October weather forecast
Itaguaru, Brazil

October, the same as September, in Itaguaru, Brazil, is another tropical spring month, with an average temperature fluctuating between 20.9°C (69.6°F) and 32°C (89.6°F).

Temperature

The onset of October notes an average high-temperature of a still hot 32°C (89.6°F), subtly shifted from September's 34.1°C (93.4°F). During October, Itaguaru experiences a consistent low-temperature average of 20.9°C (69.6°F).

Heat index

October's mean heat index is estimated at a torrid 38°C (100.4°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Itaguaru, Brazil, the average relative humidity in October is 63%.

Rainfall

In Itaguaru, in October, during 20.1 rainfall days, 97mm (3.82") of precipitation is typically accumulated. In Itaguaru, during the entire year, the rain falls for 205.3 days and collects up to 1139mm (44.84") of precipitation.

Daylight

The average length of the day in October in Itaguaru is 12h and 28min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:15. On the last day of October, sunrise is at 05:41 and sunset at 18:22 -03.

Sunshine

In October, the average sunshine is 9.2h.

UV index

In Itaguaru, the average daily maximum UV index in October is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 during October leads to these advisories:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.