January weather forecast
Goiana, Brazil

January, like December, is a hot summer month in Goiana, Brazil, with an average temperature ranging between max 30.6°C (87.1°F) and min 24.1°C (75.4°F).

Temperature

Goiana's weather in January displays an average high-temperature of a still tropical 30.6°C (87.1°F), showing minor disparity from December's 30.5°C (86.9°F). The nighttime temperature in Goiana dips to a warm 24.1°C (75.4°F) on average during January.

Heat index

The heat index value for January is computed to be a sweltering 37°C (98.6°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. 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 the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In January, the average relative humidity in Goiana is 73%.

Rainfall

In January, the rain falls for 13.8 days. Throughout January, 24mm (0.94") of precipitation is accumulated. In Goiana, during the entire year, the rain falls for 200.7 days and collects up to 437mm (17.2") of precipitation.

Daylight

In January, the average length of the day is 12h and 30min.
On the first day of January in Goiana, Brazil, sunrise is at 05:06 and sunset at 17:40. On the last day of the month, sunrise is at 05:20 and sunset at 17:46 -03.

Sunshine

The average sunshine in January is 7.4h.

UV index

January through April, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 7 suggests this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.