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 sea temperature 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
Weather in December
Temperature
Monkstown starts December with an average high-temperature of a frosty 8.5°C (47.3°F), hinting at a minimal fluctuation from November. A modest dip in temperatures to an average of 5.4°C (41.7°F) is observed throughout Monkstown's December nights.Humidity
In Monkstown, the average relative humidity in December is 84%.Rainfall
In Monkstown, Ireland, in December, it is raining for 17 days, with typically 55mm (2.17") of accumulated precipitation. Throughout the year, in Monkstown, Ireland, there are 200.5 rainfall days, and 530mm (20.87") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Monkstown. The month with the most snowfall is December, when snow falls for 1.1 days and typically aggregates up to 9mm (0.35") of snow.Sea temperature
In December, the average sea temperature is 11.3°C (52.3°F).Note: To swim in 11.3°C (52.3°F) at less than 10°C (50°F), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 13°C (55.4°F) is not welcoming.
Daylight
December has the shortest days of the year, with an average of 7h and 36min of daylight.On the first day of December in Monkstown, sunrise is at 8:17 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 8:39 am and sunset at 4:16 pm GMT.
Sunshine
In December, the average sunshine in Monkstown is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Monkstown, Ireland. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the usual temperature for Monkstown in December?
What is the average humidity in December in Monkstown?
How many days does it rain in December in Monkstown?
When does it snow the most in Monkstown?
How much does it snow in Monkstown in December?
What is the water temperature in December in Monkstown?
What is the month with the shortest days in Monkstown?
What is the average length of the day in December in Monkstown?
When are sunrise and sunset in December in Monkstown?
How long on average sun shines in December in Monkstown?
What are the months with the lowest UV index in Monkstown?
What is the UV index reading in December in Monkstown?
Average temperature in December
Monkstown, 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
Monkstown, 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
Monkstown, 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
Monkstown, 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
Monkstown, 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
Monkstown, 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
Monkstown, 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
Monkstown, 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 sea temperature in December
Monkstown, Ireland
- Average sea temperature in December: 11.3°C
The best month for swimming (with the highest average sea temperature) is August (14.9°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).
Average daylight in December /
Average sunshine in December
Monkstown, 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
Monkstown, 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
Monkstown, 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
Monkstown, 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
Monkstown, 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).
Monkstown, Ireland
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