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
Galvão, Brazil, records an average high-temperature of a still moderately hot 27.5°C (81.5°F) as December arrives, nearly mirroring the previous month's climate. December nights are marked by an average low-temperature of 17.2°C (63°F).Heat index
Throughout December, the heat index is estimated at a hot 31°C (87.8°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The average relative humidity in December is 81%.Rainfall
In December, the rain falls for 19.2 days. Throughout December, 101mm (3.98") of precipitation is accumulated. In Galvão, during the entire year, the rain falls for 187 days and collects up to 1107mm (43.58") of precipitation.Daylight
The month with the longest days in Galvão is December, with an average of 13h and 48min of daylight.On the first day of December, sunrise is at 05:29 and sunset at 19:10. On the last day of the month, sunrise is at 05:40 and sunset at 19:27 -03.
Sunshine
In Galvão, Brazil, the average sunshine in December is 8.3h.UV index
January, November and December, with an average maximum UV index of 6, are months with the highest UV index in Galvão. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 6 in December leads to these recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Galvão in December?
What is the average humidity in December in Galvão?
How many days does it rain in December in Galvão?
When are the longest days in Galvão?
What is the average length of the day in December in Galvão?
What time are sunrise and sunset in December in Galvão?
How long on average sun shines in December in Galvão?
When is the highest UV index in Galvão?
What is the UV index reading in December in Galvão?
Average temperature in December
Galvão, Brazil
- Average high temperature in December: 27.5°C
The warmest month (with the highest average high temperature) is January (27.8°C).
The month with the lowest average high temperature is June (18.8°C).
- Average low temperature in December: 17.2°C
The month with the highest average low temperature is January (17.8°C).
The coldest month (with the lowest average low temperature) is July (10.3°C).
Average pressure in December
Galvão, Brazil
- Average pressure in December: 1010.8mbar
The month with the highest atmospheric pressure is July (1019.3mbar).
The month with the lowest atmospheric pressure is December (1010.8mbar).
Average wind speed in December
Galvão, Brazil
- Average wind speed in December: 9km/h
The windiest month (with the highest average wind speed) is August (10.1km/h).
The calmest month (with the lowest average wind speed) is March (8.6km/h).
Average humidity in December
Galvão, Brazil
- Average humidity in December: 81%
The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is September (77%).
Average rainfall in December
Galvão, Brazil
- Average rainfall in December: 101mm
The wettest month (with the highest rainfall) is May (131mm).
The driest month (with the least rainfall) is August (67mm).
Average rainfall days in December
Galvão, Brazil
- Average rainfall days in December: 19.2 days
The month with the highest number of rainy days is January (19.8 days).
The month with the least rainy days is August (11.2 days).
Average daylight in December /
Average sunshine in December
Galvão, Brazil
- Average daylight in December: 13h and 5min
The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in December: 8h and 2min
The months with the most sunshine are April and November (Average sunshine: 8h and 36min).
The month with the least sunshine is May (Average sunshine: 7h and 18min).
Average sunshine days in December
Galvão, Brazil
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is February (8.9 days).
Average UV index in December
Galvão, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, November and December (UV index 6).
The months with the lowest UV index are April, May and June (UV index 4).
Average cloud cover in December
Galvão, Brazil
- Average cloud cover in December: 43
The months with the most cloud cover are February and May (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Galvão, Brazil
- Average visibility in December: 8km
The month with the highest visibility is August (9km).
The months with the lowest visibility are January and May (7km).
