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
Arroio Grande's December reports an average high-temperature of a still warm 27.2°C (81°F), exhibiting a minor difference from November. The low-temperature averages to a refreshing 18.4°C (65.1°F) during the nights of December.Heat index
In December, the heat index is calculated to be 29°C (84.2°F). One might feel worn out with persistent exposure and activity, resulting in heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. 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 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The least humid month in Arroio Grande is December, with an average relative humidity of 73%.Rainfall
In Arroio Grande, in December, it is raining for 11.9 days, with typically 55mm (2.17") of accumulated precipitation. In Arroio Grande, during the entire year, the rain falls for 143.8 days and collects up to 766mm (30.16") of precipitation.Daylight
With an average of 14h and 12min of daylight, December has the longest days of the year in Arroio Grande.On the first day of the month, sunrise is at 05:18 and sunset at 19:24. On the last day of December, in Arroio Grande, sunrise is at 05:28 and sunset at 19:42 -03.
Sunshine
With an average of 8.4h of sunshine, December has the most sunshine of the year.UV index
The months with the highest UV index are January through March and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 6 in December translates into these instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Arroio Grande?
What is the least humid month in Arroio Grande?
What is the average humidity in December in Arroio Grande?
How many days does it rain in December in Arroio Grande?
When are the longest days in Arroio Grande?
How many hours of daylight does Arroio Grande have in December?
When is the sunrise / sunset in December in Arroio Grande?
What month has the most sunshine in Arroio Grande?
How many hours of sunshine does Arroio Grande have in December?
When is the highest UV index in Arroio Grande?
How high is the UV index in December in Arroio Grande?
Average temperature in December
Arroio Grande, Brazil
- Average high temperature in December: 27.2°C
The warmest month (with the highest average high temperature) is February (28.4°C).
The month with the lowest average high temperature is July (16.8°C).
- Average low temperature in December: 18.4°C
The month with the highest average low temperature is February (20.3°C).
The coldest month (with the lowest average low temperature) is July (10°C).
Average pressure in December
Arroio Grande, Brazil
- Average pressure in December: 1011.7mbar
The month with the highest atmospheric pressure is July (1019.6mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in December
Arroio Grande, Brazil
- Average wind speed in December: 16.3km/h
The windiest month (with the highest average wind speed) is October (17.3km/h).
The calmest month (with the lowest average wind speed) is May (14.3km/h).
Average humidity in December
Arroio Grande, Brazil
- Average humidity in December: 73%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is December (73%).
Average rainfall in December
Arroio Grande, Brazil
- Average rainfall in December: 55mm
The wettest month (with the highest rainfall) is January (90mm).
The driest month (with the least rainfall) is February (45mm).
Average rainfall days in December
Arroio Grande, Brazil
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is March (13.9 days).
The month with the least rainy days is June (9.8 days).
Average daylight in December /
Average sunshine in December
Arroio Grande, Brazil
- Average daylight in December: 14h and 1min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in December: 8h and 2min
The month with the most sunshine is December (Average sunshine: 8h and 24min).
The month with the least sunshine is September (Average sunshine: 7h and 6min).
Average sunshine days in December
Arroio Grande, Brazil
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is June (18.9 days).
The month with the least sunshine days is February (13 days).
Average UV index in December
Arroio Grande, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are May, June, July and August (UV index 4).
Average cloud cover in December
Arroio Grande, Brazil
- Average cloud cover in December: 33
The month with the most cloud cover is September (Cloud cover 41).
The months with the least cloud cover are November and December (Cloud cover 33).
Average visibility in December
Arroio Grande, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, November and December (10km).
The months with the lowest visibility are August, September and October (9km).
