February weather forecast
Rio de Janeiro, Brazil

Following January, February exhibits slight changes in the South-American city's weather conditions. Although still high, the rainfall decreases to 96mm (3.78") while the sunshine hours register a slight increase compared to the previous month. Heat lovers can expect a small rise in temperature with highs averaging around 29.7°C (85.5°F). The month of February invites a sizable crowd to Rio's beaches with the Carnaval taking place amidst a warm and slightly more sunny ambiance. It offers an idyllic period for tourists seeking to enjoy the famous outdoor festivities that the city has to offer.

Temperature

The warmest period in Rio de Janeiro tends to be February, when average temperatures fluctuate between a high of 29.7°C (85.5°F) and a low of 23.5°C (74.3°F).

Heat index

For most parts of February, the heat index is estimated at a very hot 36°C (96.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Rio de Janeiro, Brazil, the average relative humidity in February is 78%.

Rainfall

In February, in Rio de Janeiro, the rain falls for 15.8 days. Throughout February, 96mm (3.78") of precipitation is accumulated. Throughout the year, in Rio de Janeiro, there are 192.5 rainfall days, and 812mm (31.97") of precipitation is accumulated.

Sea temperature

In Rio de Janeiro, Brazil, the average seawater temperature in February is 25.3°C (77.5°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.

Daylight

In Rio de Janeiro, the average length of the day in February is 12h and 51min.
On the first day of February, sunrise is at 05:32 and sunset at 18:40. On the last day of the month, sunrise is at 05:48 and sunset at 18:21 -03.

Sunshine

With an average of 8.8h of sunshine, February has the most sunshine of the year.

UV index

In Rio de Janeiro, the average daily maximum UV index in February is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In February, the UV index of 6 transforms into the following advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take note! The UV strength of the Sun elevates when reflected off water and sand.