Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December's arrival brings an average high-temperature of a chilly 8.5°C (47.3°F), demonstrating subtle variation from the preceding month. Sandymount sees a gentle drop from the daily peak temperature in December, with an average low settling at a cold 5.4°C (41.7°F).Humidity
In December, the average relative humidity is 84%.Rainfall
In Sandymount, in December, it is raining for 17 days, with typically 55mm (2.17") of accumulated precipitation. In Sandymount, during the entire year, the rain falls for 200.5 days and collects up to 530mm (20.87") of precipitation.Snowfall
Months with snowfall are January through March, November and December. December is the month with the most snowfall. Snow falls for 1.1 days and accumulates 9mm (0.35") of snow.Daylight
With an average of 7h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 8:17 am and sunset at 4:10 pm. On the last day of December, sunrise is at 8:39 am and sunset at 4:16 pm GMT.
Sunshine
In December, the average sunshine is 4.6h.UV index
The months with the lowest UV index in Sandymount 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 the average person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Sandymount?
What is the average humidity in December in Sandymount?
How much does it rain in December?
What is the snowiest month?
How much does it snow in December?
What is the month with the shortest days in Sandymount?
How many hours of daylight does Sandymount have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Sandymount have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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
Sandymount, 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).
