January weather forecastMarataízes, Brazil

Weather in January

January, the same as December, is a moderately hot summer month in Marataízes, Brazil, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 29.7°C (85.5°F).

Temperature

In January, Marataízes experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 29.7°C (85.5°F), closely mirroring the climate in December. The nighttime temperature dips to a still warm 23°C (73.4°F) on average during January.

Heat index

For January, the heat index is evaluated at a fiery hot 36°C (96.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Marataízes, the average relative humidity in January is 79%.

Rainfall

In January, in Marataízes, the rain falls for 10.7 days. Throughout January, 69mm (2.72") of precipitation is accumulated. In Marataízes, during the entire year, the rain falls for 164.4 days and collects up to 657mm (25.87") of precipitation.

Sea temperature

In January, the average sea temperature is 24.9°C (76.8°F).
Note: While a person's sensitivity to cold is personal, factors like sunshine, wind, and the temperature can influence their comfort in 24.9°C (76.8°F) waters. Olympians, for perspective, swim in waters between 25°C (77°F) and 28°C (82.4°F).

Daylight

The average length of the day in January in Marataízes is 13h and 14min.
On the first day of January in Marataízes, sunrise is at 05:05 and sunset at 18:28. On the last day of the month, sunrise is at 05:25 and sunset at 18:28 -03.

Sunshine

In January, the average sunshine is 9h.

UV index

The months with the highest UV index in Marataízes are January and February, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 7 in January translates into the following instructions:
Dodge overexposure. Fair-skinned people can get singed 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. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Notice! The Sun's UV exposure elevates with sand and water reflections.