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 advent of December reveals an average high-temperature of a still warm 27.5°C (81.5°F), showing minimal difference from the prior month. Nighttime temperatures record an average of 22.6°C (72.7°F) throughout December.Heat index
For most parts of December, the heat index is estimated at a tropical 31°C (87.8°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The average relative humidity in December is 82%.Rainfall
In Pacheco, during December, the rain falls for 20.1 days and regularly aggregates up to 91mm (3.58") of precipitation. Throughout the year, there are 194.8 rainfall days, and 810mm (31.89") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 13h and 30min of daylight.On the first day of the month, sunrise is at 04:57 and sunset at 18:23. On the last day of December, sunrise is at 05:09 and sunset at 18:39 -03.
Sunshine
In Pacheco, the average sunshine in December is 8.5h.UV index
January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 7 in December transforms into this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. 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. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Pacheco in December?
What is the average humidity in December?
How many days does it rain in December?
When are the longest days in Pacheco?
How many hours of daylight does Pacheco have 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 intensity in December?
Average temperature in December
Pacheco, Brazil
- Average high temperature in December: 27.5°C
The warmest month (with the highest average high temperature) is February (29°C).
The month with the lowest average high temperature is July (23.6°C).
- Average low temperature in December: 22.6°C
The months with the highest average low temperature are January and February (23.3°C).
The coldest months (with the lowest average low temperature) are July and August (18.3°C).
Average pressure in December
Pacheco, Brazil
- Average pressure in December: 1011.9mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1011.9mbar).
Average wind speed in December
Pacheco, Brazil
- Average wind speed in December: 9.8km/h
The windiest month (with the highest average wind speed) is September (12.1km/h).
The calmest month (with the lowest average wind speed) is March (9km/h).
Average humidity in December
Pacheco, Brazil
- Average humidity in December: 82%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Pacheco, Brazil
- Average rainfall in December: 91mm
The wettest month (with the highest rainfall) is November (110mm).
The driest month (with the least rainfall) is July (34mm).
Average rainfall days in December
Pacheco, Brazil
- Average rainfall days in December: 20.1 days
The month with the highest number of rainy days is March (22.3 days).
The month with the least rainy days is August (11.1 days).
Average daylight in December /
Average sunshine in December
Pacheco, Brazil
- Average daylight in December: 13h and 3min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in December: 8h and 3min
The month with the most sunshine is February (Average sunshine: 8h and 54min).
The month with the least sunshine is October (Average sunshine: 7h and 42min).
Average sunshine days in December
Pacheco, Brazil
- Average sunshine days in December: 8.1 days
The month with the most sunshine days is August (18.1 days).
The month with the least sunshine days is March (5.3 days).
Average UV index in December
Pacheco, Brazil
- Average UV index in December: 7
The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are February, March, April, May, June, July, August, September, October and November (UV index 6).
Average cloud cover in December
Pacheco, Brazil
- Average cloud cover in December: 38
The month with the most cloud cover is November (Cloud cover 45).
The month with the least cloud cover is February (Cloud cover 27).
Average visibility in December
Pacheco, Brazil
- Average visibility in December: 10km
The months with the highest visibility are February, May, June, July, August, September and December (10km).
The months with the lowest visibility are January, March, April, October and November (9km).
