December weather forecast
Cocotá, Brazil

The first month of the summer, December, is still a warm month in Cocotá, Brazil, with temperature in the range of an average low of 21.8°C (71.2°F) and an average high of 28.9°C (84°F).

Temperature

The transition into December reveals an average high-temperature of a still warm 28.9°C (84°F), mirroring a close resemblance to November. In the month of December, the nighttime temperature dips to a steady average of 21.8°C (71.2°F).

Heat index

For most parts of December, the heat index is computed to be a sweltering 35°C (95°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Cocotá, during December, the rain falls for 23.8 days and regularly aggregates up to 84mm (3.31") of precipitation. In Cocotá, during the entire year, the rain falls for 205.4 days and collects up to 637mm (25.08") of precipitation.

Daylight

With an average of 13h and 30min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 04:58 and sunset at 18:25. On the last day of December, sunrise is at 05:10 and sunset at 18:41 -03.

Sunshine

In December, the average sunshine is 7.8h.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 7 in December suggests the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.