December weather forecastGuilderton, Australia
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Guilderton, Australia, with an average temperature ranging between max 27°C (80.6°F) and min 17.8°C (64°F).Temperature
With the onset of December, Guilderton's average high-temperature clocks in at a still moderately hot 27°C (80.6°F), showing a minor fluctuation from the previous month. Guilderton's temperature drops to an average low of 17.8°C (64°F) during the nights of December.Heat index
December's heat index is estimated at 28°C (82.4°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In December, the average relative humidity in Guilderton is 57%.Rainfall
March and December are months with the least rain in Guilderton when the rain falls for 5.4 days and typically aggregates up to 11mm (0.43") of rain.Daylight
December has the longest days of the year, with an average of 14h and 6min of daylight.On the first day of December, sunrise is at 5:06 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 7:25 pm AWST.
Sunshine
In Guilderton, the average sunshine in December is 11.5h.UV index
January through March and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 6 during December translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guilderton, Australia
- Average high temperature in December: 27°C
The warmest months (with the highest average high temperature) are January and February (28.8°C).
The month with the lowest average high temperature is July (17.2°C).
- Average low temperature in December: 17.8°C
The month with the highest average low temperature is February (19.8°C).
The coldest months (with the lowest average low temperature) are August and September (11.2°C).
Average pressure in December
Guilderton, Australia
- Average pressure in December: 1012.4mbar
The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is January (1011.2mbar).
Average wind speed in December
Guilderton, Australia
- Average wind speed in December: 17.1km/h
The windiest month (with the highest average wind speed) is January (17.3km/h).
The calmest month (with the lowest average wind speed) is April (14.1km/h).
Average humidity in December
Guilderton, Australia
- Average humidity in December: 57%
The months with the highest relative humidity are July and August (73%).
The month with the lowest relative humidity is January (56%).
Average rainfall in December
Guilderton, Australia
- Average rainfall in December: 11mm
The wettest month (with the highest rainfall) is June (69mm).
The driest months (with the least rainfall) are March and December (11mm).
Average rainfall days in December
Guilderton, Australia
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (5.2 days).
Average daylight in December /
Average sunshine in December
Guilderton, Australia
- Average daylight in December: 14h and 6min
The month with the longest days is December (Average daylight: 14h and 6min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in December: 11h and 30min
The month with the most sunshine is January (Average sunshine: 11h and 36min).
The month with the least sunshine is July (Average sunshine: 5h and 54min).
Average sunshine days in December
Guilderton, Australia
- Average sunshine days in December: 23.9 days
The month with the most sunshine days is December (23.9 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in December
Guilderton, Australia
- Average UV index in December: 6
The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 4).
Average cloud cover in December
Guilderton, Australia
- Average cloud cover in December: 14
The month with the most cloud cover is July (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in December
Guilderton, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





