December weather forecastItabaiana, Brazil

Weather in December

December, the first month of the summer in Itabaiana, is also a hot month, with an average temperature fluctuating between 31.9°C (89.4°F) and 21.8°C (71.2°F).

Temperature

Itabaiana's weather in December indicates an average high-temperature of a still hot 31.9°C (89.4°F), nearly consistent with the 31.5°C (88.7°F) of November. Throughout the month of December, Itabaiana observes an average nighttime temperature of 21.8°C (71.2°F).

Heat index

In December, the average heat index is evaluated at a scorching 41°C (105.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The least humid month is December, with an average relative humidity of 72%.

Rainfall

In Itabaiana, during December, the rain falls for 8 days and regularly aggregates up to 24mm (0.94") of precipitation. In Itabaiana, during the entire year, the rain falls for 183.6 days and collects up to 371mm (14.61") of precipitation.

Daylight

With an average of 12h and 42min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 04:57 and sunset at 17:40. On the last day of December, sunrise is at 05:10 and sunset at 17:55 -03.

Sunshine

December has the most sunshine of the year in Itabaiana, with an average of 7.9h of sunshine.

UV index

The months with the highest UV index in Itabaiana are January through March, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 7 during December translates into the following directions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.