January weather forecast
Riachão do Dantas, Brazil

January, the same as December, in Riachão do Dantas, Brazil, is another hot summer month, with an average temperature varying between 21.7°C (71.1°F) and 31.8°C (89.2°F).

Temperature

The dawn of January sees an average high-temperature of a still tropical 31.8°C (89.2°F), on par with December's climate. Throughout the month of January, Riachão do Dantas witnesses an average temperature of 21.7°C (71.1°F).

Heat index

The heat index in January is evaluated at a scorching 41°C (105.8°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

January through March and December, with an average relative humidity of 73%, are the least humid months in Riachão do Dantas.

Rainfall

In Riachão do Dantas, in January, it is raining for 15 days, with typically 31mm (1.22") of accumulated precipitation. In Riachão do Dantas, Brazil, during the entire year, the rain falls for 214 days and collects up to 444mm (17.48") of precipitation.

Daylight

In Riachão do Dantas, the average length of the day in January is 12h and 41min.
On the first day of January, sunrise is at 05:11 and sunset at 17:57. On the last day of the month, sunrise is at 05:26 and sunset at 18:02 -03.

Sunshine

With an average of 8.9h of sunshine, January has the most sunshine of the year.

UV index

January through March, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In January, a daily UV index of 7 turns into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.