December weather forecastMernda, Australia
December weather for Mernda, Australia: December, the first month of the summer in Mernda, is a moderately hot month, with an average temperature ranging between max 23.7°C (74.7°F) and min 12.7°C (54.9°F). The month with the longest days in Mernda is December, with an average of 14h and 42min of daylight.
December
Weather in December
December, the first month of the summer in Mernda, is a moderately hot month, with an average temperature ranging between max 23.7°C (74.7°F) and min 12.7°C (54.9°F).Temperature
Mernda, Australia, experiences a recorded average high-temperature of a warm 23.7°C (74.7°F) in December, closely aligned with November's 21.5°C (70.7°F). In the month of December, the temperature generally rests at an average low of 12.7°C (54.9°F).Humidity
In December, the average relative humidity in Mernda is 65%.Rainfall
The wettest months are August and December, with an average 45mm (1.77") of rainfall.Daylight
The month with the longest days in Mernda is December, with an average of 14h and 42min of daylight.On the first day of December, sunrise is at 5:51 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:44 pm AEDT.
Sunshine
December has the most sunshine of the year in Mernda, with an average of 9.8h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 during December translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mernda, Australia
- Average high temperature in December: 23.7°C
The warmest month (with the highest average high temperature) is January (25.8°C).
The month with the lowest average high temperature is July (12.4°C).
- Average low temperature in December: 12.7°C
The month with the highest average low temperature is February (14.8°C).
The coldest month (with the lowest average low temperature) is August (6.6°C).
Average pressure in December
Mernda, Australia
- Average pressure in December: 1012.6mbar
The month with the highest atmospheric pressure is June (1021.4mbar).
The month with the lowest atmospheric pressure is January (1012.3mbar).
Average wind speed in December
Mernda, Australia
- Average wind speed in December: 11.1km/h
The windiest month (with the highest average wind speed) is August (13.9km/h).
The calmest month (with the lowest average wind speed) is April (10.6km/h).
Average humidity in December
Mernda, Australia
- Average humidity in December: 65%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is January (63%).
Average rainfall in December
Mernda, Australia
- Average rainfall in December: 45mm
The wettest months (with the highest rainfall) are August and December (45mm).
The driest months (with the least rainfall) are March and April (34mm).
Average rainfall days in December
Mernda, Australia
- Average rainfall days in December: 12.2 days
The months with the highest number of rainy days are July and August (16.9 days).
The month with the least rainy days is January (9.5 days).
Average daylight in December /
Average sunshine in December
Mernda, Australia
- Average daylight in December: 14h and 42min
The month with the longest days is December (Average daylight: 14h and 42min).
The month with the shortest days is June (Average daylight: 9h and 36min).
- Average sunshine in December: 9h and 48min
The month with the most sunshine is December (Average sunshine: 9h and 48min).
The months with the least sunshine are July and August (Average sunshine: 6h and 30min).
Average sunshine days in December
Mernda, Australia
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is January (16.7 days).
The months with the least sunshine days are July and August (10.5 days).
Average UV index in December
Mernda, Australia
- Average UV index in December: 5
The months with the highest UV index are January, February, March, October, November and December (UV index 5).
The months with the lowest UV index are May, June, July, August and September (UV index 3).
Average cloud cover in December
Mernda, Australia
- Average cloud cover in December: 33
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in December
Mernda, Australia
- Average visibility in December: 9km
The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are April, May, June, July, August, September, October, November and December (9km).
