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
As Portnablagh transitions into December, the average high-temperature stands at a still frosty 7.4°C (45.3°F), offering little variation from the preceding month. A consistent average low of 4°C (39.2°F) is noted in Portnablagh, Ireland throughout December, only a small step down from its daytime high.Humidity
In Portnablagh, Ireland, the average relative humidity in December is 86%.Rainfall
In December, the rain falls for 18.3 days. Throughout December, 44mm (1.73") of precipitation is accumulated. Throughout the year, there are 225.7 rainfall days, and 615mm (24.21") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Portnablagh, during December, snow falls for 0.6 days and regularly aggregates up to 3mm (0.12") of snow. Throughout the year, there are 6.8 snowfall days, and 59mm (2.32") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 18min of daylight.On the first day of December, sunrise is at 8:34 am and sunset at 4:07 pm. On the last day of the month, sunrise is at 8:57 am and sunset at 4:12 pm GMT.
Sunshine
In Portnablagh, the average sunshine in December is 3.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Portnablagh?
What is the average humidity in December in Portnablagh?
How many days does it rain in December in Portnablagh?
How much does it snow in Portnablagh in December?
What is the month with the shortest days in Portnablagh?
What is the average length of the day in December in Portnablagh?
What time are sunrise and sunset in December in Portnablagh?
How long on average sun shines in December in Portnablagh?
What is the month with the lowest UV index in Portnablagh?
What is the UV index intensity in December in Portnablagh?
Average temperature in December
Portnablagh, Ireland
- Average high temperature in December: 7.4°C
The warmest month (with the highest average high temperature) is July (16.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in December: 4°C
The month with the highest average low temperature is July (11.2°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in December
Portnablagh, Ireland
- Average pressure in December: 1008mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is November (1006.5mbar).
Average wind speed in December
Portnablagh, Ireland
- Average wind speed in December: 22.8km/h
The windiest month (with the highest average wind speed) is January (23.6km/h).
The calmest month (with the lowest average wind speed) is July (14.7km/h).
Average humidity in December
Portnablagh, Ireland
- Average humidity in December: 86%
The months with the highest relative humidity are July and August (87%).
The months with the lowest relative humidity are March and April (82%).
Average rainfall in December
Portnablagh, Ireland
- Average rainfall in December: 44mm
The wettest month (with the highest rainfall) is August (83mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in December
Portnablagh, Ireland
- Average rainfall days in December: 18.3 days
The month with the highest number of rainy days is August (25.4 days).
The month with the least rainy days is February (13.4 days).
Average snowfall in December
Portnablagh, Ireland
- Average snowfall in December: 3mm
The month with the highest snowfall is February (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Portnablagh, Ireland
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.5 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
Portnablagh, Ireland
- Average daylight in December: 7h and 2min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is June (Average sunshine: 7h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Portnablagh, Ireland
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is April (12.5 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in December
Portnablagh, Ireland
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Portnablagh, Ireland
- Average cloud cover in December: 64
The months with the most cloud cover are January and July (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility in December
Portnablagh, Ireland
- Average visibility in December: 9km
The month with the highest visibility is February (10km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (9km).
