January weather forecast
Plácido de Castro, Brazil

January, like December, in Plácido de Castro, Brazil, is a moderately hot summer month, with an average temperature varying between 22.3°C (72.1°F) and 29.2°C (84.6°F).

Temperature

January, having an average high-temperature of 29.2°C (84.6°F) and an average low-temperature of 22.3°C (72.1°F), is the coldest month.

Heat index

Throughout January, the heat index is evaluated at a sweltering 38°C (100.4°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In January, the average relative humidity is 89%.

Rainfall

In January, the rain falls for 29 days. Throughout January, 190mm (7.48") of precipitation is accumulated. Throughout the year, there are 233.4 rainfall days, and 1251mm (49.25") of precipitation is accumulated.

Daylight

In January, the average length of the day is 12h and 39min.
On the first day of the month, sunrise is at 05:10 and sunset at 17:53. On the last day of January, sunrise is at 05:25 and sunset at 17:58 -05.

Sunshine

In Plácido de Castro, the average sunshine in January is 6h.

UV index

January through June and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In January, a daily UV index of 6 turns into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.