January weather forecast
Leblon, Brazil

January, the same as December, is another warm summer month in Leblon, Brazil, with an average temperature varying between 29.2°C (84.6°F) and 23.7°C (74.7°F).

Temperature

The transition from December to January brings an average high-temperature of a still moderately hot 29.2°C (84.6°F), barely different from December's 28.2°C (82.8°F). Throughout January, Leblon records an average temperature of 23.7°C (74.7°F) at night.

Heat index

In January, the average heat index is calculated to be a fiery hot 35°C (95°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In January, the average relative humidity in Leblon, Brazil, is 79%.

Rainfall

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

Daylight

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

Sunshine

In January, the average sunshine in Leblon, Brazil, is 8.5h.

UV index

With an average maximum UV index of 7, January is the month with the highest UV index in Leblon. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during January translates into these guidelines:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.