December weather forecastSaint Marnocks, Ireland
December
Weather in December
The first month of the winter, December, is also a frosty month in Saint Marnocks, Ireland, with temperature in the range of an average high of 8.3°C (46.9°F) and an average low of 4.6°C (40.3°F).Temperature
The arrival of December is marked by an average high-temperature of a still chilly 8.3°C (46.9°F), bearing a close resemblance to November. Saint Marnocks's nocturnal readings in December exhibit minimal variation from the daytime temperatures, averaging at a cold 4.6°C (40.3°F).Humidity
July and December, with an average relative humidity of 86%, are the most humid months.Rainfall
In Saint Marnocks, in December, it is raining for 11.8 days, with typically 35mm (1.38") of accumulated precipitation. In Saint Marnocks, during the entire year, the rain falls for 159.4 days and collects up to 362mm (14.25") of precipitation.Snowfall
Months with snowfall in Saint Marnocks 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 in Saint Marnocks is December, with an average of 7h and 36min of daylight.On the first day of the month, sunrise is at 8:17 am and sunset at 4:09 pm. On the last day of December, in Saint Marnocks, sunrise is at 8:40 am and sunset at 4:15 pm GMT.
Sunshine
In December, the average sunshine is 4.6h.UV index
The months with the lowest UV index in Saint Marnocks, Ireland, are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 2 in December transforms into this advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saint Marnocks, 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
Saint Marnocks, 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
Saint Marnocks, 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
Saint Marnocks, 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
Saint Marnocks, 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
Saint Marnocks, 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
Saint Marnocks, 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
Saint Marnocks, 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
Saint Marnocks, Ireland
- Average daylight in December: 7h and 36min
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 36min
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
Saint Marnocks, 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
Saint Marnocks, 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
Saint Marnocks, 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
Saint Marnocks, 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).





