January weather forecast
Botafogo, Brazil

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

Temperature

The commencement of January introduces an average high-temperature of a still moderately hot 29.2°C (84.6°F), closely mirroring the preceding month. Throughout January, Botafogo records an average temperature of 23.7°C (74.7°F) at night.

Heat index

The heat index for January is evaluated at a torrid 35°C (95°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In Botafogo, in January, it is raining for 19.8 days, with typically 102mm (4.02") of accumulated precipitation. In Botafogo, during the entire year, the rain falls for 192.5 days and collects up to 812mm (31.97") of precipitation.

Daylight

In Botafogo, the average length of the day in January is 13h and 22min.
On the first day of January, 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 is 8.5h.

UV index

The month with the highest UV index in Botafogo, Brazil, is January, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 7 transforms into these recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.