January weather forecastPacajus, Brazil

Weather in January

January, the same as December, in Pacajus, Brazil, is a hot summer month, with an average temperature fluctuating between 24°C (75.2°F) and 31.4°C (88.5°F).

Temperature

Pacajus's January showcases an average high-temperature of a still tropical 31.4°C (88.5°F), hardly distinct from December's 31.9°C (89.4°F). In Pacajus, an average nighttime temperature of 24°C (75.2°F) is expected during January.

Heat index

January's mean heat index is appraised at an extremely hot 40°C (104°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In January, the average relative humidity is 75%.

Rainfall

In Pacajus, in January, during 18.4 rainfall days, 65mm (2.56") of precipitation is typically accumulated. Throughout the year, there are 183.1 rainfall days, and 511mm (20.12") of precipitation is accumulated.

Daylight

In January, the average length of the day in Pacajus is 12h and 20min.
On the first day of the month, sunrise is at 05:26 and sunset at 17:48. On the last day of January, in Pacajus, sunrise is at 05:38 and sunset at 17:56 -03.

Sunshine

In Pacajus, the average sunshine in January is 7h.

UV index

January through March, May through December, with an average maximum UV index of 7, are months with the highest UV index in Pacajus, Brazil. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 7 in January suggests the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.