Puerto Iguazú
Argentina
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Puerto Iguazú, Argentina

December, the first month of the summer, in Puerto Iguazú, is a hot month, with average temperature varying between 19.8°C (67.6°F) and 31°C (87.8°F).

Temperature

In Puerto Iguazú, the average high-temperature is relatively the same as in November - a tropical 31°C (87.8°F). The average low-temperature, is 19.8°C (67.6°F).

Heat index

The average heat index is calculated to a very hot 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 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, metabolic differences). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. 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

December is the least humid month, with an average relative humidity of 73%.

Rainfall

In Puerto Iguazú, it is raining for 9 days, with typically 212.2mm (8.4") of accumulated precipitation. Throughout the year, in Puerto Iguazú, Argentina, there are 98.5 rainfall days, and 1899.2mm (74.8") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 13.7h of daylight.

Sunshine

With an average of 6.7h of sunshine, December has the most sunshine of the year in Puerto Iguazú.

What is the temperature in December in Puerto Iguazú?

In December, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 19.8°C (67.6°F). The average heat index (a.k.a. 'feels like', 'real feel'), that factores the actual air temperature with the relative humidity, in December is estimated at 38.5°C (101.3°F).

What is the least humid month in Puerto Iguazú?

December is the least humid month, with an average relative humidity of 73%.

What is the average humidity in December in Puerto Iguazú?

In Puerto Iguazú, the average relative humidity in December is 73%.

How many days does it rain in December in Puerto Iguazú?

In Puerto Iguazú, Argentina, in December, during 9 rainfall days, 212.2mm (8.4") of precipitation is typically accumulated.

When are the longest days in Puerto Iguazú?

With an average of 13.7h of daylight, December has the longest days of the year.

How many hours of daylight does Puerto Iguazú have in December?

The average length of the day in December in Puerto Iguazú, Argentina, is 13.7h.

What month has the most sunshine in Puerto Iguazú?

With an average of 6.7h of sunshine, December has the most sunshine of the year in Puerto Iguazú, Argentina.

How many hours of sunshine does Puerto Iguazú have in December?

The average sunshine in December in Puerto Iguazú is 6.7h.
Average temperature in December - Puerto Iguazú, Argentina
  • Average high temperature in December: 31°C

The warmest month (with the highest average high temperature) is January (31.2°C).
The month with the lowest average high temperature is June (22.1°C).

  • Average low temperature in December: 19.8°C

The month with the highest average low temperature is January (20.9°C).
The coldest month (with the lowest average low temperature) is July (11°C).

Average humidity in December - Puerto Iguazú, Argentina
  • Average humidity in December: 73%

Months with the highest relative humidity are May and June (84%).
The month with the lowest relative humidity is December (73%).

Average rainfall in December - Puerto Iguazú, Argentina
  • Average rainfall in December: 212.2mm

The wettest month (with the highest rainfall) is October (260.9mm).
The driest month (with the lowest rainfall) is August (81.4mm).

Average rainfall days in December - Puerto Iguazú, Argentina
  • Average rainfall days in December: 9 days

The month with the highest number of rainy days is October (11 days).
The month with the lowest number of rainy days is August (6.2 days).

Average daylight in December / Average sunshine in December - Puerto Iguazú, Argentina
  • Average daylight in December: 13.7h

The month with the longest days is December (Average daylight: 13.7h).
The month with shortest days is June (Average daylight: 10.6h).

  • Average sunshine in December: 6.7h

The month with most sunshine is December (Average sunshine: 6.7h).
The month with least sunshine is September (Average sunshine: 3.5h).