December weather forecastMariscal Castilla, Peru

Weather in December

December, the first month of the summer in Mariscal Castilla, is also a moderately hot month, with temperature in the range of an average low of 20°C (68°F) and an average high of 29.7°C (85.5°F).

Temperature

In December, Mariscal Castilla's weather conditions record an average high-temperature of a warm 29.7°C (85.5°F), demonstrating little divergence from the preceding month. During December, Mariscal Castilla's temperature averages to a pleasant 20°C (68°F) at night.

Heat index

In December, the average heat index is estimated at a very hot 36°C (96.8°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Exposure to unobstructed sunshine could lead to an increase in the heat index 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. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. 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 children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in December is 78%.

Rainfall

In Mariscal Castilla, during December, the rain falls for 22.2 days and regularly aggregates up to 92mm (3.62") of precipitation. In Mariscal Castilla, during the entire year, the rain falls for 246.6 days and collects up to 1162mm (45.75") 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 December, sunrise is at 05:39 and sunset at 18:09. On the last day of the month, sunrise is at 05:52 and sunset at 18:23 -05.

Sunshine

In Mariscal Castilla, the average sunshine in December is 9.1h.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index. January through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 6 in December transforms into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.