December weather forecast
Neópolis, Brazil

December

Weather in December

The first month of the summer, December, is also a hot month in Neópolis, Brazil, with temperature in the range of an average high of 31.2°C (88.2°F) and an average low of 23.4°C (74.1°F).

Temperature

November's transformation into December witnesses an average high-temperature of a still tropical 31.2°C (88.2°F), noting a minor change from the preceding month. Throughout the month of December, the nighttime temperature in Neópolis, Brazil, dips to an average of 23.4°C (74.1°F).

Heat index

The heat index in December is estimated at a torrid 38°C (100.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

With an average relative humidity of 71%, December is the least humid month.

Rainfall

In Neópolis, Brazil, during December, the rain falls for 11.9 days and regularly aggregates up to 21mm (0.83") of precipitation. Throughout the year, there are 222.9 rainfall days, and 509mm (20.04") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 42min of daylight.
On the first day of December, sunrise is at 04:55 and sunset at 17:36. On the last day of the month, sunrise is at 05:08 and sunset at 17:51 -03.

Sunshine

The average sunshine in December is 8.3h.

UV index

The months with the highest UV index are January through March, October through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 7 suggests this advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

How hot is it in Neópolis in December?
Neópolis in December has an average high-temperature of 31.2°C (88.2°F) and an average low-temperature of 23.4°C (74.1°F). In December, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 38°C (100.4°F).
What is the least humid month in Neópolis?
December is the least humid month in Neópolis, with an average relative humidity of 71%.
What is the average humidity in December in Neópolis?
The average relative humidity in December in Neópolis is 71%.
How much does it rain in Neópolis in December?
In December, the rain falls for 11.9 days. Throughout December, 21mm (0.83") of precipitation is accumulated.
When are the longest days in Neópolis?
The month with the longest days is December, with an average of 12h and 42min of daylight.
How many hours of daylight does Neópolis have in December?
The average day length in December in Neópolis is 12h and 43min.
What time are sunrise and sunset in December in Neópolis?
On the first day of December in Neópolis, Brazil, sunrise is at 04:55 and sunset at 17:36. On the last day of the month, sunrise is at 05:08 and sunset at 17:51 -03.
How many hours of sunshine does Neópolis have in December?
In December, the average sunshine duration is 8.3h.
What is the month with the highest UV index in Neópolis?
The months with the highest UV index in Neópolis are January through March, October through December, with an average maximum UV index of 7.
What is the UV index reading in December in Neópolis?
In December, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Neópolis, Brazil
  • Average high temperature in December: 31.2°C

The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (26.6°C).

  • Average low temperature in December: 23.4°C

The month with the highest average low temperature is March (24.4°C).
The coldest month (with the lowest average low temperature) is August (20.8°C).

Average pressure in December
Neópolis, Brazil
  • Average pressure in December: 1012.2mbar

The month with the highest atmospheric pressure is August (1017.3mbar).
The month with the lowest atmospheric pressure is March (1012.1mbar).

Average wind speed in December
Neópolis, Brazil
  • Average wind speed in December: 15.1km/h

The windiest month (with the highest average wind speed) is November (15.5km/h).
The calmest month (with the lowest average wind speed) is May (10km/h).

Average humidity in December
Neópolis, Brazil
  • Average humidity in December: 71%

The months with the highest relative humidity are June and July (83%).
The month with the lowest relative humidity is December (71%).

Average rainfall in December
Neópolis, Brazil
  • Average rainfall in December: 21mm

The wettest month (with the highest rainfall) is July (85mm).
The driest month (with the least rainfall) is November (16mm).

Average rainfall days in December
Neópolis, Brazil
  • Average rainfall days in December: 11.9 days

The month with the highest number of rainy days is July (25.2 days).
The month with the least rainy days is November (11.5 days).

Average daylight in December /
Average sunshine in December
Neópolis, Brazil
  • Average daylight in December: 12h and 4min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).

  • Average sunshine in December: 8h and 2min

The month with the most sunshine is March (Average sunshine: 8h and 24min).
The month with the least sunshine is July (Average sunshine: 7h and 12min).

Average sunshine days in December
Neópolis, Brazil
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is December (13.5 days).
The month with the least sunshine days is August (2 days).

Average UV index in December
Neópolis, Brazil
  • Average UV index in December: 7

The months with the highest UV index are January, February, March, October, November and December (UV index 7).
The months with the lowest UV index are April, May, June, July, August and September (UV index 6).

Average cloud cover in December
Neópolis, Brazil
  • Average cloud cover in December: 34

The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is December (Cloud cover 34).

Average visibility in December
Neópolis, Brazil
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (10km).
The months with the lowest visibility are May and July (9km).

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