December weather forecastRuan, Ireland
December
Weather in December
The first month of the winter, December, is still a chilly month in Ruan, Ireland, with an average temperature fluctuating between 8°C (46.4°F) and 4°C (39.2°F).Temperature
Transitioning into December, Ruan experiences an average high-temperature of a still chilly 8°C (46.4°F), marking a minor shift from the preceding month. Ruan reports an average low-temperature of 4°C (39.2°F) during the subtly cooler December nights.Humidity
The months with the highest humidity in Ruan are November and December, with an average relative humidity of 89%.Rainfall
In December, in Ruan, Ireland, the rain falls for 14.4 days. Throughout December, 33mm (1.3") of precipitation is accumulated. In Ruan, Ireland, during the entire year, the rain falls for 184.7 days and collects up to 356mm (14.02") of precipitation.Snowfall
January through March and December are months with snowfall in Ruan. December is the first month it typically snows in Ruan. Throughout December, in the average 0.4 snowfall days, it receives 8mm (0.31") of snow. Throughout the year, there are 3 snowfall days, and 29mm (1.14") of snow is accumulated.Daylight
With an average of 7h and 42min of daylight, December has the shortest days of the year.On the first day of December in Ruan, sunrise is at 8:26 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 8:48 am and sunset at 4:29 pm GMT.
Sunshine
In Ruan, Ireland, the average sunshine in December is 3.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ruan. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ruan, Ireland
- Average high temperature in December: 8°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (7.8°C).
- Average low temperature in December: 4°C
The month with the highest average low temperature is August (11.2°C).
The coldest month (with the lowest average low temperature) is February (2.9°C).
Average pressure in December
Ruan, Ireland
- Average pressure in December: 1010.8mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1008.1mbar).
Average wind speed in December
Ruan, Ireland
- Average wind speed in December: 20.1km/h
The windiest month (with the highest average wind speed) is January (20.2km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).
Average humidity in December
Ruan, Ireland
- Average humidity in December: 89%
The months with the highest relative humidity are November and December (89%).
The month with the lowest relative humidity is April (84%).
Average rainfall in December
Ruan, Ireland
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is August (39mm).
The driest month (with the least rainfall) is September (20mm).
Average rainfall days in December
Ruan, Ireland
- Average rainfall days in December: 14.4 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in December
Ruan, Ireland
- Average snowfall in December: 8mm
The month with the highest snowfall is January (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Ruan, Ireland
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Ruan, Ireland
- Average daylight in December: 7h and 42min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is June (Average sunshine: 7h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Ruan, Ireland
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is December (13.9 days).
The month with the least sunshine days is August (5.9 days).
Average UV index in December
Ruan, Ireland
- Average UV index in December: 2
The months with the highest UV index are May and June (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Ruan, Ireland
- Average cloud cover in December: 62
The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility in December
Ruan, Ireland
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (9km).
The months with the lowest visibility are July, August and September (8km).
