December weather forecastMerredin, Australia
December
Weather in December
The first month of the summer, December, is a hot month in Merredin, Australia, with an average temperature fluctuating between 31.2°C (88.2°F) and 17.9°C (64.2°F).Temperature
In December, Merredin experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 28.5°C (83.3°F) in November to a tropical 31.2°C (88.2°F). Throughout the month of December, Merredin observes a dramatic downturn from the daytime peak temperatures, expecting an average low of 17.9°C (64.2°F).Humidity
December is the least humid month in Merredin, with an average relative humidity of 38%.Rainfall
In Merredin, in December, during 4.8 rainfall days, 12mm (0.47") of precipitation is typically accumulated. In Merredin, during the entire year, the rain falls for 85.5 days and collects up to 202mm (7.95") of precipitation.Daylight
With an average of 14h and 12min of daylight, December has the longest days of the year in Merredin.On the first day of December in Merredin, Australia, sunrise is at 4:54 am and sunset at 6:57 pm. On the last day of the month, sunrise is at 5:04 am and sunset at 7:14 pm AWST.
Sunshine
In December, the average sunshine in Merredin is 11.5h.UV index
December is the month with the highest UV index in Merredin, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 7 suggests this advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Merredin, Australia
- Average high temperature in December: 31.2°C
The warmest month (with the highest average high temperature) is January (33.5°C).
The month with the lowest average high temperature is July (15.6°C).
- Average low temperature in December: 17.9°C
The month with the highest average low temperature is February (20.1°C).
The coldest month (with the lowest average low temperature) is August (7.3°C).
Average pressure in December
Merredin, Australia
- Average pressure in December: 1011.8mbar
The months with the highest atmospheric pressure are June and July (1021.2mbar).
The month with the lowest atmospheric pressure is January (1010.9mbar).
Average wind speed in December
Merredin, Australia
- Average wind speed in December: 16.5km/h
The windiest months (with the highest average wind speed) are January and February (17.4km/h).
The calmest month (with the lowest average wind speed) is May (13.9km/h).
Average humidity in December
Merredin, Australia
- Average humidity in December: 38%
The month with the highest relative humidity is August (75%).
The month with the lowest relative humidity is December (38%).
Average rainfall in December
Merredin, Australia
- Average rainfall in December: 12mm
The wettest month (with the highest rainfall) is July (27mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in December
Merredin, Australia
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is August (10.8 days).
The month with the least rainy days is December (4.8 days).
Average daylight in December /
Average sunshine in December
Merredin, Australia
- Average daylight in December: 14h and 12min
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 30min
The month with the most sunshine is January (Average sunshine: 11h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 48min).
Average sunshine days in December
Merredin, Australia
- Average sunshine days in December: 24.8 days
The month with the most sunshine days is December (24.8 days).
The month with the least sunshine days is July (17.3 days).
Average UV index in December
Merredin, Australia
- Average UV index in December: 7
The month with the highest UV index is December (UV index 7).
The month with the lowest UV index is July (UV index 3).
Average cloud cover in December
Merredin, Australia
- Average cloud cover in December: 15
The month with the most cloud cover is July (Cloud cover 34).
The month with the least cloud cover is January (Cloud cover 14).
Average visibility in December
Merredin, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
