December weather forecast
Petamanan, Indonesia

December, the first month of the summer in Petamanan, is also a moderately hot month, with temperature in the range of an average low of 25.3°C (77.5°F) and an average high of 29.3°C (84.7°F).

Temperature

Entering December, the average high-temperature is recorded at a warm 29.3°C (84.7°F), exhibiting a minimal shift from November's 30.2°C (86.4°F). The December nights show a slight decrease to a mean low-temperature of 25.3°C (77.5°F).

Heat index

December's heat index is calculated to be a sweltering 35°C (95°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. 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 heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Petamanan, in December, it is raining for 26.3 days, with typically 151mm (5.94") of accumulated precipitation. In Petamanan, during the entire year, the rain falls for 241.3 days and collects up to 1225mm (48.23") 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 05:01 and sunset at 17:33. On the last day of the month, sunrise is at 05:14 and sunset at 17:48 WIB.

Sunshine

The average sunshine in December is 8.6h.

UV index

February through June, August through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: An average maximum UV index of 7 in December leads to these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.