January weather forecast
Oiapoque, Brazil

January, the same as December, is a moderately hot winter month in Oiapoque, Brazil, with an average temperature fluctuating between 28.4°C (83.1°F) and 22°C (71.6°F).

Temperature

Oiapoque records an average high-temperature of a still warm 28.4°C (83.1°F) in January, closely mirroring the climate of the previous month. In Oiapoque, an average nighttime temperature of 22°C (71.6°F) is expected during January.

Heat index

During January, the heat index is calculated to be a fiery hot 35°C (95°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In January, the average relative humidity is 88%.

Rainfall

In Oiapoque, during January, the rain falls for 25.4 days and regularly aggregates up to 92mm (3.62") of precipitation. In Oiapoque, during the entire year, the rain falls for 270.6 days and collects up to 1131mm (44.53") of precipitation.

Daylight

In Oiapoque, the average length of the day in January is 11h and 56min.
On the first day of January, sunrise is at 06:33 and sunset at 18:27. On the last day of the month, sunrise is at 06:41 and sunset at 18:39 -03.

Sunshine

In January, the average sunshine is 5.2h.

UV index

January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 6 in January translates into this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.