December weather forecastMachacalis, Brazil
December
Weather in December
December, the first month of the summer in Machacalis, is still a warm month, with an average temperature ranging between min 20.5°C (68.9°F) and max 29.6°C (85.3°F).Temperature
Machacalis starts December with an average high-temperature of a still moderately hot 29.6°C (85.3°F), hinting at a minimal fluctuation from November. December brings Machacalis a consistent average low-temperature of 20.5°C (68.9°F).Heat index
During December, the heat index is calculated to be a sweltering 37°C (98.6°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In December, the average relative humidity in Machacalis is 83%.Rainfall
December is the month with the most rainfall in Machacalis. Rain falls for 23.9 days and accumulates 148mm (5.83") of precipitation.Daylight
With an average of 13h and 6min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 04:59 and sunset at 18:04. On the last day of December, in Machacalis, sunrise is at 05:12 and sunset at 18:20 -03.
Sunshine
The average sunshine in December in Machacalis is 7.4h.UV index
January through June, August through December, with an average maximum UV index of 6, are months with the highest UV index in Machacalis. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 6 in December transforms into this advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Machacalis, Brazil
- Average high temperature in December: 29.6°C
The warmest month (with the highest average high temperature) is February (30.9°C).
The month with the lowest average high temperature is July (25.8°C).
- Average low temperature in December: 20.5°C
The months with the highest average low temperature are January, February and March (20.6°C).
The coldest month (with the lowest average low temperature) is July (16.8°C).
Average pressure in December
Machacalis, Brazil
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).
Average wind speed in December
Machacalis, Brazil
- Average wind speed in December: 8.7km/h
The windiest month (with the highest average wind speed) is October (10.5km/h).
The calmest month (with the lowest average wind speed) is May (7.2km/h).
Average humidity in December
Machacalis, Brazil
- Average humidity in December: 83%
The month with the highest relative humidity is April (85%).
The month with the lowest relative humidity is September (74%).
Average rainfall in December
Machacalis, Brazil
- Average rainfall in December: 148mm
The wettest month (with the highest rainfall) is December (148mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days in December
Machacalis, Brazil
- Average rainfall days in December: 23.9 days
The month with the highest number of rainy days is December (23.9 days).
The month with the least rainy days is September (13.8 days).
Average daylight in December /
Average sunshine in December
Machacalis, Brazil
- Average daylight in December: 13h and 6min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in December: 7h and 24min
The month with the most sunshine is February (Average sunshine: 8h and 24min).
The month with the least sunshine is October (Average sunshine: 6h and 36min).
Average sunshine days in December
Machacalis, Brazil
- Average sunshine days in December: 5.7 days
The month with the most sunshine days is September (12.2 days).
The month with the least sunshine days is November (5.1 days).
Average UV index in December
Machacalis, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, August, September, October, November and December (UV index 6).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in December
Machacalis, Brazil
- Average cloud cover in December: 56
The months with the most cloud cover are April and November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 46).
Average visibility in December
Machacalis, Brazil
- Average visibility in December: 7km
The month with the highest visibility is September (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, November and December (7km).
