October weather forecast
Goiânia, Brazil

October introduces more pronounced weather changes in Goiânia. Despite the drop in temperature peaks to 31°C (87.8°F), the humidity increases to 65%. October experiences an abrupt surge in precipitation, with 167mm (6.57") falling over 12 days. The downward trend continues for sunshine hours, decreasing to 6.1 hours, despite the daylight duration remaining relatively constant at 12.5 hours. In the foreseeable November weather, expect a further increase in humidity, rainfall and a decrease in the hours of sunshine.

Temperature

Welcoming October, Goiânia notes an average high-temperature of a still hot 31°C (87.8°F), nearly consistent with September's 31.9°C (89.4°F). An average low-temperature of 19.5°C (67.1°F) is observed during October nights in Goiânia, Brazil.

Heat index

The average heat index in October is computed to be a very hot 36°C (96.8°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In October, the average relative humidity in Goiânia is 65%.

Rainfall

In Goiânia, in October, it is raining for 12 days, with typically 167mm (6.57") of accumulated precipitation. Throughout the year, there are 116 rainfall days, and 1571mm (61.85") of precipitation is accumulated.

Daylight

In Goiânia, the average length of the day in October is 12h and 29min.
On the first day of October in Goiânia, sunrise is at 05:58 and sunset at 18:14. On the last day of the month, sunrise is at 05:39 and sunset at 18:21 -03.

Sunshine

The average sunshine in October in Goiânia is 6.1h.