January weather forecast
Serra Negra do Norte, Brazil

January, like December, is another tropical summer month in Serra Negra do Norte, Brazil, with an average temperature ranging between max 34.5°C (94.1°F) and min 24.3°C (75.7°F).

Temperature

January denotes a minimal variation in the average high-temperature to a still tropical 34.5°C (94.1°F) from December's 34.9°C (94.8°F). Nighttime temperature in Serra Negra do Norte experiences an average drop to a warm 24.3°C (75.7°F) in January.

Heat index

During January, the heat index is appraised at a blisteringly hot 42°C (107.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel 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 exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. 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. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in January is 56%.

Rainfall

In January, the rain falls for 13.4 days. Throughout January, 41mm (1.61") of precipitation is accumulated. In Serra Negra do Norte, Brazil, during the entire year, the rain falls for 122.6 days and collects up to 442mm (17.4") of precipitation.

Daylight

The average length of the day in January is 12h and 28min.
On the first day of January in Serra Negra do Norte, sunrise is at 05:17 and sunset at 17:48. On the last day of the month, sunrise is at 05:30 and sunset at 17:54 -03.

Sunshine

In January, the average sunshine in Serra Negra do Norte is 9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Serra Negra do Norte. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 7 in January transforms into this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.