December weather forecast
Santa Rita, Brazil

December, the first month of the summer in Santa Rita, is also a hot month, with an average temperature fluctuating between 30.4°C (86.7°F) and 24.6°C (76.3°F).

Temperature

The arrival of December sees an average high-temperature of a still hot 30.4°C (86.7°F), hardly diverging from November's 30°C (86°F). In the month of December, the average temperature in Santa Rita dips to a warm 24.6°C (76.3°F) during the night.

Heat index

For December, the heat index is estimated at a very hot 37°C (98.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild 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 'felt air temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In Santa Rita, the average relative humidity in December is 72%.

Rainfall

In Santa Rita, in December, during 16.9 rainfall days, 20mm (0.79") of precipitation is typically accumulated. Throughout the year, there are 206.1 rainfall days, and 449mm (17.68") of precipitation is accumulated.

Daylight

The month with the longest days in Santa Rita is December, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 04:53 and sunset at 17:24. On the last day of the month, sunrise is at 05:07 and sunset at 17:39 -03.

Sunshine

In Santa Rita, the average sunshine in December is 7.6h.

UV index

The months with the highest UV index are January through March, May, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in December interprets into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.