May weather forecast and climate
Glastonbury, United Kingdom

Weather in May

The last month of the spring, May, is a mild month in Glastonbury, United Kingdom, with temperature in the range of an average high of 15.3°C (59.5°F) and an average low of 7.2°C (45°F).

Temperature

In Glastonbury, the average high-temperature in May is practically the same as in April - a moderate 15.3°C (59.5°F). In Glastonbury, United Kingdom, in May, the average low-temperature is 7.2°C (45°F).

Humidity

The average relative humidity in May is 83%.

Rainfall

In Glastonbury, in May, it is raining for 14.4 days, with typically 32mm (1.26") of accumulated precipitation. Throughout the year, in Glastonbury, there are 176.7 rainfall days, and 514mm (20.24") of precipitation is accumulated.

Snowfall

In Glastonbury, United Kingdom, snow does not fall in April through October.

Daylight

The average length of the day is 15.6h.

Sunshine

In May, the average sunshine in Glastonbury is 7.8h.

UV index

May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in May in Glastonbury?

The average high-temperature, in May, in Glastonbury, United Kingdom, is 15.3°C (59.5°F), while the average low-temperature is 7.2°C (45°F).

What is the average humidity in May in Glastonbury?

The average relative humidity in May in Glastonbury, United Kingdom, is 83%.

How much does it rain in Glastonbury in May?

In Glastonbury, United Kingdom, during May, the rain falls for 14.4 days and regularly aggregates up to 32mm (1.26") of precipitation.

When it does not snow in Glastonbury?

April through October are months without snowfall.

What is the average length of the day in May in Glastonbury?

In Glastonbury, the average length of the day in May is 15.6h.

How many hours of sunshine does Glastonbury have in May?

The average sunshine in May in Glastonbury is 7.8h.

What is the month with the highest UV index in Glastonbury?

May through September, with an average maximum UV index of 4, are months with the highest UV index in Glastonbury.

What is the UV index reading in May in Glastonbury?

In May, the average daily maximum UV index in Glastonbury is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in May
Glastonbury, United Kingdom

Average temperature in May - Glastonbury, United Kingdom
  • Average high temperature in May: 15.3°C

The warmest month (with the highest average high temperature) is July (19.9°C).
The month with the lowest average high temperature is January (7.2°C).

  • Average low temperature in May: 7.2°C

The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is February (2.5°C).

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Average pressure in May
Glastonbury, United Kingdom

Average pressure in May - Glastonbury, United Kingdom
  • Average pressure in May: 1016.8mbar

The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.2mbar).

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Average wind speed in May
Glastonbury, United Kingdom

Average wind speed in May - Glastonbury, United Kingdom
  • Average wind speed in May: 13.5km/h

The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).

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Average humidity in May
Glastonbury, United Kingdom

Average humidity in May - Glastonbury, United Kingdom
  • Average humidity in May: 83%

Months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (82%).

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Average rainfall in May
Glastonbury, United Kingdom

Average rainfall in May - Glastonbury, United Kingdom
  • Average rainfall in May: 32mm

The wettest month (with the highest rainfall) is December (67mm).
The driest months (with the least rainfall) are April and September (30mm).

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Average rainfall days in May
Glastonbury, United Kingdom

Average rainfall days in May - Glastonbury, United Kingdom
  • Average rainfall days in May: 14.4 days

The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is February (12.4 days).

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Average snowfall in May
Glastonbury, United Kingdom

Average snowfall in May - Glastonbury, United Kingdom
  • Average snowfall in May: 0mm

The month with the highest snowfall is January (25mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in May
Glastonbury, United Kingdom

Average snowfall days in May - Glastonbury, United Kingdom
  • Average snowfall days in May: 0 days

Months with the highest number of snowfall days are January and February (2.7 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Glastonbury, United Kingdom

Average daylight in May / Average sunshine in May - Glastonbury, United Kingdom
  • Average daylight in May: 15.6h

The month with the longest days is June (Average daylight: 16.5h).
The month with the shortest days is December (Average daylight: 8h).

  • Average sunshine in May: 7.8h

The month with the most sunshine is July (Average sunshine: 8h).
The month with the least sunshine is November (Average sunshine: 3.8h).

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Average sunshine days in May
Glastonbury, United Kingdom

Average sunshine days in May - Glastonbury, United Kingdom
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is November (10.4 days).

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Average UV index in May
Glastonbury, United Kingdom

Average UV index in May - Glastonbury, United Kingdom
  • Average UV index in May: 4

Months with the highest UV index are May, June, July, August and September (UV index 4).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Glastonbury, United Kingdom

Average cloud cover in May - Glastonbury, United Kingdom
  • Average cloud cover in May: 50

The month with the most cloud cover is November (Cloud cover 62).
The month with the least cloud cover is May (Cloud cover 50).

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Average visibility in May
Glastonbury, United Kingdom

Average visibility in May - Glastonbury, United Kingdom
  • Average visibility in May: 9km

Months with the highest visibility are January, February, March, April, May, June and December (9km).
Months with the lowest visibility are July, August, September, October and November (8km).

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