December weather forecast
Cikiruh, Indonesia

December, the first month of the summer in Cikiruh, is still a tropical month, with an average temperature fluctuating between 24.6°C (76.3°F) and 30.4°C (86.7°F).

Temperature

The advent of December presents an average high-temperature of a still tropical 30.4°C (86.7°F), maintaining a close correlation with the preceding month. In the month of December, Cikiruh's average low-temperature falls to a moderately hot 24.6°C (76.3°F).

Heat index

In December, the average heat index is evaluated at a sweltering 38°C (100.4°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In December, the average relative humidity in Cikiruh is 77%.

Rainfall

In December, the rain falls for 27.5 days. Throughout December, 156mm (6.14") of precipitation is accumulated. In Cikiruh, during the entire year, the rain falls for 291.3 days and collects up to 1460mm (57.48") of precipitation.

Sea temperature

In Cikiruh, in December, the average water temperature is 29.2°C (84.6°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:31 and sunset at 18:00. On the last day of the month, sunrise is at 05:44 and sunset at 18:15 WIB.

Sunshine

In December, the average sunshine is 9.1h.

UV index

The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: The UV index of 7 during December translates into the following guidance:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Caution! The mirror effect of sand and water ups the UV radiation strength.