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
The average high-temperature mildly increases in December, edging from a warm 26.4°C (79.5°F) in November to a still moderately hot 29.4°C (84.9°F). December nights indicate a noticeable temperature drop from the daytime highs, with an average reading lowering to a comfortable 16.9°C (62.4°F).Heat index
In December, the heat index is computed to be a tropical 30°C (86°F). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in December is 51%.Rainfall
March and December are months with the least rain in Walliston when the rain falls for 5 days and typically aggregates up to 9mm (0.35") of rain.Daylight
With an average of 14h and 12min of daylight, December has the longest days of the year in Walliston.On the first day of December, sunrise is at 5:02 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 7:25 pm AWST.
Sunshine
The months with the most sunshine in Walliston, Australia, are January and December, with an average of 11.5h of sunshine.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 estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 6 suggests this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is December in Walliston?
What is the average humidity in December in Walliston?
What is the driest month in Walliston?
How much does it rain in Walliston in December?
When are the longest days in Walliston?
How many hours of daylight does Walliston have in December?
What time are sunrise and sunset in December in Walliston?
What is the month with the most sunshine in Walliston?
How long on average sun shines in December in Walliston?
What are the months with the highest UV index in Walliston?
What is the UV index reading in December in Walliston?
Average temperature in December
Walliston, Australia
- Average high temperature in December: 29.4°C
The warmest months (with the highest average high temperature) are January and February (31.2°C).
The month with the lowest average high temperature is July (16.7°C).
- Average low temperature in December: 16.9°C
The month with the highest average low temperature is February (18.8°C).
The coldest months (with the lowest average low temperature) are July, August and September (9.7°C).
Average pressure in December
Walliston, Australia
- Average pressure in December: 1012.5mbar
The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is January (1011.4mbar).
Average wind speed in December
Walliston, Australia
- Average wind speed in December: 13.6km/h
The windiest month (with the highest average wind speed) is February (14.1km/h).
The calmest month (with the lowest average wind speed) is May (11.4km/h).
Average humidity in December
Walliston, Australia
- Average humidity in December: 51%
The months with the highest relative humidity are July and August (75%).
The month with the lowest relative humidity is January (50%).
Average rainfall in December
Walliston, Australia
- Average rainfall in December: 9mm
The wettest month (with the highest rainfall) is June (66mm).
The driest months (with the least rainfall) are March and December (9mm).
Average rainfall days in December
Walliston, Australia
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (4.3 days).
Average daylight in December /
Average sunshine in December
Walliston, Australia
- Average daylight in December: 14h and 1min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in December: 11h and 3min
The months with the most sunshine are January and December (Average sunshine: 11h and 30min).
The month with the least sunshine is August (Average sunshine: 5h and 30min).
Average sunshine days in December
Walliston, Australia
- Average sunshine days in December: 24.7 days
The month with the most sunshine days is December (24.7 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in December
Walliston, 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 May, June, July and August (UV index 4).
Average cloud cover in December
Walliston, Australia
- Average cloud cover in December: 15
The month with the most cloud cover is July (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in December
Walliston, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).
