January weather forecast
Caçu, Brazil

January, the same as December, is another warm summer month in Caçu, Brazil, with an average temperature ranging between max 28.8°C (83.8°F) and min 20.3°C (68.5°F).

Temperature

The average high-temperature for January is a still warm 28.8°C (83.8°F), closely aligning with the temperature of the preceding month. In the month of January, the nighttime temperature in Caçu dips to a steady average of 20.3°C (68.5°F).

Heat index

The heat index in January is estimated at a sweltering 35°C (95°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The average relative humidity in January is 85%.

Rainfall

In Caçu, in January, during 27.1 rainfall days, 182mm (7.17") of precipitation is typically accumulated. In Caçu, during the entire year, the rain falls for 197.9 days and collects up to 1210mm (47.64") of precipitation.

Daylight

In January, the average length of the day is 13h and 6min.
On the first day of the month, sunrise is at 05:51 and sunset at 19:04. On the last day of January, in Caçu, sunrise is at 06:09 and sunset at 19:05 -03.

Sunshine

With an average of 7h of sunshine, January has the least sunshine of the year.

UV index

The average daily maximum UV index in January is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index, 6 during January, leads to the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.