December weather forecastRydalmere, Australia
December
Weather in December
December, the first month of the summer in Rydalmere, is still a warm month, with temperature in the range of an average low of 17.1°C (62.8°F) and an average high of 27.7°C (81.9°F).Temperature
In December, Rydalmere notes an average high-temperature of a still moderately hot 27.7°C (81.9°F), hardly different from the preceding month. The average temperature in Rydalmere during December nights dips to a comfortable 17.1°C (62.8°F).Heat index
December's mean heat index is computed to be a hot 30°C (86°F). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In December, the average relative humidity in Rydalmere is 68%.Rainfall
In December, in Rydalmere, the rain falls for 14 days. Throughout December, 36mm (1.42") of precipitation is accumulated. In Rydalmere, Australia, during the entire year, the rain falls for 149.1 days and collects up to 546mm (21.5") of precipitation.Daylight
With an average of 14h and 24min of daylight, December has the longest days of the year in Rydalmere.On the first day of the month, sunrise is at 5:37 am and sunset at 7:51 pm. On the last day of December, sunrise is at 5:47 am and sunset at 8:09 pm AEDT.
Sunshine
November and December, with an average of 9.4h of sunshine, are months with the most sunshine.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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 during December translates into the following guidance:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rydalmere, Australia
- Average high temperature in December: 27.7°C
The warmest month (with the highest average high temperature) is January (29.2°C).
The month with the lowest average high temperature is June (16.8°C).
- Average low temperature in December: 17.1°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).
Average pressure in December
Rydalmere, Australia
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Rydalmere, Australia
- Average wind speed in December: 10.2km/h
The windiest month (with the highest average wind speed) is December (10.2km/h).
The calmest month (with the lowest average wind speed) is April (8.8km/h).
Average humidity in December
Rydalmere, Australia
- Average humidity in December: 68%
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is September (65%).
Average rainfall in December
Rydalmere, Australia
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is February (87mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in December
Rydalmere, Australia
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is March (17.6 days).
The month with the least rainy days is August (7.9 days).
Average daylight in December /
Average sunshine in December
Rydalmere, Australia
- Average daylight in December: 14h and 24min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 9h and 24min
The months with the most sunshine are November and December (Average sunshine: 9h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in December
Rydalmere, Australia
- Average sunshine days in December: 14.2 days
The month with the most sunshine days is August (21 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in December
Rydalmere, 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 4).
Average cloud cover in December
Rydalmere, Australia
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Rydalmere, Australia
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
