December weather forecast
Ivatuba, Brazil

December, the first month of the summer in Ivatuba, is still a warm month, with temperature in the range of an average high of 29.5°C (85.1°F) and an average low of 20.1°C (68.2°F).

Temperature

The onset of December brings an average high-temperature of a still warm 29.5°C (85.1°F), nearly matching the November temperature. During the month of December, the nighttime temperature in Ivatuba falls to an average of 20.1°C (68.2°F).

Heat index

The average heat index in December is estimated at a very hot 36°C (96.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Ivatuba, in December, it is raining for 25.4 days, with typically 170mm (6.69") of accumulated precipitation. In Ivatuba, during the entire year, the rain falls for 196.7 days and collects up to 1243mm (48.94") of precipitation.

Daylight

The month with the longest days in Ivatuba is December, with an average of 13h and 36min of daylight.
On the first day of December in Ivatuba, sunrise is at 05:33 and sunset at 19:02. On the last day of the month, sunrise is at 05:45 and sunset at 19:19 -03.

Sunshine

In December, the average sunshine in Ivatuba, Brazil, is 8.1h.

UV index

April through July and December, with an average maximum UV index of 5, are months with the lowest UV index in Ivatuba. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 5 transforms into the following advice:
Take precautions - Protection against sunburn is recommended. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Boost your sun resistance with garments that are densely woven yet spacious.