December weather forecastPanelas, Brazil

Weather in December

The first month of the summer, December, is a tropical month in Panelas, Brazil, with an average temperature fluctuating between 30°C (86°F) and 20.5°C (68.9°F).

Temperature

The transition from November to December sees an average high-temperature of a tropical 30°C (86°F), indicating a minor variance from the prior month. In Panelas, the December nights cool down to an average low of 20.5°C (68.9°F).

Heat index

December's average heat index is estimated at a sweltering 36°C (96.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

With an average relative humidity of 73%, December is the least humid month.

Rainfall

In Panelas, in December, it is raining for 13.5 days, with typically 13mm (0.51") of accumulated precipitation. In Panelas, during the entire year, the rain falls for 181.6 days and collects up to 347mm (13.66") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 04:55 and sunset at 17:31. On the last day of December, in Panelas, sunrise is at 05:08 and sunset at 17:45 -03.

Sunshine

In December, the average sunshine is 6.7h.

UV index

The months with the highest UV index in Panelas are January through April, June, August through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.