December weather forecast
Ruteng, Indonesia

The first month of the summer, December, is still a hot month in Ruteng, Indonesia, with temperature in the range of an average low of 25.6°C (78.1°F) and an average high of 30°C (86°F).

Temperature

Ruteng, Indonesia, notes an average high-temperature of a still tropical 30°C (86°F) in December, hardly diverging from November. Ruteng's average low temperature, barely cooler than the daytime high, steadies at a moderately hot 25.6°C (78.1°F) during December.

Heat index

For most parts of December, the heat index is computed to be a fiery hot 37°C (98.6°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Ruteng, the average relative humidity in December is 78%.

Rainfall

In Ruteng, during December, the rain falls for 28.5 days and regularly aggregates up to 156mm (6.14") of precipitation. In Ruteng, during the entire year, the rain falls for 191.2 days and collects up to 892mm (35.12") of precipitation.

Daylight

With an average of 12h and 36min of daylight, December has the longest days of the year in Ruteng.
On the first day of December, sunrise is at 05:29 and sunset at 18:04. On the last day of the month, sunrise is at 05:42 and sunset at 18:19 WITA.

Sunshine

In December, the average sunshine is 10.4h.

UV index

January through June, August through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.