January weather forecast
Puerto Iguazú, Argentina

Kicking off the year, Puerto Iguazú, Argentina welcomes January with warm temperatures and abundant humidity. Typically, daytime highs peak up to 31.2°C (88.2°F) while the nights cool to around 20.9°C (69.6°F). Residents and tourists alike can anticipate spending their days nestled amidst the balmy air, with relative humidity levels resting at around 75%. January sees a blend of rain and shine with a generous rainfall of 172mm (6.77") spread evenly throughout the month. Despite these tropical downpours, the sun still manages to shine for up to 6.4 hours per day.

Temperature

January is Puerto Iguazú's warmest month, registering average high temperatures of 31.2°C (88.2°F) and lows of 20.9°C (69.6°F).

Heat index

For January, the heat index is appraised at a blisteringly hot 40°C (104°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. 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.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in January in Puerto Iguazú, Argentina, is 75%.

Rainfall

In Puerto Iguazú, Argentina, in January, it is raining for 9.3 days, with typically 172mm (6.77") of accumulated precipitation. In Puerto Iguazú, during the entire year, the rain falls for 98.5 days and collects up to 1899mm (74.76") of precipitation.

Daylight

In January, the average length of the day in Puerto Iguazú is 13h and 31min.
On the first day of January in Puerto Iguazú, sunrise is at 05:50 and sunset at 19:32. On the last day of the month, sunrise is at 06:13 and sunset at 19:30 -03.

Sunshine

In January, the average sunshine in Puerto Iguazú is 6.4h.