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
The introduction of December notes a subtle temperature variation to a still warm 28.7°C (83.7°F) from November's 26.4°C (79.5°F). Throughout December, Dois Irmãos witnesses a consistent average low-temperature of 17.9°C (64.2°F).Heat index
During December, the heat index is estimated at a hot 33°C (91.4°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Consider that heat index readings are for situations in the shade and light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. 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 significant for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
With an average relative humidity of 75%, December is the least humid month in Dois Irmãos, Brazil.Rainfall
In Dois Irmãos, in December, during 11.4 rainfall days, 22mm (0.87") of precipitation is typically accumulated. In Dois Irmãos, Brazil, during the entire year, the rain falls for 118.4 days and collects up to 272mm (10.71") of precipitation.Daylight
The month with the longest days in Dois Irmãos is December, with an average of 14h and 0min of daylight.On the first day of December, sunrise is at 05:16 and sunset at 19:10. On the last day of the month, sunrise is at 05:27 and sunset at 19:27 -03.
Sunshine
The month with the most sunshine in Dois Irmãos is December, with an average of 8.6h of sunshine.UV index
The months with the highest UV index are January through March, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 6 during December translates into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
How hot is December in Dois Irmãos?
What is the least humid month in Dois Irmãos?
What is the average humidity in December in Dois Irmãos?
How many days does it rain in December in Dois Irmãos?
When are the longest days in Dois Irmãos?
What is the average length of the day in December in Dois Irmãos?
When are sunrise and sunset in December in Dois Irmãos?
What month has the most sunshine in Dois Irmãos?
How long on average sun shines in December in Dois Irmãos?
What are the months with the highest UV index in Dois Irmãos?
What is the UV index reading in December in Dois Irmãos?
Average temperature in December
Dois Irmãos, Brazil
- Average high temperature in December: 28.7°C
The warmest month (with the highest average high temperature) is February (29.3°C).
The month with the lowest average high temperature is July (18.3°C).
- Average low temperature in December: 17.9°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (9.8°C).
Average pressure in December
Dois Irmãos, Brazil
- Average pressure in December: 1011.5mbar
The month with the highest atmospheric pressure is July (1019.9mbar).
The month with the lowest atmospheric pressure is December (1011.5mbar).
Average wind speed in December
Dois Irmãos, Brazil
- Average wind speed in December: 9.5km/h
The windiest month (with the highest average wind speed) is August (9.9km/h).
The calmest month (with the lowest average wind speed) is May (8.6km/h).
Average humidity in December
Dois Irmãos, Brazil
- Average humidity in December: 75%
The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is December (75%).
Average rainfall in December
Dois Irmãos, Brazil
- Average rainfall in December: 22mm
The wettest months (with the highest rainfall) are January and October (30mm).
The driest month (with the least rainfall) is September (11mm).
Average rainfall days in December
Dois Irmãos, Brazil
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is January (12.8 days).
The month with the least rainy days is June (7.7 days).
Average daylight in December /
Average sunshine in December
Dois Irmãos, Brazil
- Average daylight in December: 14h and 0min
The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in December: 8h and 4min
The month with the most sunshine is December (Average sunshine: 8h and 36min).
The month with the least sunshine is May (Average sunshine: 7h and 18min).
Average sunshine days in December
Dois Irmãos, Brazil
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is July (21.4 days).
The month with the least sunshine days is February (15.3 days).
Average UV index in December
Dois Irmãos, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are May and June (UV index 4).
Average cloud cover in December
Dois Irmãos, Brazil
- Average cloud cover in December: 32
The month with the most cloud cover is May (Cloud cover 39).
The month with the least cloud cover is November (Cloud cover 31).
Average visibility in December
Dois Irmãos, Brazil
- Average visibility in December: 9km
The months with the highest visibility are February, April, June, July, August, November and December (9km).
The months with the lowest visibility are January, March, May, September and October (8km).
Dois Irmãos, Brazil
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