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
Upon the onset of December, Arataca witnesses an average high-temperature of a tropical 30°C (86°F), showing a close resemblance to the prior month. Throughout December, Arataca records an average temperature of 19.9°C (67.8°F) at night.Heat index
In December, the heat index is appraised at a fiery hot 39°C (102.2°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.Heat index details are generally centered around shaded locations and a mild breeze. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Arataca, the average relative humidity in December is 83%.Rainfall
In Arataca, in December, it is raining for 19.7 days, with typically 66mm (2.6") of accumulated precipitation. In Arataca, during the entire year, the rain falls for 238.3 days and collects up to 592mm (23.31") of precipitation.Daylight
December has the longest days of the year, with an average of 13h and 0min of daylight.On the first day of December, sunrise is at 04:57 and sunset at 17:56. On the last day of the month, sunrise is at 05:10 and sunset at 18:11 -03.
Sunshine
The average sunshine in December is 6.6h.UV index
January through May, October through 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 health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during December leads to these advisories:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in December?
What is the average humidity in December?
How many days does it rain in December?
When are the longest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the highest UV index?
What is the UV index reading in December?
Average temperature in December
Arataca, Brazil
- Average high temperature in December: 30°C
The warmest months (with the highest average high temperature) are February and March (30.8°C).
The month with the lowest average high temperature is July (25.8°C).
- Average low temperature in December: 19.9°C
The month with the highest average low temperature is March (20.3°C).
The coldest month (with the lowest average low temperature) is August (16.3°C).
Average pressure in December
Arataca, Brazil
- Average pressure in December: 1012.9mbar
The month with the highest atmospheric pressure is July (1019.7mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).
Average wind speed in December
Arataca, Brazil
- Average wind speed in December: 5.4km/h
The windiest months (with the highest average wind speed) are September and October (5.7km/h).
The calmest months (with the lowest average wind speed) are March and April (4.8km/h).
Average humidity in December
Arataca, Brazil
- Average humidity in December: 83%
The months with the highest relative humidity are June and July (88%).
The month with the lowest relative humidity is February (82%).
Average rainfall in December
Arataca, Brazil
- Average rainfall in December: 66mm
The wettest month (with the highest rainfall) is November (81mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in December
Arataca, Brazil
- Average rainfall days in December: 19.7 days
The month with the highest number of rainy days is October (23.4 days).
The month with the least rainy days is February (16.4 days).
Average daylight in December /
Average sunshine in December
Arataca, Brazil
- Average daylight in December: 13h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in December: 6h and 4min
The months with the most sunshine are January and February (Average sunshine: 7h and 48min).
The months with the least sunshine are May and November (Average sunshine: 4h and 36min).
Average sunshine days in December
Arataca, Brazil
- Average sunshine days in December: 7.8 days
The month with the most sunshine days is March (11.2 days).
The month with the least sunshine days is July (3.5 days).
Average UV index in December
Arataca, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 6).
The months with the lowest UV index are June, July, August and September (UV index 5).
Average cloud cover in December
Arataca, Brazil
- Average cloud cover in December: 69
The month with the most cloud cover is May (Cloud cover 74).
The month with the least cloud cover is February (Cloud cover 65).
Average visibility in December
Arataca, Brazil
- Average visibility in December: 6km
The months with the highest visibility are January, February, March, August, September, October, November and December (6km).
The months with the lowest visibility are April, May, June and July (5km).
