December weather forecast
Semplak, Indonesia

December, the first month of the summer in Semplak, is still a warm month, with an average temperature fluctuating between 23.5°C (74.3°F) and 29.7°C (85.5°F).

Temperature

During December, Semplak records an average high-temperature of a warm 29.7°C (85.5°F), marking a slight divergence from November's 30.5°C (86.9°F). An average low-temperature of 23.5°C (74.3°F) marks the nights throughout December.

Heat index

Throughout December, the heat index is estimated at a very hot 36°C (96.8°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. 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 extremely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

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

Rainfall

In December, the rain falls for 28 days. Throughout December, 218mm (8.58") of precipitation is accumulated. In Semplak, during the entire year, the rain falls for 294.7 days and collects up to 1921mm (75.63") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year in Semplak.
On the first day of the month, sunrise is at 05:27 and sunset at 17:56. On the last day of December, sunrise is at 05:41 and sunset at 18:10 WIB.

Sunshine

In Semplak, the average sunshine in December is 8.6h.

UV index

The months with the lowest UV index are January, March, June, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Guard against overexposure. Protection from sun-induced harm is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.