October weather forecast
Altamira, Brazil

October, like September, in Altamira, Brazil, is another torrid spring month, with temperature in the range of an average high of 35.7°C (96.3°F) and an average low of 23.1°C (73.6°F).

Temperature

October notes an average high-temperature of a still sweltering 35.7°C (96.3°F), subtly differing from September's 35.8°C (96.4°F). Altamira registers a pronounced decline from daytime peak temperatures, averaging a warm 23.1°C (73.6°F) lows in October.

Heat index

The heat index value for October is evaluated at a blazing hot 51°C (123.8°F). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. 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. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In October, the average relative humidity is 66%.

Rainfall

In Altamira, in October, during 17.4 rainfall days, 46mm (1.81") of precipitation is typically accumulated. In Altamira, during the entire year, the rain falls for 260.4 days and collects up to 1317mm (51.85") of precipitation.

Daylight

The average length of the day in October in Altamira, Brazil, is 12h and 11min.
On the first day of October, sunrise is at 06:14 and sunset at 18:22. On the last day of the month, sunrise is at 06:05 and sunset at 18:19 -03.

Sunshine

The average sunshine in October in Altamira is 8.8h.

UV index

The months with the highest UV index are June through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In October, the maximum UV index of 7 translates into these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.