December weather forecastSerra, Brazil
December
Weather in December
December, the first month of the summer in Serra, is also a moderately hot month, with an average temperature fluctuating between 27.5°C (81.5°F) and 22°C (71.6°F).Temperature
December brings a marginal elevation to a still warm 27.5°C (81.5°F) from November's 26.3°C (79.3°F) in Serra's average high-temperatures. In Serra, December nights witness a steady temperature drop to an agreeable 22°C (71.6°F).Heat index
In December, the average heat index is computed to be a hot 31°C (87.8°F). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
November and December, with an average relative humidity of 84%, are the most humid months.Rainfall
In Serra, in December, during 22 rainfall days, 145mm (5.71") of precipitation is typically accumulated. In Serra, during the entire year, the rain falls for 203 days and collects up to 871mm (34.29") of precipitation.Daylight
December has the longest days of the year in Serra, with an average of 13h and 18min of daylight.On the first day of December in Serra, sunrise is at 04:52 and sunset at 18:08. On the last day of the month, sunrise is at 05:04 and sunset at 18:24 -03.
Sunshine
The average sunshine in December is 8.7h.UV index
In December, the average daily maximum UV index in Serra is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 6 during December morphs into the following directions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. 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
Average temperature in December
Serra, Brazil
- Average high temperature in December: 27.5°C
The warmest month (with the highest average high temperature) is February (28.8°C).
The month with the lowest average high temperature is July (24.1°C).
- Average low temperature in December: 22°C
The months with the highest average low temperature are January and February (22.3°C).
The coldest month (with the lowest average low temperature) is August (18°C).
Average pressure in December
Serra, Brazil
- Average pressure in December: 1012.7mbar
The month with the highest atmospheric pressure is July (1020.8mbar).
The month with the lowest atmospheric pressure is December (1012.7mbar).
Average wind speed in December
Serra, Brazil
- Average wind speed in December: 13km/h
The windiest month (with the highest average wind speed) is September (14.3km/h).
The calmest month (with the lowest average wind speed) is April (10.3km/h).
Average humidity in December
Serra, Brazil
- Average humidity in December: 84%
The months with the highest relative humidity are November and December (84%).
The month with the lowest relative humidity is August (79%).
Average rainfall in December
Serra, Brazil
- Average rainfall in December: 145mm
The wettest month (with the highest rainfall) is November (180mm).
The driest month (with the least rainfall) is July (30mm).
Average rainfall days in December
Serra, Brazil
- Average rainfall days in December: 22 days
The month with the highest number of rainy days is November (22.7 days).
The months with the least rainy days are May and June (12.8 days).
Average daylight in December /
Average sunshine in December
Serra, Brazil
- Average daylight in December: 13h and 18min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in December: 8h and 42min
The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).
Average sunshine days in December
Serra, Brazil
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4.3 days).
Average UV index in December
Serra, Brazil
- Average UV index in December: 6
The month with the highest UV index is February (UV index 7).
The months with the lowest UV index are July and September (UV index 5).
Average cloud cover in December
Serra, Brazil
- Average cloud cover in December: 46
The month with the most cloud cover is November (Cloud cover 53).
The month with the least cloud cover is February (Cloud cover 31).
Average visibility in December
Serra, Brazil
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are November and December (9km).
