December weather forecast
Jepara, Indonesia

December, the first month of the summer in Jepara, is still a warm month, with an average temperature ranging between min 26.6°C (79.9°F) and max 29.8°C (85.6°F).

Temperature

Jepara transitions into December recording an average high-temperature of a moderately hot 29.8°C (85.6°F), closely aligning with the preceding month's temperature. Jepara's temperature during December nights registers a minor decrease to an average low of 26.6°C (79.9°F).

Heat index

The heat index value for December is computed to be a torrid 36°C (96.8°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Jepara, the average relative humidity in December is 76%.

Rainfall

In Jepara, in December, during 25.9 rainfall days, 146mm (5.75") of precipitation is typically accumulated. In Jepara, during the entire year, the rain falls for 245.1 days and collects up to 1236mm (48.66") 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 05:12 and sunset at 17:40. On the last day of December, sunrise is at 05:25 and sunset at 17:55 WIB.

Sunshine

December has the least sunshine of the year, with an average of 7.8h of sunshine.

UV index

The months with the highest UV index in Jepara are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Jepara, Indonesia, are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 7 in December transforms into the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.