January weather forecast
Risso, Uruguay

January, like December, is another hot summer month in Risso, Uruguay, with an average temperature varying between 32.4°C (90.3°F) and 18.6°C (65.5°F).

Temperature

The warmest month is January, with an average high-temperature of 32.4°C (90.3°F) and an average low-temperature of 18.6°C (65.5°F).

Heat index

For most parts of January, the heat index is calculated to be a torrid 37°C (98.6°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

With an average relative humidity of 57%, January is the least humid month.

Rainfall

In Risso, during January, the rain falls for 8.8 days and regularly aggregates up to 68mm (2.68") of precipitation. In Risso, during the entire year, the rain falls for 111.9 days and collects up to 698mm (27.48") of precipitation.

Daylight

In January, the average length of the day is 14h and 5min.
On the first day of the month, sunrise is at 05:43 and sunset at 20:03. On the last day of January, sunrise is at 06:11 and sunset at 19:56 -03.

Sunshine

In January, the average sunshine in Risso is 10.1h.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In January, the maximum UV index of 6 translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. To cut down UV radiation exposure by about half, sport a wide-brim hat.