December weather forecast
Mareeba, Australia

The first month of the summer, December, is still a hot month in Mareeba, Australia, with an average temperature ranging between max 30.3°C (86.5°F) and min 19.6°C (67.3°F).

Temperature

The highest temperatures are recorded in December, with averages reaching a high of 30.3°C (86.5°F) and a low of 19.6°C (67.3°F).

Heat index

December's average heat index is estimated at a very hot 37°C (98.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index values are typically calculated for conditions of shade and a light breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In December, in Mareeba, the rain falls for 17.4 days. Throughout December, 100mm (3.94") of precipitation is accumulated. Throughout the year, in Mareeba, there are 162.7 rainfall days, and 659mm (25.94") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 13h and 6min of daylight.
On the first day of December in Mareeba, Australia, sunrise is at 5:35 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 6:55 pm AEST.

Sunshine

In Mareeba, the average sunshine in December is 9.7h.

UV index

The months with the highest UV index are January through March, September through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.