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 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
Mannum experiences a minor change to a still moderately hot 27.6°C (81.7°F) in average high-temperature during December, closely reflecting November. In December, the temperature in Mannum registers a significant dip to an average of 15.2°C (59.4°F) at night.Heat index
The heat index value during December is appraised at 28°C (82.4°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.It is important to note that the heat index values are for shaded areas and light wind scenarios. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In December, the average relative humidity in Mannum, Australia, is 53%.Rainfall
In December, in Mannum, Australia, the rain falls for 8.2 days. Throughout December, 18mm (0.71") of precipitation is accumulated. Throughout the year, in Mannum, there are 112.2 rainfall days, and 219mm (8.62") of precipitation is accumulated.Daylight
The month with the longest days is December, with an average of 14h and 30min of daylight.On the first day of the month, sunrise is at 5:52 am and sunset at 8:11 pm. On the last day of December, sunrise is at 6:01 am and sunset at 8:29 pm ACDT.
Sunshine
With an average of 10.5h of sunshine, December has the most sunshine of the year in Mannum.UV index
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: An average UV index of 6 in December transforms into this advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Mannum in December?
What is the average humidity in December in Mannum?
How many days does it rain in December in Mannum?
When are the longest days in Mannum?
How many hours of daylight does Mannum have in December?
What time are sunrise and sunset in December in Mannum?
What month has the most sunshine in Mannum?
How long on average sun shines in December in Mannum?
When is the highest UV index in Mannum?
What is the UV index intensity in December in Mannum?
Average temperature in December
Mannum, Australia
- Average high temperature in December: 27.6°C
The warmest month (with the highest average high temperature) is January (29.6°C).
The month with the lowest average high temperature is July (14.6°C).
- Average low temperature in December: 15.2°C
The month with the highest average low temperature is January (16.8°C).
The coldest month (with the lowest average low temperature) is August (6.7°C).
Average pressure in December
Mannum, Australia
- Average pressure in December: 1012.9mbar
The month with the highest atmospheric pressure is June (1021.8mbar).
The month with the lowest atmospheric pressure is January (1012.2mbar).
Average wind speed in December
Mannum, Australia
- Average wind speed in December: 12.7km/h
The windiest month (with the highest average wind speed) is August (13km/h).
The calmest month (with the lowest average wind speed) is April (10.1km/h).
Average humidity in December
Mannum, Australia
- Average humidity in December: 53%
The month with the highest relative humidity is July (76%).
The month with the lowest relative humidity is January (51%).
Average rainfall in December
Mannum, Australia
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is May (26mm).
The driest month (with the least rainfall) is March (12mm).
Average rainfall days in December
Mannum, Australia
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is July (13.9 days).
The months with the least rainy days are January and February (5.8 days).
Average daylight in December /
Average sunshine in December
Mannum, Australia
- Average daylight in December: 14h and 3min
The month with the longest days is December (Average daylight: 14h and 30min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 10h and 3min
The month with the most sunshine is December (Average sunshine: 10h and 30min).
The month with the least sunshine is August (Average sunshine: 7h and 6min).
Average sunshine days in December
Mannum, Australia
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is July (14.2 days).
Average UV index in December
Mannum, Australia
- Average UV index in December: 6
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in December
Mannum, Australia
- Average cloud cover in December: 24
The months with the most cloud cover are May, July and August (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in December
Mannum, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
