February weather forecast
Porto Velho, Brazil

February, the last month of the summer in Porto Velho, is another warm month, with an average temperature ranging between max 29.3°C (84.7°F) and min 22.3°C (72.1°F).

Temperature

February, on average, is the coldest month, registering a high temperature of 29.3°C (84.7°F) and a low of 22.3°C (72.1°F).

Heat index

During February, the heat index is estimated at a torrid 39°C (102.2°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

With an average relative humidity of 92%, February is the most humid month in Porto Velho.

Rainfall

In Porto Velho, during February, the rain falls for 26.8 days and regularly aggregates up to 230mm (9.06") of precipitation. Throughout the year, there are 251.1 rainfall days, and 1471mm (57.91") of precipitation is accumulated.

Daylight

In Porto Velho, the average length of the day in February is 12h and 23min.
On the first day of the month, sunrise is at 06:14 and sunset at 18:43. On the last day of February, in Porto Velho, sunrise is at 06:19 and sunset at 18:36 -04.

Sunshine

The month with the least sunshine is February, with an average of 4.8h of sunshine.

UV index

January through April 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 health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 during February translates into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.