December weather forecastCarmelo, Uruguay
December
Weather in December
December marks the start of the summer season in Carmelo, bringing warmer weather with an average high temperature of 29.5°C (85.1°F). It observes the longest sunshine duration, averaging 14.4 hours of daylight, providing ample time for outdoor activities. However, December also observes higher amounts of rainfall compared to November. The wind speed lessens slightly, resulting in balmy afternoons. By this month, the weather begins to transition towards the peak summer of the approaching year.Temperature
The shift into December is characterized by a subtle rise in the average high-temperature, transitioning from November's 25.8°C (78.4°F) to a still warm 29.5°C (85.1°F). A sharp reduction from the daytime highs is witnessed during December, with nighttime temperatures averaging a low of 17.4°C (63.3°F).Heat index
The heat index for December is appraised at a hot 32°C (89.6°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. 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. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In December, the average relative humidity is 59%.Rainfall
In Carmelo, in December, it is raining for 8.5 days, with typically 42mm (1.65") of accumulated precipitation. Throughout the year, in Carmelo, there are 94.7 rainfall days, and 365mm (14.37") of precipitation is accumulated.Snowfall
January through June, August through December are months without snowfall.Daylight
The month with the longest days is December, with an average of 14h and 24min of daylight.On the first day of the month, sunrise is at 05:34 and sunset at 19:50. On the last day of December, in Carmelo, sunrise is at 05:45 and sunset at 20:07 -03.
Sunshine
The month with the most sunshine is December, with an average of 11.2h of sunshine.UV index
In Carmelo, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the UV index of 6 transforms into the following advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Carmelo, Uruguay
- Average high temperature in December: 29.5°C
The warmest month (with the highest average high temperature) is January (31.2°C).
The month with the lowest average high temperature is July (14.3°C).
- Average low temperature in December: 17.4°C
The month with the highest average low temperature is January (19.4°C).
The coldest month (with the lowest average low temperature) is July (7.8°C).
Average pressure in December
Carmelo, Uruguay
- Average pressure in December: 1010.9mbar
The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1010.9mbar).
Average wind speed in December
Carmelo, Uruguay
- Average wind speed in December: 12.1km/h
The windiest month (with the highest average wind speed) is September (14.5km/h).
The calmest month (with the lowest average wind speed) is March (11.9km/h).
Average humidity in December
Carmelo, Uruguay
- Average humidity in December: 59%
The months with the highest relative humidity are May and July (77%).
The month with the lowest relative humidity is January (57%).
Average rainfall in December
Carmelo, Uruguay
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is November (45mm).
The driest month (with the least rainfall) is September (22mm).
Average rainfall days in December
Carmelo, Uruguay
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is October (9.4 days).
The month with the least rainy days is August (6.3 days).
Average snowfall days in December
Carmelo, Uruguay
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is July (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Carmelo, Uruguay
- Average daylight in December: 14h and 24min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 11h and 12min
The month with the most sunshine is December (Average sunshine: 11h and 12min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in December
Carmelo, Uruguay
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is August (22.7 days).
The month with the least sunshine days is February (18.7 days).
Average UV index in December
Carmelo, Uruguay
- Average UV index in December: 6
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in December
Carmelo, Uruguay
- Average cloud cover in December: 18
The month with the most cloud cover is July (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 16).
Average visibility in December
Carmelo, Uruguay
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June, August, September, November and December (10km).
The months with the lowest visibility are May, July and October (9km).





