December weather forecastRealengo, Brazil
December
Weather in December
The first month of the summer, December, is still a warm month in Realengo, Brazil, with an average temperature varying between 23°C (73.4°F) and 29.1°C (84.4°F).Temperature
Realengo in December witnesses an average high-temperature of a still moderately hot 29.1°C (84.4°F), indicating a slight variation from November's 26.8°C (80.2°F). Realengo's average low-temperature in the month of December is recorded at a still warm 23°C (73.4°F).Heat index
Throughout December, the heat index is computed to be a sweltering 35°C (95°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In December, the average relative humidity is 81%.Rainfall
In Realengo, during December, the rain falls for 18.1 days and regularly aggregates up to 67mm (2.64") of precipitation. Throughout the year, there are 172 rainfall days, and 543mm (21.38") of precipitation is accumulated.Daylight
December has the longest days of the year in Realengo, with an average of 13h and 30min of daylight.On the first day of the month, sunrise is at 04:59 and sunset at 18:26. On the last day of December, sunrise is at 05:11 and sunset at 18:42 -03.
Sunshine
In December, the average sunshine in Realengo is 7.9h.UV index
January and December, with an average maximum UV index of 7, are months with the highest UV index. 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: A typical high UV index of 7 in December suggests the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Realengo, Brazil
- Average high temperature in December: 29.1°C
The warmest month (with the highest average high temperature) is February (30.6°C).
The month with the lowest average high temperature is July (24.5°C).
- Average low temperature in December: 23°C
The month with the highest average low temperature is January (23.3°C).
The coldest month (with the lowest average low temperature) is August (18°C).
Average pressure in December
Realengo, Brazil
- Average pressure in December: 1011.9mbar
The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1011.9mbar).
Average wind speed in December
Realengo, Brazil
- Average wind speed in December: 8.6km/h
The windiest months (with the highest average wind speed) are August and September (10.2km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).
Average humidity in December
Realengo, Brazil
- Average humidity in December: 81%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Realengo, Brazil
- Average rainfall in December: 67mm
The wettest month (with the highest rainfall) is February (75mm).
The driest months (with the least rainfall) are June and August (23mm).
Average rainfall days in December
Realengo, Brazil
- Average rainfall days in December: 18.1 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (9.4 days).
Average daylight in December /
Average sunshine in December
Realengo, Brazil
- Average daylight in December: 13h and 30min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in December: 7h and 54min
The month with the most sunshine is February (Average sunshine: 8h and 36min).
The months with the least sunshine are October and November (Average sunshine: 7h and 12min).
Average sunshine days in December
Realengo, Brazil
- Average sunshine days in December: 8.4 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is March (8.2 days).
Average UV index in December
Realengo, Brazil
- Average UV index in December: 7
The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are February, March, April, May, June, July, August, September, October and November (UV index 6).
Average cloud cover in December
Realengo, 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 31).
Average visibility in December
Realengo, Brazil
- Average visibility in December: 9km
The months with the highest visibility are February, May, June and August (10km).
The months with the lowest visibility are January, March, April, July, September, October, November and December (9km).
