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
Machynlleth's shift from November to December is accompanied by an average high-temperature of a still chilly 6.6°C (43.9°F), a slight deviation from 8.5°C (47.3°F). Machynlleth in December observes a slight diminution in temperature from daily highs, recording a low-temperature average of 3°C (37.4°F).Humidity
The months with the highest humidity in Machynlleth are January, October through December, with an average relative humidity of 90%.Rainfall
The month with the most rainfall is December, when the rain falls for 19.8 days and typically aggregates up to 90mm (3.54") of precipitation.Snowfall
Months with snowfall are January through May, November and December. In December, it is snowing for 3.4 days. Throughout December, 34mm (1.34") of snow is accumulated. In Machynlleth, during the entire year, snow falls for 17.5 days and aggregates up to 199mm (7.83") of snow.Daylight
December has the shortest days of the year in Machynlleth, with an average of 7h and 42min of daylight.On the first day of December in Machynlleth, sunrise is at 8:04 am and sunset at 4:04 pm. On the last day of the month, sunrise is at 8:26 am and sunset at 4:10 pm GMT.
Sunshine
The average sunshine in December is 3.3h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes 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:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Experience reduced UV exposure by about half when donning a wide-brim hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Machynlleth in December?
What is the most humid month in Machynlleth?
What is the average humidity in December in Machynlleth?
What is the wettest month in Machynlleth?
How much does it rain in Machynlleth in December?
How many days does it snow in December in Machynlleth?
What is the month with the shortest days in Machynlleth?
How many hours of daylight does Machynlleth have in December?
What time are sunrise and sunset in December in Machynlleth?
How long on average sun shines in December in Machynlleth?
What are the months with the lowest UV index in Machynlleth?
What is the UV index intensity in December in Machynlleth?
Average temperature in December
Machynlleth, United Kingdom
- Average high temperature in December: 6.6°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 (5.7°C).
- Average low temperature in December: 3°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).
Average pressure in December
Machynlleth, United Kingdom
- Average pressure in December: 1012.7mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in December
Machynlleth, United Kingdom
- Average wind speed in December: 19.3km/h
The windiest month (with the highest average wind speed) is December (19.3km/h).
The calmest month (with the lowest average wind speed) is June (12.3km/h).
Average humidity in December
Machynlleth, United Kingdom
- Average humidity in December: 90%
The months with the highest relative humidity are January, October, November and December (90%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in December
Machynlleth, United Kingdom
- Average rainfall in December: 90mm
The wettest month (with the highest rainfall) is December (90mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in December
Machynlleth, United Kingdom
- Average rainfall days in December: 19.8 days
The month with the highest number of rainy days is August (20 days).
The month with the least rainy days is February (14.3 days).
Average snowfall in December
Machynlleth, United Kingdom
- Average snowfall in December: 34mm
The month with the highest snowfall is February (61mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Machynlleth, United Kingdom
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Machynlleth, United Kingdom
- Average daylight in December: 7h and 4min
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 2min
The month with the most sunshine is May (Average sunshine: 7h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 12min).
Average sunshine days in December
Machynlleth, United Kingdom
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is March (12.3 days).
The month with the least sunshine days is August (6.6 days).
Average UV index in December
Machynlleth, United Kingdom
- 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, March, November and December (UV index 2).
Average cloud cover in December
Machynlleth, United Kingdom
- Average cloud cover in December: 69
The month with the most cloud cover is December (Cloud cover 69).
The months with the least cloud cover are April and May (Cloud cover 56).
Average visibility in December
Machynlleth, United Kingdom
- Average visibility in December: 8km
The month with the highest visibility is March (9km).
The months with the lowest visibility are January, February, April, May, June, July, August, September, October, November and December (8km).
