December weather forecast
Díli, East Timor

Closing in on the year in Díli, December marks the month with the highest rainfall. An immense increment to 145mm (5.71") from the past month's 61mm (2.4") could be seen. Despite the increased rainfall, Díli enjoys warm temperatures as it is the start of the summer season. The city also receives ample daylight hours and a relatively high amount of daily sunshine. In summary, December sums up the prevailing tropical nature of Díli, bringing the year full circle with warmth, high humidity, and plenty of rainfall.

Temperature

The average high-temperature during December is a still hot 31.1°C (88°F), almost matching the conditions of the preceding month. Díli records an average low-temperature of 23.6°C (74.5°F) throughout the month of December.

Heat index

For December, the heat index is calculated to be a blistering 40°C (104°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Díli, the average relative humidity in December is 77%.

Rainfall

December is the month with the most rainfall. Rain falls for 11 days and accumulates 145mm (5.71") of precipitation.

Sea temperature

December is the month with the warmest seawater, with an average sea temperature of 30.6°C (87.1°F).
Note: Swimming or participating in water activities at temperatures above 30°C (86°F) might not be as invigorating as one might hope.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 06:09 and sunset at 18:44. On the last day of the month, sunrise is at 06:22 and sunset at 18:59 +09.

Sunshine

In December, the average sunshine is 7.1h.

UV index

The months with the highest UV index are January through April, August through December, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the UV index of 12 transforms into the following advice:
Adopt all essential precautions. Preventing sun harm is crucial. 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. To cut down UV radiation exposure by about half, sport a wide-brim hat. Even if it's cloudy, generously apply and frequently reapply a sunscreen with no less than a 30 sun protection factor after each swim or outdoor exercise. Caution! The Sun's UV rays become stronger due to reflections from water and sand.