December weather forecast
Ibiracatu, Brazil

The first month of the summer, December, is still a warm month in Ibiracatu, Brazil, with an average temperature fluctuating between 28.9°C (84°F) and 19.6°C (67.3°F).

Temperature

Ibiracatu observes an average high-temperature of a still warm 28.9°C (84°F) in December, barely different from 29.5°C (85.1°F) in November. Ibiracatu experiences an average low-temperature of 19.6°C (67.3°F) in the month of December.

Heat index

For December, the heat index is appraised at a sweltering 35°C (95°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in December in Ibiracatu is 81%.

Rainfall

The month with the most rainfall is December, when the rain falls for 20.7 days and typically aggregates up to 120mm (4.72") of precipitation.

Daylight

With an average of 13h and 0min of daylight, December has the longest days of the year in Ibiracatu.
On the first day of the month, sunrise is at 05:16 and sunset at 18:15. On the last day of December, in Ibiracatu, sunrise is at 05:28 and sunset at 18:31 -03.

Sunshine

In Ibiracatu, the average sunshine in December is 7.9h.

UV index

The months with the lowest UV index in Ibiracatu, Brazil, are January through July, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.