December weather forecast
Codajás, Brazil

The first month of the summer, December, is still a tropical month in Codajás, Brazil, with temperature in the range of an average low of 23.3°C (73.9°F) and an average high of 31°C (87.8°F).

Temperature

Codajás, Brazil, records an average high-temperature of a still hot 31°C (87.8°F) in December, closely mirroring the climate of the previous month. An average low-temperature of 23.3°C (73.9°F) is anticipated throughout the nights during December.

Heat index

For most parts of December, the heat index is calculated to be a blistering 43°C (109.4°F). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Codajás, the average relative humidity in December is 86%.

Rainfall

The month with the most rainfall is December, when the rain falls for 27.8 days and typically aggregates up to 243mm (9.57") of precipitation.

Daylight

With an average of 12h and 18min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:47 and sunset at 18:07. On the last day of December, sunrise is at 06:01 and sunset at 18:21 -04.

Sunshine

The average sunshine in December in Codajás, Brazil, is 7.2h.

UV index

The months with the lowest UV index in Codajás are January, March through May and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 6 during December translates into the following guidance:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.