Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
With the transition into December, Santa Catalina experiences a subtle uplift in average high-temperatures, adjusting from a moderately hot 26.7°C (80.1°F) in November to a hot 30.3°C (86.5°F). With a notable disparity from daily peak temperatures, the average low-temperature settles at an enjoyable 16.3°C (61.3°F) throughout December.Heat index
December's mean heat index is estimated at a hot 34°C (93.2°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In Santa Catalina, the average relative humidity in December is 61%.Rainfall
In Santa Catalina, in December, it is raining for 9.8 days, with typically 76mm (2.99") of accumulated precipitation. Throughout the year, there are 111.9 rainfall days, and 698mm (27.48") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of the month, sunrise is at 05:32 and sunset at 19:46. On the last day of December, in Santa Catalina, sunrise is at 05:42 and sunset at 20:04 -03.
Sunshine
December has the most sunshine of the year, with an average of 10.8h of sunshine.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 value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: During December, 6 as the daily maximum UV index converts into the following advice:
Deflect overexposure. Sun protection is a necessity. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in December?
What is the average humidity in December?
How many days does it rain in December?
When are the longest days?
How many hours of daylight does Santa Catalina have in December?
What time are sunrise and sunset in December?
What month has the most sunshine?
How long on average sun shines in December?
What are the months with the highest UV index?
What is the UV index reading in December?
Average temperature in December
Santa Catalina, Uruguay
- Average high temperature in December: 30.3°C
The warmest month (with the highest average high temperature) is January (32.4°C).
The month with the lowest average high temperature is July (15.1°C).
- Average low temperature in December: 16.3°C
The month with the highest average low temperature is January (18.6°C).
The coldest month (with the lowest average low temperature) is July (6.9°C).
Average pressure in December
Santa Catalina, 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
Santa Catalina, Uruguay
- Average wind speed in December: 11.4km/h
The windiest month (with the highest average wind speed) is September (13.2km/h).
The calmest month (with the lowest average wind speed) is April (10.8km/h).
Average humidity in December
Santa Catalina, Uruguay
- Average humidity in December: 61%
The months with the highest relative humidity are May and July (82%).
The month with the lowest relative humidity is January (57%).
Average rainfall in December
Santa Catalina, Uruguay
- Average rainfall in December: 76mm
The wettest month (with the highest rainfall) is February (80mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in December
Santa Catalina, Uruguay
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is October (11.7 days).
The month with the least rainy days is June (7 days).
Average daylight in December /
Average sunshine in December
Santa Catalina, Uruguay
- Average daylight in December: 14h and 2min
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: 10h and 5min
The month with the most sunshine is December (Average sunshine: 10h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in December
Santa Catalina, Uruguay
- Average sunshine days in December: 19.9 days
The month with the most sunshine days is June (21.7 days).
The month with the least sunshine days is September (17.6 days).
Average UV index in December
Santa Catalina, Uruguay
- Average UV index in December: 6
The months with the highest UV index are January, February, March, November and December (UV index 6).
The month with the lowest UV index is May (UV index 3).
Average cloud cover in December
Santa Catalina, Uruguay
- Average cloud cover in December: 22
The month with the most cloud cover is May (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in December
Santa Catalina, Uruguay
- Average visibility in December: 9km
The month with the highest visibility is January (10km).
The month with the lowest visibility is May (8km).
