December weather forecast
Rathmines, Ireland

December

Weather in December

December, the first month of the winter in Rathmines, is still a chilly month, with an average temperature fluctuating between 8.5°C (47.3°F) and 5.4°C (41.7°F).

Temperature

December's average high-temperature stands at a frosty 8.5°C (47.3°F), showing little deviation from November's 10.1°C (50.2°F). The temperature during December nights demonstrates a small drop from the daytime highs, settling to an average of 5.4°C (41.7°F).

Humidity

In December, the average relative humidity in Rathmines is 84%.

Rainfall

In December, in Rathmines, the rain falls for 17 days. Throughout December, 55mm (2.17") of precipitation is accumulated. In Rathmines, during the entire year, the rain falls for 200.5 days and collects up to 530mm (20.87") of precipitation.

Snowfall

January through March, November and December are months with snowfall. December is the month with the most snowfall in Rathmines. Snow falls for 1.1 days and accumulates 9mm (0.35") of snow.

Daylight

December has the shortest days of the year in Rathmines, with an average of 7h and 36min of daylight.
On the first day of December, sunrise is at 8:17 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 Rathmines, Ireland, the average sunshine in December is 4.6h.

UV index

The months with the lowest UV index in Rathmines are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What are December temperatures in Rathmines?
December temperatures vary between a high-temperature of 8.5°C (47.3°F) and a low-temperature of 5.4°C (41.7°F).
What is the average humidity in December in Rathmines?
In December, the average relative humidity is 84%.
How many days does it rain in December in Rathmines?
In Rathmines, in December, it is raining for 17 days, with typically 55mm (2.17") of accumulated precipitation.
What is the snowiest month in Rathmines?
December is the month with the most snowfall. Snow falls for 1.1 days and accumulates 9mm (0.35") of snow.
How many days does it snow in December in Rathmines?
In Rathmines, in December, during 1.1 snowfall days, 9mm (0.35") of snow is typically accumulated.
What is the month with the shortest days in Rathmines?
December has the shortest days of the year in Rathmines, with an average of 7h and 36min of daylight.
What is the average length of the day in December in Rathmines?
In Rathmines, the average day length in December is 7h and 37min.
When are sunrise and sunset in December in Rathmines?
In December, on the first day of the month, sunrise is at 8:17 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 many hours of sunshine does Rathmines have in December?
In December, the average sunshine duration in Rathmines is 4.6h.
When is the lowest UV index in Rathmines?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the UV index reading in December in Rathmines?
The average daily maximum UV index in December in Rathmines is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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 - Rathmines, Ireland
Average temperature in December
Rathmines, Ireland
  • Average high temperature in December: 8.5°C

The warmest months (with the highest average high temperature) are July and August (16.9°C).
The months with the lowest average high temperature are January and February (7.8°C).

  • Average low temperature in December: 5.4°C

The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (4.4°C).

Average pressure in December - Rathmines, Ireland
Average pressure in December
Rathmines, Ireland
  • Average pressure in December: 1011.1mbar

The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).

Average wind speed in December - Rathmines, Ireland
Average wind speed in December
Rathmines, Ireland
  • Average wind speed in December: 25.9km/h

The windiest month (with the highest average wind speed) is December (25.9km/h).
The calmest month (with the lowest average wind speed) is July (15.9km/h).

Average humidity in December - Rathmines, Ireland
Average humidity in December
Rathmines, Ireland
  • Average humidity in December: 84%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (82%).

Average rainfall in December - Rathmines, Ireland
Average rainfall in December
Rathmines, Ireland
  • Average rainfall in December: 55mm

The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is May (27mm).

Average rainfall days in December - Rathmines, Ireland
Average rainfall days in December
Rathmines, Ireland
  • Average rainfall days in December: 17 days

The month with the highest number of rainy days is July (20.4 days).
The months with the least rainy days are March and September (14.9 days).

Average snowfall in December - Rathmines, Ireland
Average snowfall in December
Rathmines, Ireland
  • Average snowfall in December: 9mm

The month with the highest snowfall is December (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December - Rathmines, Ireland
Average snowfall days in December
Rathmines, Ireland
  • Average snowfall days in December: 1.1 days

The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Rathmines, Ireland
Average daylight in December /
Average sunshine in December
Rathmines, 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 month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 4h and 18min).

Average sunshine days in December - Rathmines, Ireland
Average sunshine days in December
Rathmines, Ireland
  • Average sunshine days in December: 10.2 days

The month with the most sunshine days is April (11.7 days).
The month with the least sunshine days is July (7.2 days).

Average UV index in December - Rathmines, Ireland
Average UV index in December
Rathmines, 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 - Rathmines, Ireland
Average cloud cover in December
Rathmines, Ireland
  • Average cloud cover in December: 53

The months with the most cloud cover are February and November (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 48).

Average visibility in December - Rathmines, Ireland
Average visibility in December
Rathmines, Ireland
  • Average visibility in December: 9km

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

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