December weather forecast and climate
Rurrenabaque, Bolivia

The first month of the summer, December, is still a warm month in Rurrenabaque, Bolivia, with average temperature ranging between max 29.9°C (85.8°F) and min 21°C (69.8°F).

Temperature

In Rurrenabaque, the average high-temperature in December is practically the same as in November - a warm 29.9°C (85.8°F). In Rurrenabaque, the average low-temperature is 21°C (69.8°F).

Heat index

The average heat index in December is computed to be a torrid 38.5°C (101.3°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, wind, pregnancy). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in December is 84%.

Rainfall

The month with the most rainfall in Rurrenabaque is December when the rain falls for 28.1 days and typically aggregates up to 414mm (16.3") of precipitation.

Daylight

December has the longest days of the year, with an average of 13h of daylight.

Sunshine

The average sunshine in Rurrenabaque is 7.1h.

UV index

Months with the highest UV index in Rurrenabaque are January, March, April, June through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in December transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.