January weather forecast
Japi, Brazil

January, like December, is another tropical summer month in Japi, Brazil, with an average temperature fluctuating between 31.7°C (89.1°F) and 22.8°C (73°F).

Temperature

The commencement of January records an average high-temperature of a still tropical 31.7°C (89.1°F), barely varying from December's 31.5°C (88.7°F). Throughout January, the temperature in Japi tends to fall to a consistent average low of 22.8°C (73°F).

Heat index

For most parts of January, the heat index is appraised at a scorching 40°C (104°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. 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.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In January, the average relative humidity is 72%.

Rainfall

In January, the rain falls for 15.7 days. Throughout January, 34mm (1.34") of precipitation is accumulated. In Japi, during the entire year, the rain falls for 205.7 days and collects up to 444mm (17.48") of precipitation.

Daylight

In January, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 05:12 and sunset at 17:41. On the last day of January, in Japi, sunrise is at 05:25 and sunset at 17:48 -03.

Sunshine

In January, the average sunshine in Japi, Brazil, is 6.5h.

UV index

The months with the highest UV index in Japi are January, February and October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 in January converts into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. 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.