January weather forecast
Alto Longá, Brazil

January, like December, is another hot summer month in Alto Longá, Brazil, with an average temperature varying between 22.9°C (73.2°F) and 31.8°C (89.2°F).

Temperature

In the transition from December to January, Alto Longá reports an average high-temperature of a still tropical 31.8°C (89.2°F), indicating a close resemblance to the prior month. Alto Longá witnesses a consistent average low-temperature of 22.9°C (73.2°F) throughout January.

Heat index

January's heat index is appraised at a scorching 42°C (107.6°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in January is 76%.

Rainfall

In January, in Alto Longá, the rain falls for 26.3 days. Throughout January, 232mm (9.13") of precipitation is accumulated. In Alto Longá, during the entire year, the rain falls for 220.8 days and collects up to 1560mm (61.42") of precipitation.

Daylight

In Alto Longá, the average length of the day in January is 12h and 23min.
On the first day of January, sunrise is at 05:39 and sunset at 18:04. On the last day of the month, sunrise is at 05:51 and sunset at 18:12 -03.

Sunshine

In Alto Longá, the average sunshine in January is 8.6h.

UV index

In January, the average daily maximum UV index in Alto Longá is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the maximum UV index of 7 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.