December weather forecastUlladulla, Australia
December
Weather in December
The first month of the summer, December, is still a pleasant month in Ulladulla, Australia, with an average temperature ranging between max 22.9°C (73.2°F) and min 18°C (64.4°F).Temperature
The transition into December marks the average high-temperature at a still pleasant 22.9°C (73.2°F), differing minimally from November's 21.1°C (70°F). During December, Ulladulla's nights hold steady with an average temperature of 18°C (64.4°F), barely dropping from the daytime highs.Humidity
The average relative humidity in December is 75%.Rainfall
In December, the rain falls for 14.4 days. Throughout December, 49mm (1.93") of precipitation is accumulated. In Ulladulla, during the entire year, the rain falls for 166.4 days and collects up to 635mm (25") of precipitation.Sea temperature
In Ulladulla, the average seawater temperature in December is 20.8°C (69.4°F).Note: Swimming in 20.8°C (69.4°F) is not a pleasurable activity for the majority of people. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
With an average of 14h and 30min of daylight, December has the longest days of the year in Ulladulla.On the first day of the month, sunrise is at 5:36 am and sunset at 7:58 pm. On the last day of December, sunrise is at 5:45 am and sunset at 8:16 pm AEDT.
Sunshine
In Ulladulla, Australia, the average sunshine in December is 9.9h.UV index
The months with the highest UV index are January, February and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 6 during December, leads to the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ulladulla, Australia
- Average high temperature in December: 22.9°C
The warmest month (with the highest average high temperature) is January (24.3°C).
The month with the lowest average high temperature is July (15.7°C).
- Average low temperature in December: 18°C
The month with the highest average low temperature is February (19.7°C).
The coldest month (with the lowest average low temperature) is July (11.5°C).
Average pressure in December
Ulladulla, Australia
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is June (1020.6mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Ulladulla, Australia
- Average wind speed in December: 19.3km/h
The windiest month (with the highest average wind speed) is August (21km/h).
The calmest month (with the lowest average wind speed) is April (18.4km/h).
Average humidity in December
Ulladulla, Australia
- Average humidity in December: 75%
The months with the highest relative humidity are January and February (76%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Ulladulla, Australia
- Average rainfall in December: 49mm
The wettest month (with the highest rainfall) is June (71mm).
The driest month (with the least rainfall) is September (34mm).
Average rainfall days in December
Ulladulla, Australia
- Average rainfall days in December: 14.4 days
The month with the highest number of rainy days is November (15.5 days).
The month with the least rainy days is May (11.4 days).
Average sea temperature in December
Ulladulla, Australia
- Average sea temperature in December: 20.8°C
The best month for swimming (with the highest average sea temperature) is February (23.2°C).
The coldest month (with the lowest average sea temperature) is August (17.4°C).
Average daylight in December /
Average sunshine in December
Ulladulla, 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: 9h and 54min
The month with the most sunshine is November (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in December
Ulladulla, Australia
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is July (15.8 days).
The month with the least sunshine days is February (11.7 days).
Average UV index in December
Ulladulla, Australia
- Average UV index in December: 6
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are June, July, August and September (UV index 4).
Average cloud cover in December
Ulladulla, Australia
- Average cloud cover in December: 36
The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are May, July and August (Cloud cover 26).
Average visibility in December
Ulladulla, 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).
