December weather forecast
Ireland, IN

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Weather in December

December, the first month of the winter in Ireland, is also a frosty month, with an average temperature varying between 31.5°F (-0.3°C) and 43.3°F (6.3°C).

Temperature

Ireland's weather changes with the onset of December, slightly falling from a fresh 52.9°F (11.6°C) in November to a frosty 43.3°F (6.3°C). During the month of December, the nighttime temperature in Ireland falls to an average of 31.5°F (-0.3°C).

Humidity

In Ireland, the average relative humidity in December is 80%.

Rainfall

In December, in Ireland, the rain falls for 10.8 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. In Ireland, during the entire year, the rain falls for 166.2 days and collects up to 39.17" (995mm) of precipitation.

Snowfall

Months with snowfall are January through April, September through December. In Ireland, in December, snow falls for 5.2 days, with typically accumulated 1.42" (36mm) of snow. In Ireland, during the entire year, snow falls for 25.4 days and aggregates up to 7.8" (198mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year in Ireland.
On the first day of the month, sunrise is at 7:46 am and sunset at 5:27 pm. On the last day of December, sunrise is at 8:05 am and sunset at 5:37 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 4.4h of sunshine.

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 estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Ireland in December?

In Ireland, 43.3°F (6.3°C) is the average high-temperature and 31.5°F (-0.3°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 95°F (35°C).

What is the average humidity in December in Ireland?

In Ireland, Indiana, the average relative humidity in December is 80%.

How much does it rain in Ireland in December?

In December, in Ireland, Indiana, the rain falls for 10.8 days. Throughout December, 3.11" (79mm) of precipitation is accumulated.

How many days does it snow in December in Ireland?

In Ireland, in December, during 5.2 snowfall days, 1.42" (36mm) of snow is typically accumulated.

What is the month with the shortest days in Ireland?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

What is the average length of the day in December in Ireland?

In December, the average day length in Ireland, Indiana, is 9h and 32min.

When are sunrise and sunset in December in Ireland?

On the first day of December in Ireland, Indiana, sunrise is at 7:46 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:37 pm EST.

What is the month with the least sunshine in Ireland?

December has the least sunshine of the year, with an average of 4.4h of sunshine.

How many hours of sunshine does Ireland have in December?

In December, the average sunshine duration in Ireland, Indiana, is 4.4h.

When is the lowest UV index in Ireland?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December in Ireland?

In Ireland, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ireland, IN

Average temperature in December - Ireland, IN
  • Average high temperature in December: 43.3°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 31.5°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure in December
Ireland, IN

Average pressure in December - Ireland, IN
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Ireland, IN

Average wind speed in December - Ireland, IN
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in December
Ireland, IN

Average humidity in December - Ireland, IN
  • Average humidity in December: 80%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Ireland, IN

Average rainfall in December - Ireland, IN
  • Average rainfall in December: 3.11"

The wettest month (with the highest rainfall) is April (4.84").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in December
Ireland, IN

Average rainfall days in December - Ireland, IN
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (10.3 days).

Average snowfall in December
Ireland, IN

Average snowfall in December - Ireland, IN
  • Average snowfall in December: 1.42"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in December
Ireland, IN

Average snowfall days in December - Ireland, IN
  • Average snowfall days in December: 5.2 days

The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Ireland, IN

Average daylight in December / Average sunshine in December - Ireland, IN
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 4h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

Average sunshine days in December
Ireland, IN

Average sunshine days in December - Ireland, IN
  • Average sunshine days in December: 14.7 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is May (9.4 days).

Average UV index in December
Ireland, IN

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Ireland, IN

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

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Ireland, IN

Average visibility in December - Ireland, IN
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, May, July and August (5mi).

Ireland, Indiana, USA

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