October weather forecast
Guajará-Mirim, Brazil

October, the same as September, in Guajará-Mirim, Brazil, is another hot spring month, with temperature in the range of an average high of 34.5°C (94.1°F) and an average low of 22.9°C (73.2°F).

Temperature

The shift into October records an average high-temperature of a hot 34.5°C (94.1°F), subtly varied from September's 36°C (96.8°F). Guajará-Mirim anticipates an average minimum temperature of 22.9°C (73.2°F) in the month of October.

Heat index

October's mean heat index is computed to be a burning hot 48°C (118.4°F). Stay mindful: Heat exhaustion and heat cramps are likely. Heatstroke could follow extended physical effort.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In October, the average relative humidity in Guajará-Mirim is 69%.

Rainfall

In Guajará-Mirim, Brazil, in October, during 20.2 rainfall days, 70mm (2.76") of precipitation is typically accumulated. In Guajará-Mirim, during the entire year, the rain falls for 228.5 days and collects up to 1170mm (46.06") of precipitation.

Daylight

The average length of the day in October is 12h and 21min.
On the first day of October, sunrise is at 06:04 and sunset at 18:16. On the last day of the month, sunrise is at 05:50 and sunset at 18:19 -04.

Sunshine

October has the most sunshine of the year in Guajará-Mirim, with an average of 9.9h of sunshine.

UV index

The months with the highest UV index in Guajará-Mirim, Brazil, are July through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 7 during October translates into the following guidance:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.