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
In the transition from November to December, Serra do Navio reports an average high-temperature of a still hot 31.7°C (89.1°F), indicating a close resemblance to the prior month. During the month of December, Serra do Navio experiences a steady low-temperature average of 24.3°C (75.7°F).Heat index
For December, the heat index is appraised at a scorching 42°C (107.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.The standards for the heat index are set for locations in shade and under light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In Serra do Navio, the average relative humidity in December is 77%.Rainfall
The month with the most rainfall is December, when the rain falls for 10.6 days and typically aggregates up to 53mm (2.09") of precipitation.Daylight
The month with the shortest days is December, with an average of 12h and 6min of daylight.On the first day of December, sunrise is at 06:15 and sunset at 18:19. On the last day of the month, sunrise is at 06:29 and sunset at 18:33 -03.
Sunshine
The average sunshine in December is 7.6h.UV index
The months with the lowest UV index are April and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the UV index of 6 transforms into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in December?
What is the average humidity in December?
What is the rainiest month?
How many days does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Serra do Navio, Brazil
- Average high temperature in December: 31.7°C
The warmest month (with the highest average high temperature) is October (33.5°C).
The month with the lowest average high temperature is March (29°C).
- Average low temperature in December: 24.3°C
The month with the highest average low temperature is November (24.8°C).
The coldest month (with the lowest average low temperature) is July (23.4°C).
Average pressure in December
Serra do Navio, Brazil
- Average pressure in December: 1009.9mbar
The month with the highest atmospheric pressure is July (1012.8mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).
Average wind speed in December
Serra do Navio, Brazil
- Average wind speed in December: 10.5km/h
The windiest months (with the highest average wind speed) are October and November (11.5km/h).
The calmest month (with the lowest average wind speed) is May (7.5km/h).
Average humidity in December
Serra do Navio, Brazil
- Average humidity in December: 77%
The months with the highest relative humidity are March and April (87%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in December
Serra do Navio, Brazil
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is December (53mm).
The driest months (with the least rainfall) are September and October (6mm).
Average rainfall days in December
Serra do Navio, Brazil
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is October (5.5 days).
Average daylight in December /
Average sunshine in December
Serra do Navio, Brazil
- Average daylight in December: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in December: 7h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is March (Average sunshine: 6h and 0min).
Average sunshine days in December
Serra do Navio, Brazil
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in December
Serra do Navio, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are April and December (UV index 6).
Average cloud cover in December
Serra do Navio, Brazil
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Serra do Navio, Brazil
- Average visibility in December: 10km
The months with the highest visibility are September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April and May (8km).
