January weather forecast
Andorinha, Brazil

January, the same as December, in Andorinha, Brazil, is a hot summer month, with temperature in the range of an average low of 20.5°C (68.9°F) and an average high of 32.1°C (89.8°F).

Temperature

The onset of January brings an average high-temperature of a still tropical 32.1°C (89.8°F), nearly matching the December temperature. In the month of January, the nighttime temperature dips to a steady average of 20.5°C (68.9°F).

Heat index

The heat index in January is estimated at a scorching 40°C (104°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of 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. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In January, the average relative humidity is 67%.

Rainfall

In Andorinha, in January, during 14.2 rainfall days, 35mm (1.38") of precipitation is typically accumulated. In Andorinha, during the entire year, the rain falls for 146.7 days and collects up to 349mm (13.74") of precipitation.

Daylight

The average length of the day in January is 12h and 39min.
On the first day of January, sunrise is at 05:21 and sunset at 18:04. On the last day of the month, sunrise is at 05:35 and sunset at 18:09 -03.

Sunshine

With an average of 9.5h of sunshine, January has the most sunshine of the year.

UV index

The months with the highest UV index are January through March, October and November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 7 in January converts into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.