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
The onset of December brings an average high-temperature of a hot 33.3°C (91.9°F), nearly matching the November temperature. Urbano Santos encounters a steady low-temperature average of 23°C (73.4°F) throughout the month of December.Heat index
December's mean heat index is evaluated at a burning hot 46°C (114.8°F). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.Given the heat index, its values are aligned with shaded sites and gentle winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
The average relative humidity in December is 74%.Rainfall
In December, the rain falls for 21.5 days. Throughout December, 95mm (3.74") of precipitation is accumulated. Throughout the year, in Urbano Santos, there are 245.1 rainfall days, and 1260mm (49.61") of precipitation is accumulated.Daylight
With an average of 12h and 18min of daylight, December has the longest days of the year.On the first day of December in Urbano Santos, sunrise is at 05:33 and sunset at 17:51. On the last day of the month, sunrise is at 05:47 and sunset at 18:06 -03.
Sunshine
In December, the average sunshine is 8.1h.UV index
The months with the lowest UV index are January through June and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 6 in December suggests the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Urbano Santos in December?
What is the average humidity in December in Urbano Santos?
How much does it rain in Urbano Santos in December?
When are the longest days in Urbano Santos?
How many hours of daylight does Urbano Santos have in December?
What time are sunrise and sunset in December in Urbano Santos?
How many hours of sunshine does Urbano Santos have in December?
What is the month with the lowest UV index in Urbano Santos?
How high is the UV index in December in Urbano Santos?
Average temperature in December
Urbano Santos, Brazil
- Average high temperature in December: 33.3°C
The warmest month (with the highest average high temperature) is October (36°C).
The month with the lowest average high temperature is May (30°C).
- Average low temperature in December: 23°C
The month with the highest average low temperature is November (23.3°C).
The coldest month (with the lowest average low temperature) is July (20.8°C).
Average pressure in December
Urbano Santos, Brazil
- Average pressure in December: 1009.4mbar
The month with the highest atmospheric pressure is July (1012.8mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in December
Urbano Santos, Brazil
- Average wind speed in December: 8.6km/h
The windiest month (with the highest average wind speed) is October (9.3km/h).
The calmest months (with the lowest average wind speed) are April and May (5.5km/h).
Average humidity in December
Urbano Santos, Brazil
- Average humidity in December: 74%
The month with the highest relative humidity is April (90%).
The months with the lowest relative humidity are September and October (64%).
Average rainfall in December
Urbano Santos, Brazil
- Average rainfall in December: 95mm
The wettest month (with the highest rainfall) is March (237mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days in December
Urbano Santos, Brazil
- Average rainfall days in December: 21.5 days
The month with the highest number of rainy days is March (29.8 days).
The month with the least rainy days is September (7.9 days).
Average daylight in December /
Average sunshine in December
Urbano Santos, Brazil
- Average daylight in December: 12h and 2min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in December: 8h and 1min
The month with the most sunshine is September (Average sunshine: 9h and 6min).
The month with the least sunshine is April (Average sunshine: 5h and 54min).
Average sunshine days in December
Urbano Santos, Brazil
- Average sunshine days in December: 7.4 days
The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is April (0.6 days).
Average UV index in December
Urbano Santos, Brazil
- Average UV index in December: 6
The months with the highest UV index are July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June and December (UV index 6).
Average cloud cover in December
Urbano Santos, Brazil
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in December
Urbano Santos, Brazil
- Average visibility in December: 9km
The months with the highest visibility are September, October, November and December (9km).
The months with the lowest visibility are February, March, April and May (6km).
