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
December's advent presents an average high-temperature of a wintry 4.8°C (40.6°F), indicating a slight variation from the conditions of the previous month. During December, the nighttime temperatures in Perth align closely with the daytime averages, measuring a still icy 1°C (33.8°F).Humidity
The months with the highest humidity are January, November and December, with an average relative humidity of 89%.Rainfall
In December, the rain falls for 13.5 days. Throughout December, 41mm (1.61") of precipitation is accumulated. In Perth, during the entire year, the rain falls for 193.4 days and collects up to 508mm (20") of precipitation.Snowfall
Months with snowfall in Perth are January through May, November and December. In Perth, during December, snow falls for 2.5 days and regularly aggregates up to 39mm (1.54") of snow. Throughout the year, there are 15.6 snowfall days, and 167mm (6.57") of snow is accumulated.Daylight
The month with the shortest days in Perth is December, with an average of 7h and 0min of daylight.On the first day of the month, sunrise is at 8:23 am and sunset at 3:42 pm. On the last day of December, in Perth, sunrise is at 8:47 am and sunset at 3:46 pm GMT.
Sunshine
The average sunshine in December in Perth is 4.6h.UV index
The average daily maximum UV index in December in Perth is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 2 in December transforms into this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Perth in December?
What is the most humid month in Perth?
What is the average humidity in December in Perth?
How much does it rain in Perth in December?
How much does it snow in Perth in December?
What is the month with the shortest days in Perth?
How many hours of daylight does Perth have in December?
What time are sunrise and sunset in December in Perth?
How many hours of sunshine does Perth have in December?
What is the UV index reading in December in Perth?
Average temperature in December
Perth, United Kingdom
- Average high temperature in December: 4.8°C
The warmest month (with the highest average high temperature) is July (17.1°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in December: 1°C
The month with the highest average low temperature is August (9.4°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in December
Perth, United Kingdom
- Average pressure in December: 1007.3mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed in December
Perth, United Kingdom
- Average wind speed in December: 16.2km/h
The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest months (with the lowest average wind speed) are June and July (11.1km/h).
Average humidity in December
Perth, United Kingdom
- Average humidity in December: 89%
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is April (81%).
Average rainfall in December
Perth, United Kingdom
- Average rainfall in December: 41mm
The wettest month (with the highest rainfall) is August (67mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in December
Perth, United Kingdom
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (21.9 days).
The month with the least rainy days is February (11.9 days).
Average snowfall in December
Perth, United Kingdom
- Average snowfall in December: 39mm
The month with the highest snowfall is February (55mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Perth, United Kingdom
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (4.7 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
Perth, United Kingdom
- Average daylight in December: 7h and 0min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 7h and 30min).
The months with the least sunshine are February and October (Average sunshine: 4h and 12min).
Average sunshine days in December
Perth, United Kingdom
- Average sunshine days in December: 12.8 days
The month with the most sunshine days is November (13.8 days).
The month with the least sunshine days is July (5.5 days).
Average UV index in December
Perth, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Perth, United Kingdom
- Average cloud cover in December: 55
The month with the most cloud cover is June (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in December
Perth, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May and December (9km).
The months with the lowest visibility are June, July, August, September, October and November (8km).
