December weather forecastPalmas, Brazil
December
Weather in December
The first month of the summer, December, is still a tropical month in Palmas, Brazil, with an average temperature varying between 22.2°C (72°F) and 31.3°C (88.3°F).Temperature
Transitioning into December, Palmas experiences an average high-temperature of a still hot 31.3°C (88.3°F), marking a minor shift from the preceding month. December's average low-temperature reading settles at a pleasant 22.2°C (72°F).Heat index
Throughout December, the heat index is calculated to be a blistering 41°C (105.8°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
In December, the average relative humidity is 78%.Rainfall
In Palmas, in December, it is raining for 25.8 days, with typically 129mm (5.08") of accumulated precipitation. In Palmas, during the entire year, the rain falls for 198 days and collects up to 907mm (35.71") of precipitation.Daylight
With an average of 12h and 42min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:42 and sunset at 18:23. On the last day of December, sunrise is at 05:55 and sunset at 18:37 -03.
Sunshine
The average sunshine in December is 9.3h.UV index
February through May and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 6 during December translates into the following directions:
Shield from overexposure. Defense against sun-related harm is required. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Palmas, Brazil
- Average high temperature in December: 31.3°C
The warmest month (with the highest average high temperature) is September (37.5°C).
The months with the lowest average high temperature are February, March and April (30.3°C).
- Average low temperature in December: 22.2°C
The month with the highest average low temperature is September (24.7°C).
The coldest month (with the lowest average low temperature) is July (20.3°C).
Average pressure in December
Palmas, Brazil
- Average pressure in December: 1010mbar
The months with the highest atmospheric pressure are June and July (1014.1mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed in December
Palmas, Brazil
- Average wind speed in December: 5.3km/h
The windiest months (with the highest average wind speed) are August and September (7.7km/h).
The calmest month (with the lowest average wind speed) is March (4.4km/h).
Average humidity in December
Palmas, Brazil
- Average humidity in December: 78%
The month with the highest relative humidity is March (85%).
The month with the lowest relative humidity is September (34%).
Average rainfall in December
Palmas, Brazil
- Average rainfall in December: 129mm
The wettest month (with the highest rainfall) is March (147mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in December
Palmas, Brazil
- Average rainfall days in December: 25.8 days
The month with the highest number of rainy days is March (28.3 days).
The months with the least rainy days are July and August (0.6 days).
Average daylight in December /
Average sunshine in December
Palmas, Brazil
- Average daylight in December: 12h and 42min
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: 9h and 18min
The month with the most sunshine is October (Average sunshine: 10h and 48min).
The month with the least sunshine is May (Average sunshine: 7h and 18min).
Average sunshine days in December
Palmas, Brazil
- Average sunshine days in December: 4.3 days
The month with the most sunshine days is July (30.4 days).
The month with the least sunshine days is March (1.6 days).
Average UV index in December
Palmas, Brazil
- Average UV index in December: 6
The months with the highest UV index are August and September (UV index 8).
The months with the lowest UV index are February, March, April, May and December (UV index 6).
Average cloud cover in December
Palmas, Brazil
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in December
Palmas, Brazil
- Average visibility in December: 8km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April and December (8km).





