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
Weather in December
Temperature
December, marked by an average high-temperature of 28.7°C (83.7°F) and a low-temperature of 18.8°C (65.8°F), is the warmest month.Heat index
The heat index for December is calculated to be a torrid 35°C (95°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Keep in mind the heat index values are meant for areas in shade and with light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
In December, the average relative humidity is 83%.Rainfall
In Japira, during December, the rain falls for 26.1 days and regularly aggregates up to 156mm (6.14") of precipitation. Throughout the year, there are 203.9 rainfall days, and 1255mm (49.41") of precipitation is accumulated.Daylight
With an average of 13h and 36min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:24 and sunset at 18:54. On the last day of December, in Japira, Brazil, sunrise is at 05:36 and sunset at 19:11 -03.
Sunshine
In December, the average sunshine in Japira is 7.6h.UV index
In Japira, the average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 5 in December translates into the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the warmest month in Japira?
How hot is it in Japira in December?
What is the average humidity in December in Japira?
How many days does it rain in December in Japira?
When are the longest days in Japira?
How many hours of daylight does Japira have in December?
When is the sunrise / sunset in December in Japira?
How many hours of sunshine does Japira have in December?
How high is the UV index in December in Japira?
Average temperature in December
Japira, Brazil
- Average high temperature in December: 28.7°C
The warmest month (with the highest average high temperature) is December (28.7°C).
The month with the lowest average high temperature is June (21.8°C).
- Average low temperature in December: 18.8°C
The month with the highest average low temperature is January (19.2°C).
The coldest months (with the lowest average low temperature) are June and July (13.1°C).
Average pressure in December
Japira, Brazil
- Average pressure in December: 1011.1mbar
The month with the highest atmospheric pressure is July (1019.3mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).
Average wind speed in December
Japira, Brazil
- Average wind speed in December: 8.5km/h
The windiest month (with the highest average wind speed) is September (10.2km/h).
The calmest month (with the lowest average wind speed) is February (7.7km/h).
Average humidity in December
Japira, Brazil
- Average humidity in December: 83%
The months with the highest relative humidity are February and March (87%).
The month with the lowest relative humidity is September (69%).
Average rainfall in December
Japira, Brazil
- Average rainfall in December: 156mm
The wettest month (with the highest rainfall) is January (226mm).
The driest month (with the least rainfall) is August (32mm).
Average rainfall days in December
Japira, Brazil
- Average rainfall days in December: 26.1 days
The month with the highest number of rainy days is January (27.3 days).
The month with the least rainy days is August (7.2 days).
Average daylight in December /
Average sunshine in December
Japira, Brazil
- Average daylight in December: 13h and 4min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in December: 7h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 54min).
Average sunshine days in December
Japira, Brazil
- Average sunshine days in December: 4 days
The month with the most sunshine days is August (22.5 days).
The month with the least sunshine days is February (2.1 days).
Average UV index in December
Japira, Brazil
- Average UV index in December: 5
The months with the highest UV index are January, March, October and November (UV index 6).
The month with the lowest UV index is May (UV index 4).
Average cloud cover in December
Japira, Brazil
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Japira, Brazil
- Average visibility in December: 8km
The months with the highest visibility are July, August, September and October (9km).
The months with the lowest visibility are January, February, March, April and May (7km).
Japira, Brazil
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