Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December's onset records a minor alteration in the average high-temperature to a still moderately hot 25.5°C (77.9°F) from November's 23.8°C (74.8°F). In December, the nighttime temperature lowers to an average of 18.4°C (65.1°F).Humidity
In December, the average relative humidity is 71%.Rainfall
In Jannali, Australia, during December, the rain falls for 10.5 days and regularly aggregates up to 23mm (0.91") of precipitation. In Jannali, during the entire year, the rain falls for 139.8 days and collects up to 348mm (13.7") of precipitation.Sea temperature
In Jannali, the average seawater temperature in December is 21.6°C (70.9°F).Note: For most individuals, swimming in 21.6°C (70.9°F) is not a pleasant experience. The difficulty in managing breathing increases as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
December has the longest days of the year in Jannali, with an average of 14h and 24min of daylight.On the first day of the month, sunrise is at 5:37 am and sunset at 7:52 pm. On the last day of December, in Jannali, sunrise is at 5:47 am and sunset at 8:10 pm AEDT.
Sunshine
The average sunshine in December in Jannali is 9.7h.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 value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 in December translates into these instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less 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. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Notice! Sand and water reflections contribute to a stronger UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Jannali?
What is the average humidity in December in Jannali?
How many days does it rain in December in Jannali?
How cold is the water in December in Jannali?
When are the longest days in Jannali?
What is the average length of the day in December in Jannali?
What time are sunrise and sunset in December in Jannali?
How many hours of sunshine does Jannali have in December?
When is the highest UV index in Jannali?
How high is the UV index in December in Jannali?
Average temperature in December
Jannali, Australia
- Average high temperature in December: 25.5°C
The warmest month (with the highest average high temperature) is January (26.9°C).
The month with the lowest average high temperature is July (16.6°C).
- Average low temperature in December: 18.4°C
The months with the highest average low temperature are January and February (20.1°C).
The coldest month (with the lowest average low temperature) is July (10.1°C).
Average pressure in December
Jannali, Australia
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is June (1020.8mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Jannali, Australia
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is August (15.8km/h).
The calmest month (with the lowest average wind speed) is April (13.5km/h).
Average humidity in December
Jannali, Australia
- Average humidity in December: 71%
The month with the highest relative humidity is February (75%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Jannali, Australia
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is March (43mm).
The driest month (with the least rainfall) is September (17mm).
Average rainfall days in December
Jannali, Australia
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (9.2 days).
Average sea temperature in December
Jannali, Australia
- Average sea temperature in December: 21.6°C
The best month for swimming (with the highest average sea temperature) is February (23.8°C).
The coldest month (with the lowest average sea temperature) is September (18.4°C).
Average daylight in December /
Average sunshine in December
Jannali, Australia
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 9h and 4min
The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in December
Jannali, Australia
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is July (17.6 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in December
Jannali, 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 May, June, July, August and September (UV index 4).
Average cloud cover in December
Jannali, Australia
- Average cloud cover in December: 37
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Jannali, 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).
