December weather forecastSan Ignacio, Argentina

Weather in December

The first month of the summer, December, is a hot month in San Ignacio, Argentina, with an average temperature fluctuating between 20.5°C (68.9°F) and 31.5°C (88.7°F).

Temperature

The introduction of December sees an average high-temperature of a tropical 31.5°C (88.7°F), hardly deviating from November. December brings an average low-temperature of 20.5°C (68.9°F) to San Ignacio.

Heat index

During December, the heat index is evaluated at a blistering 40°C (104°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Data suggests that the heat index is set for environments in shade and with a light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The least humid month in San Ignacio, Argentina, is December, with an average relative humidity of 73%.

Rainfall

In San Ignacio, in December, it is raining for 17.4 days, with typically 102mm (4.02") of accumulated precipitation. Throughout the year, in San Ignacio, there are 154.8 rainfall days, and 946mm (37.24") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 13h and 48min of daylight.
On the first day of the month, sunrise is at 05:39 and sunset at 19:23. On the last day of December, in San Ignacio, sunrise is at 05:50 and sunset at 19:40 -03.

Sunshine

The months with the most sunshine in San Ignacio, Argentina, are November and December, with an average of 10.6h of sunshine.

UV index

The months with the highest UV index in San Ignacio are January, February and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In December, the UV index of 7 transforms into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.