January weather forecast
Caiçara, Brazil

January, like December, in Caiçara, Brazil, is another warm summer month, with temperature in the range of an average high of 29.9°C (85.8°F) and an average low of 18.9°C (66°F).

Temperature

January stands out as Caiçara's warmest month, with temperatures ranging between an average high of 29.9°C (85.8°F) and a low of 18.9°C (66°F).

Heat index

In January, the average heat index is computed to be a very hot 37°C (98.6°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in January is 80%.

Rainfall

In Caiçara, Brazil, in January, it is raining for 21.6 days, with typically 118mm (4.65") of accumulated precipitation. In Caiçara, during the entire year, the rain falls for 185.1 days and collects up to 1259mm (49.57") of precipitation.

Daylight

In January, the average length of the day in Caiçara is 13h and 38min.
On the first day of January in Caiçara, sunrise is at 05:42 and sunset at 19:31. On the last day of the month, sunrise is at 06:05 and sunset at 19:28 -03.

Sunshine

In January, the average sunshine is 8.6h.

UV index

The months with the highest UV index in Caiçara are January through March, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 6 in January translates into these instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.