December weather forecastMount Martha, Australia
December
Weather in December
The first month of the summer, December, is an agreeable month in Mount Martha, Australia, with temperature in the range of an average high of 21.6°C (70.9°F) and an average low of 13.8°C (56.8°F).Temperature
The shift to December signals an average high-temperature of a pleasant 21.6°C (70.9°F), subtly varied from November's 19.9°C (67.8°F). The month of December records an average low-temperature of 13.8°C (56.8°F) in Mount Martha, Australia.Humidity
The average relative humidity in December in Mount Martha is 69%.Rainfall
In Mount Martha, in December, it is raining for 12.6 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, in Mount Martha, there are 177.5 rainfall days, and 562mm (22.13") of precipitation is accumulated.Daylight
With an average of 14h and 48min of daylight, December has the longest days of the year in Mount Martha.On the first day of December, sunrise is at 5:50 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:46 pm AEDT.
Sunshine
December has the most sunshine of the year, with an average of 9.7h of sunshine.UV index
The month with the highest UV index in Mount Martha is December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 6 during December translates into the following directions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mount Martha, Australia
- Average high temperature in December: 21.6°C
The warmest months (with the highest average high temperature) are January and February (23.4°C).
The month with the lowest average high temperature is July (13°C).
- Average low temperature in December: 13.8°C
The month with the highest average low temperature is February (16.2°C).
The coldest months (with the lowest average low temperature) are July and August (8.6°C).
Average pressure in December
Mount Martha, Australia
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.6mbar).
Average wind speed in December
Mount Martha, Australia
- Average wind speed in December: 14km/h
The windiest months (with the highest average wind speed) are July and August (18.6km/h).
The calmest months (with the lowest average wind speed) are January, March and December (14km/h).
Average humidity in December
Mount Martha, Australia
- Average humidity in December: 69%
The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is January (68%).
Average rainfall in December
Mount Martha, Australia
- Average rainfall in December: 44mm
The wettest month (with the highest rainfall) is May (59mm).
The driest month (with the least rainfall) is March (34mm).
Average rainfall days in December
Mount Martha, Australia
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is January (10.1 days).
Average daylight in December /
Average sunshine in December
Mount Martha, Australia
- Average daylight in December: 14h and 48min
The month with the longest days is December (Average daylight: 14h and 48min).
The month with the shortest days is June (Average daylight: 9h and 30min).
- Average sunshine in December: 9h and 42min
The month with the most sunshine is December (Average sunshine: 9h and 42min).
The month with the least sunshine is May (Average sunshine: 6h and 24min).
Average sunshine days in December
Mount Martha, Australia
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is August (9.4 days).
Average UV index in December
Mount Martha, Australia
- Average UV index in December: 6
The month with the highest UV index is December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 3).
Average cloud cover in December
Mount Martha, Australia
- Average cloud cover in December: 35
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in December
Mount Martha, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
