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
Rio Formoso's December showcases an average high-temperature of a still moderately hot 28.5°C (83.3°F), hardly distinct from November's 28.2°C (82.8°F). Rio Formoso's nighttime temperatures in December settle close to daytime highs at an average of 24.2°C (75.6°F).Heat index
For December, the heat index is evaluated at a tropical 33°C (91.4°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
The months with the lowest humidity are March and December, with an average relative humidity of 76%.Rainfall
In Rio Formoso, in December, during 16.8 rainfall days, 33mm (1.3") of precipitation is typically accumulated. Throughout the year, there are 250.9 rainfall days, and 879mm (34.61") of precipitation is accumulated.Daylight
With an average of 12h and 36min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 04:52 and sunset at 17:27. On the last day of December, sunrise is at 05:05 and sunset at 17:42 -03.
Sunshine
In Rio Formoso, the average sunshine in December is 8h.UV index
January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Rio Formoso. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 7 in December leads to these recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
Is it hot in Rio Formoso during December?
What is the least humid month in Rio Formoso?
What is the average humidity in December in Rio Formoso?
How much does it rain in Rio Formoso in December?
When are the longest days in Rio Formoso?
How many hours of daylight does Rio Formoso have in December?
What time are sunrise and sunset in December in Rio Formoso?
How many hours of sunshine does Rio Formoso have in December?
When is the highest UV index in Rio Formoso?
What is the UV index intensity in December in Rio Formoso?
Average temperature in December
Rio Formoso, Brazil
- Average high temperature in December: 28.5°C
The warmest month (with the highest average high temperature) is March (29.6°C).
The month with the lowest average high temperature is July (26°C).
- Average low temperature in December: 24.2°C
The month with the highest average low temperature is March (25.1°C).
The coldest month (with the lowest average low temperature) is August (22.4°C).
Average pressure in December
Rio Formoso, Brazil
- Average pressure in December: 1012.5mbar
The month with the highest atmospheric pressure is August (1016.9mbar).
The month with the lowest atmospheric pressure is March (1012.1mbar).
Average wind speed in December
Rio Formoso, Brazil
- Average wind speed in December: 15km/h
The windiest month (with the highest average wind speed) is September (16km/h).
The calmest month (with the lowest average wind speed) is April (11.3km/h).
Average humidity in December
Rio Formoso, Brazil
- Average humidity in December: 76%
The months with the highest relative humidity are June and July (82%).
The months with the lowest relative humidity are March and December (76%).
Average rainfall in December
Rio Formoso, Brazil
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is May (136mm).
The driest month (with the least rainfall) is November (26mm).
Average rainfall days in December
Rio Formoso, Brazil
- Average rainfall days in December: 16.8 days
The month with the highest number of rainy days is July (26.8 days).
The month with the least rainy days is November (15.7 days).
Average daylight in December /
Average sunshine in December
Rio Formoso, Brazil
- Average daylight in December: 12h and 4min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in December: 8h and 0min
The month with the most sunshine is March (Average sunshine: 8h and 18min).
The month with the least sunshine is July (Average sunshine: 6h and 54min).
Average sunshine days in December
Rio Formoso, Brazil
- Average sunshine days in December: 6.7 days
The month with the most sunshine days is March (7 days).
The month with the least sunshine days is July (2.1 days).
Average UV index in December
Rio Formoso, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in December
Rio Formoso, Brazil
- Average cloud cover in December: 41
The month with the most cloud cover is July (Cloud cover 50).
The month with the least cloud cover is March (Cloud cover 38).
Average visibility in December
Rio Formoso, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Rio Formoso, Brazil
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