December weather forecast
Guariba, Brazil

The first month of the summer, December, is also a moderately hot month in Guariba, Brazil, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 20.3°C (68.5°F).

Temperature

As November turns into December, the average high-temperatures rest at a still warm 28.9°C (84°F), showing a minor variation from the prior month. In Guariba, the average nighttime temperature during December is an agreeable 20.3°C (68.5°F).

Heat index

The heat index for December is computed to be a very hot 35°C (95°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
One should consider that heat index numbers are for shaded settings and light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In December, the average relative humidity in Guariba is 82%.

Rainfall

In December, the rain falls for 23.3 days. Throughout December, 93mm (3.66") of precipitation is accumulated. Throughout the year, in Guariba, there are 167.1 rainfall days, and 688mm (27.09") of precipitation is accumulated.

Daylight

With an average of 13h and 24min of daylight, December has the longest days of the year in Guariba, Brazil.
On the first day of December in Guariba, sunrise is at 05:21 and sunset at 18:42. On the last day of the month, sunrise is at 05:33 and sunset at 18:58 -03.

Sunshine

In December, the average sunshine in Guariba is 7.7h.

UV index

January through March, July through December, with an average maximum UV index of 6, are months with the highest UV index in Guariba. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: During December, 6 as the daily maximum UV index converts into the following advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.