December weather forecast
Sidosermo, Indonesia

The first month of the summer, December, is still a hot month in Sidosermo, Indonesia, with an average temperature varying between 31.2°C (88.2°F) and 26.3°C (79.3°F).

Temperature

The advent of December brings an average high-temperature of a still tropical 31.2°C (88.2°F), exhibiting minor difference from the previous month. December in Sidosermo is characterized by a steady nighttime low-temperature of 26.3°C (79.3°F).

Heat index

The average heat index in December is evaluated at a sweltering 39°C (102.2°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Sidosermo, the average relative humidity in December is 74%.

Rainfall

In December, the rain falls for 24.7 days. Throughout December, 102mm (4.02") of precipitation is accumulated. Throughout the year, in Sidosermo, there are 187.8 rainfall days, and 839mm (33.03") of precipitation is accumulated.

Daylight

The month with the longest days in Sidosermo, Indonesia, is December, with an average of 12h and 30min of daylight.
On the first day of December in Sidosermo, sunrise is at 05:02 and sunset at 17:33. On the last day of the month, sunrise is at 05:15 and sunset at 17:48 WIB.

Sunshine

In Sidosermo, Indonesia, the average sunshine in December is 8.6h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Sidosermo. The months with the lowest UV index in Sidosermo are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 7 during December leads to these advisories:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.