days with some rainfall17
- 4°C min night temperature4
- 96 mm of monthly rainfall96
On average 96 mm (3.8 inches) of rain normally falls in Glastonbury during November with rain falling on 17 days of the month.
Glastonbury weather in December
The average maximum daytime temperature in Glastonbury in December is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 2 hours of sunshine a day in Glastonbury during December.
- 8°C max day temperature8
- 2 hours of sunshine per day2
- 18 days with some rainfall18
- 3°C min night temperature3
- 104 mm of monthly rainfall
104
On average 104 mm (4.1 inches) of rain normally falls in Glastonbury during December with rain falling on 18 days of the month.