Cataratas del Iguazú
Argentina
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Cataratas del Iguazú, Argentina

December, the first month of the summer, in Cataratas del Iguazú, is also a hot month, with average temperature fluctuating between 18.6°C (65.5°F) and 32.6°C (90.7°F).

Temperature

In Cataratas del Iguazú, the average high-temperature in December is essentially the same as in November - a still hot 32.6°C (90.7°F). In December, the average low-temperature is 18.6°C (65.5°F).

Humidity

The least humid month is December, with an average relative humidity of 74%.

Rainfall

In Cataratas del Iguazú, in December, it is raining for 9 days, with typically 189mm (7.4") of accumulated precipitation. Throughout the year, there are 95 rainfall days, and 1868.7mm (73.6") of precipitation is accumulated.

Daylight

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

Sunshine

In December, the average sunshine in Cataratas del Iguazú, Argentina, is 7.5h.

UV index

Months with the highest UV index are January, February, November and December, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from the exposure to the Sun's UV rays for average individuals.
In December, the average maximum UV index of 12 translate into the following recommendations:
Take all necessary precautions, as unprotected skin can burn in 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the temperature in December in Cataratas del Iguazú?

The average high-temperature, in December, is 32.6°C (90.7°F), while the average low-temperature is 18.6°C (65.5°F).

What is the least humid month in Cataratas del Iguazú?

With an average relative humidity of 74%, December is the least humid month in Cataratas del Iguazú.

What is the average humidity in December in Cataratas del Iguazú?

In Cataratas del Iguazú, Argentina, the average relative humidity in December is 74%.

How much does it rain in Cataratas del Iguazú in December?

In Cataratas del Iguazú, in December, it is raining for 9 days, with typically 189mm (7.4") of accumulated precipitation.

When are the longest days in Cataratas del Iguazú?

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

How many hours of daylight does Cataratas del Iguazú have in December?

The average length of the day in December is 13.7h.

How long on average sun shines in December in Cataratas del Iguazú?

In December, the average sunshine in Cataratas del Iguazú, Argentina, is 7.5h.

What is the month with the highest UV index in Cataratas del Iguazú?

January, February, November and December, with an average maximum UV index of 12, are months with the highest UV index in Cataratas del Iguazú.

How high is the UV index in December in Cataratas del Iguazú?

The average daily maximum UV index in December in Cataratas del Iguazú, Argentina, is 12. A UV Index of 11, and more, symbolizes an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in December - Cataratas del Iguazú, Argentina
  • Average high temperature in December: 32.6°C

The warmest month (with the highest average high temperature) is January (33°C).
The month with the lowest average high temperature is June (23.1°C).

  • Average low temperature in December: 18.6°C

The month with the highest average low temperature is February (20°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).

Average humidity in December - Cataratas del Iguazú, Argentina
  • Average humidity in December: 74%

The month with the highest relative humidity is May (86%).
The month with the lowest relative humidity is December (74%).

Average rainfall in December - Cataratas del Iguazú, Argentina
  • Average rainfall in December: 189mm

The wettest month (with the highest rainfall) is October (219.8mm).
The driest month (with the lowest rainfall) is July (84.4mm).

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

Months with the highest number of rainy days are January, February, October and December (9 days).
Months with the lowest number of rainy days are May and July (6 days).

Average daylight in December / Average sunshine in December - Cataratas del 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: 7.5h

The month with most sunshine is November (Average sunshine: 7.7h).
The month with least sunshine is September (Average sunshine: 4.9h).

Average UV index in December - Cataratas del Iguazú, Argentina
  • Average UV index in December: 12

Months with the highest UV index are January, February, November and December (UV index 12).
The month with the lowest UV index is June (UV index 4).