January weather forecast
Jacarecica, Brazil

January, the same as December, in Jacarecica, Brazil, is a hot summer month, with an average temperature varying between 23.3°C (73.9°F) and 30.4°C (86.7°F).

Temperature

Jacarecica notes an average high-temperature of a still hot 30.4°C (86.7°F) in January, hardly diverging from December. Jacarecica's nighttime temperature during January is consistently averaged at a moderately hot 23.3°C (73.9°F).

Heat index

The heat index for January is calculated to be a fiery hot 37°C (98.6°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In Jacarecica, the average relative humidity in January is 75%.

Rainfall

In Jacarecica, Brazil, in January, during 21.3 rainfall days, 44mm (1.73") of precipitation is typically accumulated. Throughout the year, in Jacarecica, there are 256.6 rainfall days, and 686mm (27.01") of precipitation is accumulated.

Daylight

In January, the average length of the day is 12h and 37min.
On the first day of January in Jacarecica, sunrise is at 05:05 and sunset at 17:46. On the last day of the month, sunrise is at 05:20 and sunset at 17:51 -03.

Sunshine

In Jacarecica, the average sunshine in January is 7.7h.

UV index

January through March, October through December, with an average maximum UV index of 7, are months with the highest UV index in Jacarecica. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 during January translates into the following directions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.