December weather forecast
Iquitos, Peru

Breaking up November's trend, December brings forth lesser temperature fluctuations with greater rainfall of 173mm (6.81"). The weather remains tropical, with stable humidity, daylight, and sunshine hours building up to a heart-warming festive season. Winds blow at their familiar speeds, ensuring a smooth transition as the year comes to an end. All in all, December's weather in Iquitos perfectly wraps up a year of flourishing tropical climate.

Temperature

The arrival of December in Iquitos brings an average high-temperature of a still tropical 30.1°C (86.2°F), subtly diverging from November's 31.8°C (89.2°F). December nights in Iquitos are marked by an average temperature drop to a pleasant 22.2°C (72°F).

Heat index

The heat index in December is calculated to be a blisteringly hot 40°C (104°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In December, the average relative humidity is 87%.

Rainfall

In December, the rain falls for 26 days. Throughout December, 173mm (6.81") of precipitation is accumulated. In Iquitos, during the entire year, the rain falls for 293.9 days and collects up to 1530mm (60.24") of precipitation.

Daylight

With an average of 12h and 18min of daylight, December has the longest days of the year in Iquitos.
On the first day of the month, sunrise is at 05:32 and sunset at 17:52. On the last day of December, in Iquitos, Peru, sunrise is at 05:46 and sunset at 18:06 -05.

Sunshine

The average sunshine in December is 6.6h.

UV index

The months with the lowest UV index in Iquitos are January through July, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.