January weather forecast
Barra, Brazil

January, the same as December, in Barra, Brazil, is a hot summer month, with an average temperature fluctuating between 30.6°C (87.1°F) and 22.1°C (71.8°F).

Temperature

January's arrival brings an average high-temperature of a still hot 30.6°C (87.1°F), demonstrating subtle variation from the preceding month. Barra, in January, experiences an average temperature of 22.1°C (71.8°F) at night.

Heat index

In January, the average heat index is calculated to be a fiery hot 36°C (96.8°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. 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. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In January, the average relative humidity is 68%.

Rainfall

In January, in Barra, the rain falls for 17.7 days. Throughout January, 89mm (3.5") of precipitation is accumulated. Throughout the year, in Barra, there are 121.7 rainfall days, and 646mm (25.43") of precipitation is accumulated.

Daylight

The average length of the day in January in Barra is 12h and 41min.
On the first day of the month, sunrise is at 05:33 and sunset at 18:18. On the last day of January, sunrise is at 05:48 and sunset at 18:23 -03.

Sunshine

The month with the most sunshine is January, with an average of 11h of sunshine.

UV index

January through May, August through November, with an average maximum UV index of 7, are months with the highest UV index in Barra. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 7 in January transforms into this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.