December weather forecast
Kasemen, Indonesia

December, the first month of the summer in Kasemen, is still a hot month, with an average temperature fluctuating between 30.4°C (86.7°F) and 25.8°C (78.4°F).

Temperature

The unfolding of December shows an average high-temperature of a still tropical 30.4°C (86.7°F), indicating a slight variance from November's 31.2°C (88.2°F). Maintaining close parity with daytime warmth, the average nocturnal temperature during December stays at a moderately hot 25.8°C (78.4°F).

Heat index

In December, the heat index is evaluated at a sweltering 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in December is 75%.

Rainfall

In Kasemen, Indonesia, in December, during 27.4 rainfall days, 129mm (5.08") of precipitation is typically accumulated. In Kasemen, during the entire year, the rain falls for 273 days and collects up to 1266mm (49.84") 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 December, sunrise is at 05:30 and sunset at 17:57. On the last day of the month, sunrise is at 05:44 and sunset at 18:12 WIB.

Sunshine

The average sunshine in December is 9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Kasemen are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.