January weather forecast
Arroio do Meio, Brazil

January, like December, in Arroio do Meio, Brazil, is a moderately hot summer month, with an average temperature fluctuating between 18.5°C (65.3°F) and 29.5°C (85.1°F).

Temperature

The commencement of January brings an average high-temperature of a still moderately hot 29.5°C (85.1°F), marking an inconsequential divergence from December. An average nighttime temperature of 18.5°C (65.3°F) is noted during the month of January.

Heat index

In January, the heat index is computed to be a very hot 36°C (96.8°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. 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.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. 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. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Arroio do Meio, the average relative humidity in January is 79%.

Rainfall

In Arroio do Meio, Brazil, in January, it is raining for 18.6 days, with typically 91mm (3.58") of accumulated precipitation. In Arroio do Meio, during the entire year, the rain falls for 169.4 days and collects up to 977mm (38.46") of precipitation.

Daylight

The average length of the day in January in Arroio do Meio is 13h and 46min.
On the first day of January in Arroio do Meio, sunrise is at 05:31 and sunset at 19:30. On the last day of the month, sunrise is at 05:56 and sunset at 19:26 -03.

Sunshine

In January, the average sunshine is 8.4h.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index in Arroio do Meio. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in January interprets into the following advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.