January weather forecast
Rivera, Uruguay

The year kicks off with balmy weather in Rivera, Uruguay. January sees the highest average monthly temperatures with highs reaching up to 30.5°C (86.9°F), a characteristic emblematic of Rivera's summer. Compared to February, January is slightly more humid, conditions prevalent with summer season. Even though temperatures can soar, there's ample solace under the sun with a relative humidity of 67%. A gradual shift can be noticed from the warmth of January to the milder conditions of February.

Temperature

With average high temperatures of 30.5°C (86.9°F) and lows of 18.5°C (65.3°F), January is the warmest month.

Heat index

The heat index for January is calculated to be a very hot 35°C (95°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, 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 largely significant for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The average relative humidity in January is 67%.

Rainfall

In Rivera, in January, during 12.6 rainfall days, 87mm (3.43") of precipitation is typically accumulated. In Rivera, during the entire year, the rain falls for 133.2 days and collects up to 920mm (36.22") of precipitation.

Daylight

In Rivera, the average length of the day in January is 13h and 53min.
On the first day of the month, sunrise is at 05:42 and sunset at 19:49. On the last day of January, sunrise is at 06:08 and sunset at 19:43 -03.

Sunshine

In January, the average sunshine is 9.5h.

UV index

The months with the highest UV index are January through March, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in January interprets into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.