December weather forecast
Umburatiba, Brazil

The first month of the summer, December, is also a moderately hot month in Umburatiba, Brazil, with an average temperature varying between 20.5°C (68.9°F) and 29.6°C (85.3°F).

Temperature

The transition into December marks the average high-temperature at a still warm 29.6°C (85.3°F), differing minimally from November's 28.8°C (83.8°F). The low-temperature average for Umburatiba during December stands at an agreeable 20.5°C (68.9°F).

Heat index

The average heat index in December is evaluated at a fiery hot 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In December, the average relative humidity in Umburatiba, Brazil, is 83%.

Rainfall

December is the month with the most rainfall. Rain falls for 23.9 days and accumulates 148mm (5.83") of precipitation.

Daylight

The month with the longest days in Umburatiba is December, with an average of 13h and 6min of daylight.
On the first day of the month, sunrise is at 04:58 and sunset at 18:04. On the last day of December, in Umburatiba, sunrise is at 05:11 and sunset at 18:19 -03.

Sunshine

In December, the average sunshine is 7.4h.

UV index

January through June, August through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 in December converts into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.