December weather forecast
Glasnevin, Ireland

December

Weather in December

The first month of the winter, December, is also a frosty month in Glasnevin, Ireland, with temperature in the range of an average low of 4.6°C (40.3°F) and an average high of 8.3°C (46.9°F).

Temperature

Glasnevin records a slight change with December's average high-temperatures adjusting to a still chilly 8.3°C (46.9°F) from November's 9.9°C (49.8°F). The temperature in Glasnevin during December nights demonstrates a small drop from the daytime highs, settling to an average of 4.6°C (40.3°F).

Humidity

July and December, with an average relative humidity of 86%, are the most humid months.

Rainfall

In Glasnevin, in December, during 11.8 rainfall days, 35mm (1.38") of precipitation is typically accumulated. In Glasnevin, during the entire year, the rain falls for 159.4 days and collects up to 362mm (14.25") of precipitation.

Snowfall

Months with snowfall are January through March, November and December. December is the month with the most snowfall. Snow falls for 0.9 days and accumulates 12mm (0.47") of snow.

Daylight

The month with the shortest days is December, with an average of 7h and 36min of daylight.
On the first day of December, sunrise is at 8:18 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 8:40 am and sunset at 4:16 pm GMT.

Sunshine

In Glasnevin, the average sunshine in December is 4.6h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

What is the average December temperature?
The high-temperature during December is 8.3°C (46.9°F) and the low-temperature is 4.6°C (40.3°F).
What are the most humid months?
July and December, with an average relative humidity of 86%, are most humid months.
What is the average humidity in December?
The average relative humidity in December is 86%.
How much does it rain in December?
In Glasnevin, in December, it is raining for 11.8 days, with typically 35mm (1.38") of accumulated precipitation.
When does it snow the most?
December is the month with the most snowfall. Snow falls for 0.9 days and accumulates 12mm (0.47") of snow.
How much does it snow in December?
In Glasnevin, in December, during 0.9 snowfall days, 12mm (0.47") of snow is typically accumulated.
What is the month with the shortest days?
With an average of 7h and 36min of daylight, December has the shortest days of the year.
What is the average length of the day in December?
The average day length in December in Glasnevin is 7h and 36min.
When are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 8:18 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 8:40 am and sunset at 4:16 pm GMT.
How long on average sun shines in December?
In December, the average sunshine duration is 4.6h.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the UV index intensity in December?
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Glasnevin, Ireland
Average temperature in December
Glasnevin, Ireland
  • Average high temperature in December: 8.3°C

The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (7.6°C).

  • Average low temperature in December: 4.6°C

The months with the highest average low temperature are July and August (12.1°C).
The coldest months (with the lowest average low temperature) are February and March (3.9°C).

Average pressure in December - Glasnevin, Ireland
Average pressure in December
Glasnevin, Ireland
  • Average pressure in December: 1010.9mbar

The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.2mbar).

Average wind speed in December - Glasnevin, Ireland
Average wind speed in December
Glasnevin, Ireland
  • Average wind speed in December: 24.1km/h

The windiest month (with the highest average wind speed) is January (24.2km/h).
The calmest month (with the lowest average wind speed) is June (15.2km/h).

Average humidity in December - Glasnevin, Ireland
Average humidity in December
Glasnevin, Ireland
  • Average humidity in December: 86%

The months with the highest relative humidity are July and December (86%).
The months with the lowest relative humidity are March, April and May (83%).

Average rainfall in December - Glasnevin, Ireland
Average rainfall in December
Glasnevin, Ireland
  • Average rainfall in December: 35mm

The wettest month (with the highest rainfall) is November (51mm).
The driest month (with the least rainfall) is May (19mm).

Average rainfall days in December - Glasnevin, Ireland
Average rainfall days in December
Glasnevin, Ireland
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (10.7 days).

Average snowfall in December - Glasnevin, Ireland
Average snowfall in December
Glasnevin, Ireland
  • Average snowfall in December: 12mm

The month with the highest snowfall is December (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December - Glasnevin, Ireland
Average snowfall days in December
Glasnevin, Ireland
  • Average snowfall days in December: 0.9 days

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Glasnevin, Ireland
Average daylight in December /
Average sunshine in December
Glasnevin, Ireland
  • Average daylight in December: 7h and 4min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in December: 4h and 4min

The months with the most sunshine are April, May and June (Average sunshine: 7h and 30min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 18min).

Average sunshine days in December - Glasnevin, Ireland
Average sunshine days in December
Glasnevin, Ireland
  • Average sunshine days in December: 16.8 days

The months with the most sunshine days are January and December (16.8 days).
The month with the least sunshine days is July (11 days).

Average UV index in December - Glasnevin, Ireland
Average UV index in December
Glasnevin, Ireland
  • Average UV index in December: 2

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

Average cloud cover in December - Glasnevin, Ireland
Average cloud cover in December
Glasnevin, Ireland
  • Average cloud cover in December: 53

The months with the most cloud cover are January and February (Cloud cover 57).
The months with the least cloud cover are April and September (Cloud cover 50).

Average visibility in December - Glasnevin, Ireland
Average visibility in December
Glasnevin, Ireland
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, October, November and December (10km).
The months with the lowest visibility are April, May, June, July, August and September (9km).

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