December weather forecast and climate
Las Mercedes, Paraguay

Weather in December

The first month of the summer, December, is also a hot month in Las Mercedes, Paraguay, with average temperature varying between 23.1°C (73.6°F) and 34.3°C (93.7°F).

Temperature

In December, the average high-temperature is relatively the same as in November - a still tropical 34.3°C (93.7°F). In Las Mercedes, the average low-temperature is 23.1°C (73.6°F).

Heat index

In December, the average heat index is evaluated at a blistering 43.9°C (111°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, wind, clothing), and activity. 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. 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

In December, the average relative humidity is 62%.

Rainfall

December is the month with the most rainfall in Las Mercedes, Paraguay. Rain falls for 15.3 days and accumulates 84mm (3.31") of precipitation.

Daylight

The month with the longest days in Las Mercedes is December, with an average of 13.4h of daylight.

Sunshine

In Las Mercedes, the average sunshine is 8.3h.

UV index

The average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in December in Las Mercedes?

In December, the average high-temperature is 34.3°C (93.7°F), and the average low-temperature is 23.1°C (73.6°F). In December, the average heat index (a.k.a. 'apparent temperature', 'real feel'), that factores the actual air temperature with the relative humidity, is estimated at 43.9°C (111°F).

What is the average humidity in December in Las Mercedes?

The average relative humidity in December is 62%.

How much does it rain in Las Mercedes in December?

In December, in Las Mercedes, the rain falls for 15.3 days. Throughout December, 84mm (3.31") of precipitation is accumulated.

What is the wettest month in Las Mercedes?

December is the month with the most rainfall in Las Mercedes. Rain falls for 15.3 days and accumulates 84mm (3.31") of precipitation.

When are the longest days in Las Mercedes?

The month with the longest days is December, with an average of 13.4h of daylight.

How many hours of daylight does Las Mercedes have in December?

In December, the average length of the day in Las Mercedes, Paraguay, is 13.4h.

How long on average sun shines in December in Las Mercedes?

In December, the average sunshine is 8.3h.

What is the UV index intensity in December in Las Mercedes?

In Las Mercedes, the average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in December
Las Mercedes, Paraguay

Average temperature in December - Las Mercedes, Paraguay
  • Average high temperature in December: 34.3°C

The warmest month (with the highest average high temperature) is January (34.6°C).
The month with the lowest average high temperature is June (22.7°C).

  • Average low temperature in December: 23.1°C

The month with the highest average low temperature is February (23.2°C).
The coldest month (with the lowest average low temperature) is July (13.2°C).

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Average pressure in December
Las Mercedes, Paraguay

Average pressure in December - Las Mercedes, Paraguay
  • Average pressure in December: 1006.4mbar

The month with the highest atmospheric pressure is July (1015.9mbar).
The month with the lowest atmospheric pressure is December (1006.4mbar).

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Average wind speed in December
Las Mercedes, Paraguay

Average wind speed in December - Las Mercedes, Paraguay
  • Average wind speed in December: 11.6km/h

The windiest month (with the highest average wind speed) is October (13km/h).
The calmest months (with the lowest average wind speed) are March and April (9.4km/h).

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Average humidity in December
Las Mercedes, Paraguay

Average humidity in December - Las Mercedes, Paraguay
  • Average humidity in December: 62%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is September (48%).

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Average rainfall in December
Las Mercedes, Paraguay

Average rainfall in December - Las Mercedes, Paraguay
  • Average rainfall in December: 84mm

The wettest month (with the highest rainfall) is December (84mm).
The driest month (with the least rainfall) is August (3mm).

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Average rainfall days in December
Las Mercedes, Paraguay

Average rainfall days in December - Las Mercedes, Paraguay
  • Average rainfall days in December: 15.3 days

The month with the highest number of rainy days is December (15.3 days).
The month with the least rainy days is August (1.5 days).

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Average daylight in December /
Average sunshine in December
Las Mercedes, Paraguay

Average daylight in December / Average sunshine in December - Las Mercedes, Paraguay
  • Average daylight in December: 13.4h

The month with the longest days is December (Average daylight: 13.4h).
The month with the shortest days is June (Average daylight: 10.8h).

  • Average sunshine in December: 8.3h

The month with the most sunshine is September (Average sunshine: 9h).
The month with the least sunshine is May (Average sunshine: 6.4h).

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Average sunshine days in December
Las Mercedes, Paraguay

Average sunshine days in December - Las Mercedes, Paraguay
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (13.7 days).

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Average UV index in December
Las Mercedes, Paraguay

Average UV index in December - Las Mercedes, Paraguay
  • Average UV index in December: 7

The month with the highest UV index is January (UV index 8).
The month with the lowest UV index is May (UV index 4).

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Average cloud cover in December
Las Mercedes, Paraguay

Average cloud cover in December - Las Mercedes, Paraguay
  • Average cloud cover in December: 35

The month with the most cloud cover is May (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 18).

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Average visibility in December
Las Mercedes, Paraguay

Average visibility in December - Las Mercedes, Paraguay
  • Average visibility in December: 10km

Months with the highest visibility are August, September, October, November and December (10km).
Months with the lowest visibility are April and May (8km).

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