October weather forecast
Arco-Íris, Brazil

October, the same as September, in Arco-Íris, Brazil, is another tropical spring month, with an average temperature fluctuating between 30.8°C (87.4°F) and 19.4°C (66.9°F).

Temperature

October, with its high-temperature average of 30.8°C (87.4°F) and a low-temperature average of 19.4°C (66.9°F), is the warmest month.

Heat index

The heat index value for October is calculated to be a sweltering 36°C (96.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In October, the average relative humidity in Arco-Íris, Brazil, is 67%.

Rainfall

In Arco-Íris, in October, it is raining for 16.5 days, with typically 110mm (4.33") of accumulated precipitation. In Arco-Íris, during the entire year, the rain falls for 193.5 days and collects up to 1136mm (44.72") of precipitation.

Daylight

In October, the average length of the day is 12h and 37min.
On the first day of October in Arco-Íris, Brazil, sunrise is at 06:01 and sunset at 18:20. On the last day of the month, sunrise is at 05:38 and sunset at 18:32 -03.

Sunshine

In Arco-Íris, Brazil, the average sunshine in October is 8.8h.

UV index

January through March, July through December, with an average maximum UV index of 6, are months with the highest UV index in Arco-Íris. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: During October, 6 as the daily maximum UV index converts into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.