Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The arrival of December brings an average high-temperature of a still warm 29.5°C (85.1°F), subtly diverging from November's 29.1°C (84.4°F). Throughout December, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 24.5°C (76.1°F).Heat index
The heat index for December is computed to be a fiery hot 35°C (95°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
January through March, November and December, with an average relative humidity of 74%, are the least humid months.Rainfall
The month with the least rainfall is December, when the rain falls for 9.9 days and typically collects 14mm (0.55") 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 December, sunrise is at 04:53 and sunset at 17:34. On the last day of the month, sunrise is at 05:06 and sunset at 17:49 -03.
Sunshine
The average sunshine in December is 8.4h.UV index
January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 7 in December converts into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is December?
What are the least humid months?
What is the average humidity in December in Feliz Deserto?
What is the driest month?
How many days does it rain in December?
When are the longest days in Feliz Deserto?
How many hours of daylight does Feliz Deserto have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the highest UV index?
What is the UV index reading in December?
Average temperature in December
Feliz Deserto, Brazil
- Average high temperature in December: 29.5°C
The warmest month (with the highest average high temperature) is March (30.4°C).
The month with the lowest average high temperature is July (26.2°C).
- Average low temperature in December: 24.5°C
The month with the highest average low temperature is March (25.2°C).
The coldest month (with the lowest average low temperature) is August (22.3°C).
Average pressure in December
Feliz Deserto, Brazil
- Average pressure in December: 1012.4mbar
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
Feliz Deserto, Brazil
- Average wind speed in December: 18km/h
The windiest month (with the highest average wind speed) is November (18.6km/h).
The calmest month (with the lowest average wind speed) is May (12.7km/h).
Average humidity in December
Feliz Deserto, Brazil
- Average humidity in December: 74%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are January, February, March, November and December (74%).
Average rainfall in December
Feliz Deserto, Brazil
- Average rainfall in December: 14mm
The wettest month (with the highest rainfall) is June (80mm).
The driest month (with the least rainfall) is December (14mm).
Average rainfall days in December
Feliz Deserto, Brazil
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is December (9.9 days).
Average daylight in December /
Average sunshine in December
Feliz Deserto, 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 months with the most sunshine are February and March (Average sunshine: 8h and 30min).
The month with the least sunshine is July (Average sunshine: 7h and 36min).
Average sunshine days in December
Feliz Deserto, Brazil
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is December (15.2 days).
The month with the least sunshine days is June (4.7 days).
Average UV index in December
Feliz Deserto, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 6).
Average cloud cover in December
Feliz Deserto, Brazil
- Average cloud cover in December: 35
The month with the most cloud cover is July (Cloud cover 46).
The months with the least cloud cover are March and December (Cloud cover 35).
Average visibility in December
Feliz Deserto, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
