December weather forecast
Japaratuba, Brazil

December, the first month of the summer in Japaratuba, is still a tropical month, with temperature in the range of an average low of 24°C (75.2°F) and an average high of 30.9°C (87.6°F).

Temperature

The ushering in of December brings an average high-temperature of a still hot 30.9°C (87.6°F), closely mirroring the 30.2°C (86.4°F) of November. Japaratuba's nights in December cool down to an average low-temperature of 24°C (75.2°F).

Heat index

In December, the heat index is calculated to be a very hot 38°C (100.4°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The months with the lowest humidity are January through March and December, with an average relative humidity of 73%.

Rainfall

In December, in Japaratuba, the rain falls for 12 days. Throughout December, 28mm (1.1") of precipitation is accumulated. In Japaratuba, during the entire year, the rain falls for 211.1 days and collects up to 584mm (22.99") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 42min of daylight.
On the first day of the month, sunrise is at 04:55 and sunset at 17:38. On the last day of December, in Japaratuba, Brazil, sunrise is at 05:09 and sunset at 17:53 -03.

Sunshine

The months with the most sunshine are March and December, with an average of 8.3h of sunshine.

UV index

The months with the highest UV index in Japaratuba are January through April, October through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.