December weather forecastBrotas, Brazil
December
Weather in December
December, the first month of the summer in Brotas, is also a moderately hot month, with an average temperature fluctuating between 28°C (82.4°F) and 19.5°C (67.1°F).Temperature
Brotas begins December with an average high-temperature of a still warm 28°C (82.4°F), echoing November. An average low-temperature of 19.5°C (67.1°F) is noted during the month of December.Heat index
The heat index for December is evaluated at a tropical 32°C (89.6°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. 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 highly critical to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
In Brotas, Brazil, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 28.8 days. Throughout December, 220mm (8.66") of precipitation is accumulated. In Brotas, during the entire year, the rain falls for 225.9 days and collects up to 1464mm (57.64") of precipitation.Daylight
The month with the longest days is December, with an average of 13h and 30min of daylight.On the first day of December, sunrise is at 05:19 and sunset at 18:43. On the last day of the month, sunrise is at 05:31 and sunset at 18:59 -03.
Sunshine
In December, the average sunshine is 7.6h.UV index
The months with the lowest UV index are January through July, September, November and December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 during December translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Brotas, Brazil
- Average high temperature in December: 28°C
The warmest month (with the highest average high temperature) is October (28.8°C).
The month with the lowest average high temperature is June (22.6°C).
- Average low temperature in December: 19.5°C
The month with the highest average low temperature is December (19.5°C).
The coldest month (with the lowest average low temperature) is June (13.4°C).
Average pressure in December
Brotas, Brazil
- Average pressure in December: 1011.4mbar
The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is December (1011.4mbar).
Average wind speed in December
Brotas, Brazil
- Average wind speed in December: 8.5km/h
The windiest months (with the highest average wind speed) are September and October (10.2km/h).
The calmest month (with the lowest average wind speed) is February (7.4km/h).
Average humidity in December
Brotas, Brazil
- Average humidity in December: 82%
The month with the highest relative humidity is March (87%).
The months with the lowest relative humidity are August and September (64%).
Average rainfall in December
Brotas, Brazil
- Average rainfall in December: 220mm
The wettest month (with the highest rainfall) is January (291mm).
The driest month (with the least rainfall) is July (22mm).
Average rainfall days in December
Brotas, Brazil
- Average rainfall days in December: 28.8 days
The month with the highest number of rainy days is January (29.5 days).
The month with the least rainy days is August (5.7 days).
Average daylight in December /
Average sunshine in December
Brotas, 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 36min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in December
Brotas, Brazil
- Average sunshine days in December: 1.5 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is February (0.6 days).
Average UV index in December
Brotas, Brazil
- Average UV index in December: 5
The months with the highest UV index are August and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, September, November and December (UV index 5).
Average cloud cover in December
Brotas, Brazil
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Brotas, Brazil
- Average visibility in December: 8km
The month with the highest visibility is August (10km).
The months with the lowest visibility are March, April and May (7km).





