December weather forecastClapham, Australia
December
Weather in December
The first month of the summer, December, is a moderately hot month in Clapham, Australia, with temperature in the range of an average high of 24.5°C (76.1°F) and an average low of 16°C (60.8°F).Temperature
December brings an average high-temperature of a warm 24.5°C (76.1°F), nearly identical to the preceding month. Clapham's average low-temperature for the month of December records at a refreshing 16°C (60.8°F).Humidity
The average relative humidity in December is 59%.Rainfall
In Clapham, in December, it is raining for 9.5 days, with typically 24mm (0.94") of accumulated precipitation. In Clapham, during the entire year, the rain falls for 126.2 days and collects up to 326mm (12.83") of precipitation.Daylight
December has the longest days of the year, with an average of 14h and 30min of daylight.On the first day of December in Clapham, sunrise is at 5:54 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:32 pm ACDT.
Sunshine
The month with the most sunshine is December, with an average of 10.1h of sunshine.UV index
February and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 6 in December leads to these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun 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
Clapham, Australia
- Average high temperature in December: 24.5°C
The warmest month (with the highest average high temperature) is January (26.3°C).
The month with the lowest average high temperature is July (13.9°C).
- Average low temperature in December: 16°C
The month with the highest average low temperature is January (17.8°C).
The coldest month (with the lowest average low temperature) is August (9.1°C).
Average pressure in December
Clapham, Australia
- Average pressure in December: 1013mbar
The month with the highest atmospheric pressure is June (1021.8mbar).
The month with the lowest atmospheric pressure is January (1012.4mbar).
Average wind speed in December
Clapham, Australia
- Average wind speed in December: 14.3km/h
The windiest month (with the highest average wind speed) is August (16.3km/h).
The calmest month (with the lowest average wind speed) is April (12.9km/h).
Average humidity in December
Clapham, Australia
- Average humidity in December: 59%
The months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (58%).
Average rainfall in December
Clapham, Australia
- Average rainfall in December: 24mm
The wettest month (with the highest rainfall) is August (43mm).
The driest month (with the least rainfall) is March (16mm).
Average rainfall days in December
Clapham, Australia
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (6.2 days).
Average daylight in December /
Average sunshine in December
Clapham, Australia
- Average daylight in December: 14h and 30min
The month with the longest days is December (Average daylight: 14h and 30min).
The month with the shortest days is June (Average daylight: 9h and 48min).
- Average sunshine in December: 10h and 6min
The month with the most sunshine is December (Average sunshine: 10h and 6min).
The month with the least sunshine is August (Average sunshine: 7h and 6min).
Average sunshine days in December
Clapham, Australia
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is August (12.7 days).
Average UV index in December
Clapham, Australia
- Average UV index in December: 6
The months with the highest UV index are February and December (UV index 6).
The month with the lowest UV index is June (UV index 3).
Average cloud cover in December
Clapham, Australia
- Average cloud cover in December: 25
The month with the most cloud cover is July (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in December
Clapham, 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).
