Annual mean 11°C · wettest around February · prevailing wind W
Warmest
27.8 °C
Coldest
1.1 °C
Wettest
40%
Windiest
4.9 m/s
Prevailing
W
3.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Glastonbury over the whole year is 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -3°C. The rainy (wet) season in Glastonbury runs from January to February, peaking in February with a 37% chance of rain on a given day. The dry season is March to December; June is the driest month, at 7%. Winds in Glastonbury are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.3 m/s (8 km/h). The prevailing wind is from the W. The clearest skies in Glastonbury come in November, when the sky is typically 41% covered; May is the cloudiest month, at 54%.
Month by month Glastonbury climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
2°C
-3°C
-4°C
33%
52%
3.3 m/s
0
0
5
February
3°C
-2°C
-2°C
37%
49%
3.3 m/s
1
0
11
March
7°C
1°C
2°C
18%
49%
3.7 m/s
3
0
26
April
13°C
6°C
8°C
13%
54%
3.5 m/s
17
1
53
May
19°C
12°C
16°C
11%
54%
3.0 m/s
53
10
72
June
24°C
17°C
23°C
7%
46%
2.7 m/s
71
35
48
July
27°C
21°C
28°C
9%
44%
2.4 m/s
43
62
15
August
27°C
19°C
27°C
8%
43%
2.3 m/s
55
54
24
September
22°C
15°C
22°C
10%
46%
2.4 m/s
72
26
57
October
17°C
10°C
14°C
12%
49%
2.6 m/s
46
5
73
November
10°C
3°C
5°C
10%
41%
3.0 m/s
11
0
37
December
4°C
-0°C
-1°C
14%
50%
2.9 m/s
0
0
12
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Glastonbury weather by season
Year round, Glastonbury has days of about 2°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -3°C to 21°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around February and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Glastonbury weather in winterDecember to February
High 3°CLow -2°CRain 28%
Winter in Glastonbury has typical daily highs of about 3°C and lows of about -2°C, with a 28% chance of rain on a given day.
Glastonbury weather in springMarch to May
High 13°CLow 6°CRain 14%
Spring in Glastonbury has typical daily highs of about 13°C and lows of about 6°C, with a 14% chance of rain on a given day.
Glastonbury weather in summerJune to August
High 26°CLow 19°CRain 8%
Summer in Glastonbury has typical daily highs of about 26°C and lows of about 19°C, with a 8% chance of rain on a given day.
Glastonbury weather in autumnSeptember to November
High 16°CLow 9°CRain 10%
Autumn in Glastonbury has typical daily highs of about 16°C and lows of about 9°C, with a 10% chance of rain on a given day.
When is the rainy season in Glastonbury?
The rainy (wet) season in Glastonbury runs from January to February, peaking in February with a 37% chance of rain on a given day. The dry season is March to December; June is the driest month, at 7%.
What time of year is Glastonbury windiest?
Winds in Glastonbury are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.3 m/s (8 km/h). The prevailing wind is from the W.
What is the average temperature in Glastonbury year round?
The average temperature in Glastonbury over the whole year is 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -3°C.