December weather forecastItanhém, Brazil
December
Weather in December
December, the first month of the summer in Itanhém, is a tropical month, with temperature in the range of an average low of 21.2°C (70.2°F) and an average high of 30.3°C (86.5°F).Temperature
A minor adjustment in Itanhém's average high-temperature is noted with the start of December, touching a tropical 30.3°C (86.5°F) from November's 29°C (84.2°F). Itanhém, in December, witnesses an average low-temperature of 21.2°C (70.2°F).Heat index
In December, the heat index is computed to be a fiery hot 39°C (102.2°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. 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.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
In December, the average relative humidity in Itanhém is 81%.Rainfall
The month with the most rainfall is December, when the rain falls for 22 days and typically aggregates up to 123mm (4.84") of precipitation.Daylight
With an average of 13h and 6min of daylight, December has the longest days of the year in Itanhém.On the first day of December, sunrise is at 04:58 and sunset at 18:03. On the last day of the month, sunrise is at 05:10 and sunset at 18:18 -03.
Sunshine
The average sunshine in December in Itanhém is 8.5h.UV index
In December, the average daily maximum UV index in Itanhém is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 6 suggests these recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Itanhém, Brazil
- Average high temperature in December: 30.3°C
The warmest month (with the highest average high temperature) is February (31.2°C).
The month with the lowest average high temperature is July (25.9°C).
- Average low temperature in December: 21.2°C
The months with the highest average low temperature are February and March (21.3°C).
The coldest month (with the lowest average low temperature) is July (17.2°C).
Average pressure in December
Itanhém, Brazil
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).
Average wind speed in December
Itanhém, Brazil
- Average wind speed in December: 9km/h
The windiest month (with the highest average wind speed) is October (9.6km/h).
The calmest months (with the lowest average wind speed) are May and June (6.6km/h).
Average humidity in December
Itanhém, Brazil
- Average humidity in December: 81%
The months with the highest relative humidity are April, May and June (85%).
The month with the lowest relative humidity is September (78%).
Average rainfall in December
Itanhém, Brazil
- Average rainfall in December: 123mm
The wettest month (with the highest rainfall) is December (123mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in December
Itanhém, Brazil
- Average rainfall days in December: 22 days
The month with the highest number of rainy days is November (23.1 days).
The month with the least rainy days is September (15.2 days).
Average daylight in December /
Average sunshine in December
Itanhém, Brazil
- Average daylight in December: 13h and 6min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in December: 8h and 30min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 5h and 36min).
Average sunshine days in December
Itanhém, Brazil
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is September (10.4 days).
The months with the least sunshine days are April and November (5.4 days).
Average UV index in December
Itanhém, Brazil
- Average UV index in December: 6
The month with the highest UV index is February (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in December
Itanhém, Brazil
- Average cloud cover in December: 52
The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is February (Cloud cover 44).
Average visibility in December
Itanhém, Brazil
- Average visibility in December: 8km
The months with the highest visibility are February, September, October and December (8km).
The months with the lowest visibility are January, March, April, May, June, July, August and November (7km).
