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
Alto Santo notes an average high-temperature of a tropical 34.9°C (94.8°F) in December, displaying minor variation from November. During the month of December, the nighttime temperature falls to an average of 24.5°C (76.1°F).Heat index
December's average heat index is appraised at a burning hot 45°C (113°F). Remain cautious: Heat cramps along with heat exhaustion are foreseeable. Ongoing activity may precipitate heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. 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 natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In December, the average relative humidity in Alto Santo is 60%.Rainfall
In December, the rain falls for 6.3 days. Throughout December, 11mm (0.43") of precipitation is accumulated. Throughout the year, there are 127 rainfall days, and 344mm (13.54") of precipitation is accumulated.Daylight
The month with the longest days in Alto Santo, Brazil, is December, with an average of 12h and 24min of daylight.On the first day of the month, sunrise is at 05:09 and sunset at 17:34. On the last day of December, sunrise is at 05:23 and sunset at 17:49 -03.
Sunshine
In Alto Santo, the average sunshine in December is 8.6h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 7 in December transforms into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
How hot does it get in Alto Santo in December?
What is the average humidity in December in Alto Santo?
How many days does it rain in December in Alto Santo?
When are the longest days in Alto Santo?
How many hours of daylight does Alto Santo have in December?
What time are sunrise and sunset in December in Alto Santo?
How many hours of sunshine does Alto Santo have in December?
What is the month with the highest UV index in Alto Santo?
When is the lowest UV index in Alto Santo?
What is the UV index reading in December in Alto Santo?
Average temperature in December
Alto Santo, Brazil
- Average high temperature in December: 34.9°C
The warmest month (with the highest average high temperature) is October (36°C).
The month with the lowest average high temperature is June (32°C).
- Average low temperature in December: 24.5°C
The month with the highest average low temperature is December (24.5°C).
The coldest months (with the lowest average low temperature) are July and August (21.6°C).
Average pressure in December
Alto Santo, Brazil
- Average pressure in December: 1010.6mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in December
Alto Santo, Brazil
- Average wind speed in December: 17.4km/h
The windiest month (with the highest average wind speed) is October (18.7km/h).
The calmest month (with the lowest average wind speed) is April (11.3km/h).
Average humidity in December
Alto Santo, Brazil
- Average humidity in December: 60%
The month with the highest relative humidity is April (76%).
The month with the lowest relative humidity is September (55%).
Average rainfall in December
Alto Santo, Brazil
- Average rainfall in December: 11mm
The wettest month (with the highest rainfall) is March (83mm).
The driest months (with the least rainfall) are September and October (1mm).
Average rainfall days in December
Alto Santo, Brazil
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is September (1.9 days).
Average daylight in December /
Average sunshine in December
Alto Santo, Brazil
- Average daylight in December: 12h and 2min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in December: 8h and 4min
The month with the most sunshine is September (Average sunshine: 9h and 42min).
The month with the least sunshine is March (Average sunshine: 7h and 48min).
Average sunshine days in December
Alto Santo, Brazil
- Average sunshine days in December: 21.5 days
The months with the most sunshine days are September and October (27.7 days).
The month with the least sunshine days is March (8.5 days).
Average UV index in December
Alto Santo, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Alto Santo, Brazil
- Average cloud cover in December: 31
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in December
Alto Santo, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are March, April and May (9km).
Alto Santo, Brazil
Weather forecast for your location
2. Allow the app to use your location
