December weather forecast
Sarwadadi, Indonesia

December, the first month of the summer in Sarwadadi, is still a hot month, with temperature in the range of an average low of 25.2°C (77.4°F) and an average high of 30.2°C (86.4°F).

Temperature

December brings an average high-temperature of a still hot 30.2°C (86.4°F), nearly identical to the preceding month. A slight dip in temperature to a warm 25.2°C (77.4°F) marks the average nights during December.

Heat index

Throughout December, the heat index is computed to be a very hot 37°C (98.6°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in December is 76%.

Rainfall

In December, the rain falls for 27.5 days. Throughout December, 172mm (6.77") of precipitation is accumulated. In Sarwadadi, during the entire year, the rain falls for 244.1 days and collects up to 1214mm (47.8") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:20 and sunset at 17:49. On the last day of December, sunrise is at 05:33 and sunset at 18:04 WIB.

Sunshine

December has the least sunshine of the year, with an average of 8.4h of sunshine.

UV index

The months with the highest UV index 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 of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 7 during December translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.