December weather forecast
Jembrana, Indonesia

The first month of the summer, December, is also a moderately hot month in Jembrana, Indonesia, with an average temperature fluctuating between 29.8°C (85.6°F) and 25.3°C (77.5°F).

Temperature

Jembrana experiences a transition to a still moderately hot 29.8°C (85.6°F) in average high-temperatures with the arrival of December, not greatly differing from November's 29.7°C (85.5°F). Jembrana experiences a subtle drop in temperature during the December nights, recording an average of 25.3°C (77.5°F).

Heat index

The heat index value for December is estimated at a sweltering 37°C (98.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The months with the lowest humidity are January, February, October through December, with an average relative humidity of 79%.

Rainfall

In Jembrana, in December, during 22.9 rainfall days, 66mm (2.6") of precipitation is typically accumulated. In Jembrana, during the entire year, the rain falls for 192.9 days and collects up to 539mm (21.22") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 05:53 and sunset at 18:27. On the last day of the month, sunrise is at 06:06 and sunset at 18:42 WITA.

Sunshine

The average sunshine in December is 8.4h.

UV index

January through May, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 in December converts into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.