December weather forecastIpanguaçu, Brazil

Weather in December

December, the first month of the summer in Ipanguaçu, is still a very hot month, with an average temperature ranging between min 24.2°C (75.6°F) and max 35°C (95°F).

Temperature

The transition from November to December brings an average high-temperature of a still sweltering 35°C (95°F), barely different from November's 35.5°C (95.9°F). In Ipanguaçu, December's nights observe an average temperature dip to a warm 24.2°C (75.6°F).

Heat index

In December, the average heat index is estimated at a blisteringly hot 44°C (111.2°F). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. 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.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In December, the average relative humidity is 57%.

Rainfall

In Ipanguaçu, in December, during 4.3 rainfall days, 10mm (0.39") of precipitation is typically accumulated. Throughout the year, in Ipanguaçu, there are 112.4 rainfall days, and 381mm (15") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 24min of daylight.
On the first day of the month, sunrise is at 05:04 and sunset at 17:29. On the last day of December, sunrise is at 05:17 and sunset at 17:43 -03.

Sunshine

The average sunshine in December in Ipanguaçu is 8.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 7 in December translates into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.