December weather forecast
Port Douglas, Australia

December, the beginning of summer, is characterized by increasing temperatures and humidity in Port Douglas. Rainfall sees a sharp rise to 77mm (3.03"), marking the arrival of the wet season. Although the city witnesses longer daylight hours, the increased cloud cover balances the heat. Stable wind speeds make it conducive for water sports, despite the rain. Impressively, the sea temperature reaches its picks, attracting scuba divers and water enthusiasts.

Temperature

December's advent in Port Douglas denotes a minor fluctuation in the average high-temperature to a still moderately hot 29.2°C (84.6°F) from November's 28.2°C (82.8°F). During the nights in December, an average low-temperature of 23.8°C (74.8°F) is observed.

Heat index

The average heat index in December is appraised at a tropical 34°C (93.2°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. 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

The average relative humidity in December is 76%.

Rainfall

In Port Douglas, in December, it is raining for 12.5 days, with typically 77mm (3.03") of accumulated precipitation. In Port Douglas, Australia, during the entire year, the rain falls for 140.6 days and collects up to 605mm (23.82") of precipitation.

Sea temperature

In Port Douglas, in December, the average water temperature is 29°C (84.2°F).
Note: Swimming, diving, and other water-related activities in temperatures between 25°C (77°F) and 29°C (84.2°F) are considered highly enjoyable and satisfying for longer durations without uneasiness.

Daylight

The month with the longest days is December, with an average of 13h and 6min of daylight.
On the first day of the month, sunrise is at 5:36 am and sunset at 6:38 pm. On the last day of December, in Port Douglas, sunrise is at 5:48 am and sunset at 6:54 pm AEST.

Sunshine

The average sunshine in December is 10.2h.

UV index

January, February, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 7 during December translates into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Alert! UV radiation becomes sharper due to reflections from sand and water.