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
Weather in December
Temperature
December's onset witnesses a minor shift in the average high-temperature, moving from a warm 26.7°C (80.1°F) in November to a hot 30.3°C (86.5°F). The significant decline in Santa Catalina's temperature, from day to night, averages of 16.3°C (61.3°F) in December.Heat index
December's 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.Take into consideration that the heat index values are calculated for shade and light wind conditions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
In December, the average relative humidity is 61%.Rainfall
In Santa Catalina, in December, during 9.8 rainfall days, 76mm (2.99") of precipitation is typically accumulated. 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, sunrise is at 05:42 and sunset at 20:04 -03.
Sunshine
With an average of 10.8h of sunshine, December has the most sunshine of the year.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 the average person.Note: In December, a daily UV index of 6 turns into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during December?
What is the average humidity in December?
How much does it rain in December?
When are the longest days?
What is the average length of the day in December?
When are sunrise and sunset in December in Santa Catalina?
What month has the most sunshine?
How many hours of sunshine does Santa Catalina have in December?
What are the months with the highest UV index in Santa Catalina?
What is the UV index intensity 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).
Santa Catalina, Uruguay
Weather forecast for your location
2. Allow the app to use your location