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
As Una transitions from November to December, the average high-temperatures adjust to a still warm 28.8°C (83.8°F), nearly the same as the previous 27.7°C (81.9°F). The low-temperature in Una, Brazil, averages to a still moderately hot 23.5°C (74.3°F) during the nights of December.Heat index
During December, the heat index is estimated at a hot 34°C (93.2°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In Una, the average relative humidity in December is 79%.Rainfall
In December, the rain falls for 13.5 days. Throughout December, 40mm (1.57") of precipitation is accumulated. In Una, during the entire year, the rain falls for 181.6 days and collects up to 408mm (16.06") of precipitation.Daylight
December has the longest days of the year, with an average of 13h and 0min of daylight.On the first day of December in Una, sunrise is at 04:56 and sunset at 17:54. On the last day of the month, sunrise is at 05:08 and sunset at 18:10 -03.
Sunshine
In Una, the average sunshine in December is 8.8h.UV index
The months with the highest UV index in Una are January through March, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 7 during December translates into the following recommendations:
Fend off overexposure. Sun protection is vital. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is December in Una?
What is the average humidity in December in Una?
How many days does it rain in December in Una?
When are the longest days in Una?
How many hours of daylight does Una have in December?
What time are sunrise and sunset in December in Una?
How many hours of sunshine does Una have in December?
When is the highest UV index in Una?
What is the UV index intensity in December in Una?
Average temperature in December
Una, Brazil
- Average high temperature in December: 28.8°C
The warmest month (with the highest average high temperature) is March (29.8°C).
The month with the lowest average high temperature is July (25.6°C).
- Average low temperature in December: 23.5°C
The month with the highest average low temperature is January (23.7°C).
The coldest months (with the lowest average low temperature) are July and August (20.3°C).
Average pressure in December
Una, Brazil
- Average pressure in December: 1012.9mbar
The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).
Average wind speed in December
Una, Brazil
- Average wind speed in December: 11.2km/h
The windiest month (with the highest average wind speed) is October (11.8km/h).
The calmest months (with the lowest average wind speed) are February and April (9.3km/h).
Average humidity in December
Una, Brazil
- Average humidity in December: 79%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is February (78%).
Average rainfall in December
Una, Brazil
- Average rainfall in December: 40mm
The wettest month (with the highest rainfall) is April (50mm).
The driest month (with the least rainfall) is September (15mm).
Average rainfall days in December
Una, Brazil
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is April (19.4 days).
The month with the least rainy days is September (10.4 days).
Average daylight in December /
Average sunshine in December
Una, Brazil
- Average daylight in December: 13h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in December: 8h and 5min
The month with the most sunshine is February (Average sunshine: 10h and 36min).
The month with the least sunshine is July (Average sunshine: 6h and 18min).
Average sunshine days in December
Una, Brazil
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is April (7.8 days).
Average UV index in December
Una, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, November and December (UV index 7).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 6).
Average cloud cover in December
Una, Brazil
- Average cloud cover in December: 42
The month with the most cloud cover is November (Cloud cover 49).
The month with the least cloud cover is February (Cloud cover 35).
Average visibility in December
Una, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is April (9km).
