January weather forecast
Macarani, Brazil

January, like December, in Macarani, Brazil, is a moderately hot summer month, with an average temperature fluctuating between 18.8°C (65.8°F) and 29.3°C (84.7°F).

Temperature

January's advent notes a subtle adjustment in average high-temperature to a still moderately hot 29.3°C (84.7°F) from December. Macarani's January nights cool down to an average low-temperature of 18.8°C (65.8°F).

Heat index

The average heat index in January is calculated to be a sweltering 36°C (96.8°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in January in Macarani is 83%.

Rainfall

In Macarani, during January, the rain falls for 15.9 days and regularly aggregates up to 42mm (1.65") of precipitation. In Macarani, during the entire year, the rain falls for 209.2 days and collects up to 561mm (22.09") of precipitation.

Daylight

In January, the average length of the day is 12h and 56min.
On the first day of the month, sunrise is at 05:14 and sunset at 18:16. On the last day of January, sunrise is at 05:31 and sunset at 18:18 -03.

Sunshine

The average sunshine in January is 8.2h.

UV index

The months with the highest UV index are January through April, August through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the maximum UV index of 6 suggests this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.