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
As November transitions into December, a subtle temperature shift is observed, with average highs adjusting from a warm 24.5°C (76.1°F) to a still moderately hot 27.7°C (81.9°F). Horsham's average low-temperature for the month of December denotes a significant decline from the daily high, recording at a refreshing 14.5°C (58.1°F).Heat index
The heat index in December is evaluated at 28°C (82.4°F). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In December, the average relative humidity in Horsham is 50%.Rainfall
The month with the most rainfall in Horsham is December, when the rain falls for 8.5 days and typically aggregates up to 38mm (1.5") of precipitation.Daylight
The month with the longest days is December, with an average of 14h and 36min of daylight.On the first day of the month, sunrise is at 6:05 am and sunset at 8:34 pm. On the last day of December, sunrise is at 6:15 am and sunset at 8:53 pm AEDT.
Sunshine
The average sunshine in December in Horsham is 8.8h.UV index
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index in Horsham. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 6 during December translates into the following directions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Horsham in December?
What is the average humidity in December in Horsham?
What is the wettest month in Horsham?
How much does it rain in Horsham in December?
When are the longest days in Horsham?
What is the average length of the day in December in Horsham?
When is the sunrise / sunset in December in Horsham?
How long on average sun shines in December in Horsham?
When is the highest UV index in Horsham?
What is the UV index reading in December in Horsham?
Average temperature in December
Horsham, Australia
- Average high temperature in December: 27.7°C
The warmest month (with the highest average high temperature) is January (30.6°C).
The month with the lowest average high temperature is July (12.8°C).
- Average low temperature in December: 14.5°C
The months with the highest average low temperature are January and February (16.7°C).
The coldest month (with the lowest average low temperature) is August (5.3°C).
Average pressure in December
Horsham, Australia
- Average pressure in December: 1012.6mbar
The month with the highest atmospheric pressure is June (1021.8mbar).
The month with the lowest atmospheric pressure is January (1012.1mbar).
Average wind speed in December
Horsham, Australia
- Average wind speed in December: 13.4km/h
The windiest month (with the highest average wind speed) is August (14.3km/h).
The calmest month (with the lowest average wind speed) is April (11.9km/h).
Average humidity in December
Horsham, Australia
- Average humidity in December: 50%
The months with the highest relative humidity are July and August (80%).
The month with the lowest relative humidity is January (44%).
Average rainfall in December
Horsham, Australia
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is December (38mm).
The driest months (with the least rainfall) are February and March (15mm).
Average rainfall days in December
Horsham, Australia
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is August (13.3 days).
The month with the least rainy days is January (5 days).
Average daylight in December /
Average sunshine in December
Horsham, Australia
- Average daylight in December: 14h and 4min
The month with the longest days is December (Average daylight: 14h and 36min).
The month with the shortest days is June (Average daylight: 9h and 42min).
- Average sunshine in December: 8h and 5min
The month with the most sunshine is January (Average sunshine: 9h and 18min).
The months with the least sunshine are July and August (Average sunshine: 6h and 48min).
Average sunshine days in December
Horsham, Australia
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is August (14.2 days).
Average UV index in December
Horsham, 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 May, June, July, August and September (UV index 3).
Average cloud cover in December
Horsham, Australia
- Average cloud cover in December: 24
The month with the most cloud cover is July (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility in December
Horsham, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April and December (10km).
The month with the lowest visibility is September (8km).
