December weather forecast
Icapuí, Brazil

December, the first month of the summer in Icapuí, is still a hot month, with temperature in the range of an average low of 25.7°C (78.3°F) and an average high of 31°C (87.8°F).

Temperature

December's arrival brings an average high-temperature of a still tropical 31°C (87.8°F), demonstrating subtle variation from the preceding month. The average nighttime temperature lowers to a warm 25.7°C (78.3°F) throughout December.

Heat index

The heat index in December is computed to be a torrid 38°C (100.4°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In December, the average relative humidity in Icapuí is 70%.

Rainfall

In Icapuí, during December, the rain falls for 9.9 days and regularly aggregates up to 16mm (0.63") of precipitation. In Icapuí, Brazil, during the entire year, the rain falls for 155.5 days and collects up to 547mm (21.54") of precipitation.

Daylight

With an average of 12h and 24min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:07 and sunset at 17:29. On the last day of December, in Icapuí, sunrise is at 05:20 and sunset at 17:44 -03.

Sunshine

In December, the average sunshine in Icapuí, Brazil, is 8.3h.

UV index

The months with the highest UV index in Icapuí, Brazil, are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Boost your sun resistance with garments that are densely woven yet spacious.