December weather forecast
Kalinyamat Wetan, Indonesia

The first month of the summer, December, is also a hot month in Kalinyamat Wetan, Indonesia, with an average temperature ranging between min 25.5°C (77.9°F) and max 30.1°C (86.2°F).

Temperature

As November turns into December, the average high-temperatures rest at a still tropical 30.1°C (86.2°F), showing a minor variation from the prior month. December witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 25.5°C (77.9°F).

Heat index

December's heat index is calculated to be a torrid 37°C (98.6°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in December is 75%.

Rainfall

In Kalinyamat Wetan, Indonesia, in December, during 25.8 rainfall days, 141mm (5.55") of precipitation is typically accumulated. In Kalinyamat Wetan, during the entire year, the rain falls for 233.4 days and collects up to 1073mm (42.24") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:17 and sunset at 17:47. On the last day of December, in Kalinyamat Wetan, sunrise is at 05:31 and sunset at 18:02 WIB.

Sunshine

December has the least sunshine of the year, with an average of 8.2h of sunshine.

UV index

The months with the highest UV index in Kalinyamat Wetan are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 7 during December, leads to the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.