December weather forecastGuidoval, Brazil
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Guidoval, Brazil, with an average temperature ranging between max 27°C (80.6°F) and min 19°C (66.2°F).Temperature
The shift into December records an average high-temperature of a still moderately hot 27°C (80.6°F), subtly varied from November's 25.9°C (78.6°F). An average low-temperature of 19°C (66.2°F) is noted during the nights in December.Heat index
December's mean heat index is evaluated at a tropical 31°C (87.8°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.The standards for the heat index are set for locations in shade and under light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
The average relative humidity in December in Guidoval is 88%.Rainfall
December is the month with the most rainfall. Rain falls for 28.5 days and accumulates 231mm (9.09") of precipitation.Daylight
With an average of 13h and 24min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:00 and sunset at 18:20. On the last day of December, sunrise is at 05:12 and sunset at 18:36 -03.
Sunshine
The average sunshine in December in Guidoval is 6.9h.UV index
January, August and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guidoval, Brazil
- Average high temperature in December: 27°C
The warmest month (with the highest average high temperature) is February (27.6°C).
The month with the lowest average high temperature is June (22.6°C).
- Average low temperature in December: 19°C
The month with the highest average low temperature is December (19°C).
The coldest month (with the lowest average low temperature) is July (13.6°C).
Average pressure in December
Guidoval, Brazil
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is July (1021.1mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).
Average wind speed in December
Guidoval, Brazil
- Average wind speed in December: 7.3km/h
The windiest month (with the highest average wind speed) is September (8.4km/h).
The calmest month (with the lowest average wind speed) is April (5.9km/h).
Average humidity in December
Guidoval, Brazil
- Average humidity in December: 88%
The months with the highest relative humidity are March and April (90%).
The month with the lowest relative humidity is September (74%).
Average rainfall in December
Guidoval, Brazil
- Average rainfall in December: 231mm
The wettest month (with the highest rainfall) is December (231mm).
The driest month (with the least rainfall) is July (16mm).
Average rainfall days in December
Guidoval, Brazil
- Average rainfall days in December: 28.5 days
The month with the highest number of rainy days is December (28.5 days).
The month with the least rainy days is August (9.4 days).
Average daylight in December /
Average sunshine in December
Guidoval, Brazil
- Average daylight in December: 13h and 24min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in December: 6h and 54min
The month with the most sunshine is September (Average sunshine: 8h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in December
Guidoval, Brazil
- Average sunshine days in December: 1.1 days
The months with the most sunshine days are July and August (16.3 days).
The month with the least sunshine days is December (1.1 days).
Average UV index in December
Guidoval, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, August and December (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, September, October and November (UV index 5).
Average cloud cover in December
Guidoval, Brazil
- Average cloud cover in December: 62
The month with the most cloud cover is November (Cloud cover 66).
The month with the least cloud cover is September (Cloud cover 38).
Average visibility in December
Guidoval, Brazil
- Average visibility in December: 7km
The month with the highest visibility is September (9km).
The months with the lowest visibility are March, April and May (6km).
