October introduces significantly warmer daytime temperatures averaging at 28.1°C (82.6°F), accompanied by cool nights with temperatures of around 16.9°C (62.4°F). With 261mm (10.28") of monthly rainfall, October turns out to be the wettest month of the year in
Puerto Iguazú while the humidity level remains constant at 75%. There is an increase in daily sunshine, reaching up to 5.4 hours on an average, coupled with extended daylight hours of around 12.7 hours.
Temperature
The shift into October finds Puerto Iguazú,
Argentina, at an average high-temperature of a still warm 28.1°C (82.6°F), closely comparable to
September's conditions. An average low-temperature of 16.9°C (62.4°F) is common in Puerto Iguazú during the nights of October.
Heat index
For most parts of October, the heat index is appraised at a tropical 32°C (89.6°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Note that heat index values are valued for light wind and location in the shade. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in October is 75%.
Rainfall
The month with the most rainfall is October, when the rain falls for 11 days and typically aggregates up to 261mm (10.28") of precipitation.
Daylight
In October, the average length of the day is 12h and 43min.
On the first day of the month, sunrise is at 06:17 and sunset at 18:38. On the last day of October, in Puerto Iguazú, sunrise is at 05:49 and sunset at 18:54 -03.
Sunshine
In October, the average sunshine is 5.4h.