December weather forecastKalbarri, Australia
December
Weather in December
December, the first month of the summer in Kalbarri, is still a warm month, with an average temperature varying between 20.9°C (69.6°F) and 28.2°C (82.8°F).Temperature
Kalbarri experiences a minor change to a still moderately hot 28.2°C (82.8°F) in average high-temperature during December, closely reflecting November. An average temperature of 20.9°C (69.6°F) marks the nights in December.Heat index
The average heat index in December is calculated to be a tropical 30°C (86°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
In Kalbarri, the average relative humidity in December is 61%.Rainfall
In Kalbarri, in December, during 4.5 rainfall days, 9mm (0.35") of precipitation is typically accumulated. Throughout the year, in Kalbarri, there are 76.8 rainfall days, and 186mm (7.32") of precipitation is accumulated.Sea temperature
In Kalbarri, in December, the average water temperature is 21.8°C (71.2°F).Note: Swimming in 21.8°C (71.2°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
The month with the longest days is December, with an average of 13h and 54min of daylight.On the first day of December, sunrise is at 5:19 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 7:22 pm AWST.
Sunshine
The average sunshine in December in Kalbarri, Australia, is 11.7h.UV index
January, February and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 7 in December leads to these guidelines:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kalbarri, Australia
- Average high temperature in December: 28.2°C
The warmest month (with the highest average high temperature) is February (30.3°C).
The month with the lowest average high temperature is July (19.9°C).
- Average low temperature in December: 20.9°C
The month with the highest average low temperature is February (23.4°C).
The coldest month (with the lowest average low temperature) is August (14.3°C).
Average pressure in December
Kalbarri, Australia
- Average pressure in December: 1009.9mbar
The month with the highest atmospheric pressure is July (1020.3mbar).
The month with the lowest atmospheric pressure is January (1008.3mbar).
Average wind speed in December
Kalbarri, Australia
- Average wind speed in December: 26km/h
The windiest month (with the highest average wind speed) is January (26.1km/h).
The calmest month (with the lowest average wind speed) is July (18.9km/h).
Average humidity in December
Kalbarri, Australia
- Average humidity in December: 61%
The months with the highest relative humidity are August and October (65%).
The month with the lowest relative humidity is May (57%).
Average rainfall in December
Kalbarri, Australia
- Average rainfall in December: 9mm
The wettest month (with the highest rainfall) is June (37mm).
The driest months (with the least rainfall) are October and November (5mm).
Average rainfall days in December
Kalbarri, Australia
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is July (10.4 days).
The month with the least rainy days is November (3.6 days).
Average sea temperature in December
Kalbarri, Australia
- Average sea temperature in December: 21.8°C
The best month for swimming (with the highest average sea temperature) is March (25°C).
The coldest month (with the lowest average sea temperature) is October (19.9°C).
Average daylight in December /
Average sunshine in December
Kalbarri, Australia
- Average daylight in December: 13h and 54min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in December: 11h and 42min
The month with the most sunshine is January (Average sunshine: 11h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 42min).
Average sunshine days in December
Kalbarri, Australia
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is October (25 days).
The months with the least sunshine days are July and August (18.1 days).
Average UV index in December
Kalbarri, Australia
- Average UV index in December: 7
The months with the highest UV index are January, February and December (UV index 7).
The month with the lowest UV index is June (UV index 4).
Average cloud cover in December
Kalbarri, Australia
- Average cloud cover in December: 13
The month with the most cloud cover is July (Cloud cover 23).
The months with the least cloud cover are January and December (Cloud cover 13).
Average visibility in December
Kalbarri, 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).





