January weather forecastGávea, Brazil

Weather in January

January, the same as December, is a moderately hot summer month in Gávea, Brazil, with an average temperature ranging between min 23.7°C (74.7°F) and max 29.2°C (84.6°F).

Temperature

Gávea measures an average high-temperature of a still warm 29.2°C (84.6°F) in January, nearly consistent with the preceding month. Gávea records an average nighttime low-temperature of 23.7°C (74.7°F) throughout January.

Heat index

In January, the average heat index is estimated at a sweltering 35°C (95°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in January is 79%.

Rainfall

In Gávea, during January, the rain falls for 19.8 days and regularly aggregates up to 102mm (4.02") of precipitation. Throughout the year, in Gávea, there are 192.5 rainfall days, and 812mm (31.97") of precipitation is accumulated.

Daylight

In January, the average length of the day in Gávea is 13h and 22min.
On the first day of the month, sunrise is at 05:10 and sunset at 18:41. On the last day of January, in Gávea, Brazil, sunrise is at 05:31 and sunset at 18:40 -03.

Sunshine

In January, the average sunshine is 8.5h.

UV index

The month with the highest UV index in Gávea, Brazil, is January, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In January, the maximum UV index of 7 suggests these recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.