October weather forecastAltair, Brazil

Weather in October

October, like September, is another tropical spring month in Altair, Brazil, with an average temperature ranging between min 20.5°C (68.9°F) and max 31.5°C (88.7°F).

Temperature

The onset of October marks an average high-temperature of a still tropical 31.5°C (88.7°F), hardly differing from September's 32.2°C (90°F). During October, Altair records an average temperature of 20.5°C (68.9°F) at night.

Heat index

The heat index value during October is computed to be a very hot 37°C (98.6°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In October, the average relative humidity is 65%.

Rainfall

In Altair, in October, during 17.8 rainfall days, 127mm (5") of precipitation is typically accumulated. Throughout the year, in Altair, there are 210.1 rainfall days, and 1237mm (48.7") of precipitation is accumulated.

Daylight

In Altair, the average length of the day in October is 12h and 35min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:14. On the last day of October, sunrise is at 05:33 and sunset at 18:25 -03.

Sunshine

In Altair, the average sunshine in October is 9h.

UV index

The months with the highest UV index in Altair are January, March through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In October, an average UV index of 6 transforms into the following instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Boost your sun resistance with garments that are densely woven yet spacious.