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
At the start of December, Rosalie's average high-temperature reaches a still moderately hot 27°C (80.6°F), subtly different from the preceding month. Throughout the nights in December, Rosalie notes an average low of 25.3°C (77.5°F), a small dip from the daytime peak.Heat index
The heat index in December is calculated to be 29°C (84.2°F). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The average relative humidity in December is 76%.Rainfall
In Rosalie, Dominica, during December, the rain falls for 18.3 days and regularly aggregates up to 38mm (1.5") of precipitation. In Rosalie, Dominica, during the entire year, the rain falls for 221.9 days and collects up to 570mm (22.44") of precipitation.Daylight
The month with the shortest days is December, with an average of 11h and 12min of daylight.On the first day of December, sunrise is at 06:15 and sunset at 17:32. On the last day of the month, sunrise is at 06:31 and sunset at 17:45 AST.
Sunshine
With an average of 6.6h of sunshine, December has the least sunshine of the year in Rosalie.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Rosalie. The months with the lowest UV index in Rosalie are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 7 leads to the following instructions:
Guard against overexposure. Protection from sun-induced harm is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What is the average December temperature in Rosalie?
What is the average humidity in December in Rosalie?
How much does it rain in Rosalie in December?
What is the month with the shortest days in Rosalie?
What is the average length of the day in December in Rosalie?
When is the sunrise / sunset in December in Rosalie?
What is the month with the least sunshine in Rosalie?
How many hours of sunshine does Rosalie have in December?
When is the highest UV index in Rosalie?
When is the lowest UV index in Rosalie?
How high is the UV index in December in Rosalie?
Average temperature in December
Rosalie, Dominica
- Average high temperature in December: 27°C
The warmest months (with the highest average high temperature) are August, September and October (28.6°C).
The months with the lowest average high temperature are February and March (26.3°C).
- Average low temperature in December: 25.3°C
The month with the highest average low temperature is September (27.1°C).
The coldest month (with the lowest average low temperature) is March (24.1°C).
Average pressure in December
Rosalie, Dominica
- Average pressure in December: 1014.2mbar
The month with the highest atmospheric pressure is June (1015.6mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).
Average wind speed in December
Rosalie, Dominica
- Average wind speed in December: 25.3km/h
The windiest month (with the highest average wind speed) is January (27.2km/h).
The calmest month (with the lowest average wind speed) is October (20.2km/h).
Average humidity in December
Rosalie, Dominica
- Average humidity in December: 76%
The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January, February and March (75%).
Average rainfall in December
Rosalie, Dominica
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is August (78mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days in December
Rosalie, Dominica
- Average rainfall days in December: 18.3 days
The month with the highest number of rainy days is October (21.5 days).
The month with the least rainy days is June (14.8 days).
Average daylight in December /
Average sunshine in December
Rosalie, Dominica
- Average daylight in December: 11h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in December: 6h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in December
Rosalie, Dominica
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is March (9.8 days).
The month with the least sunshine days is April (5.9 days).
Average UV index in December
Rosalie, Dominica
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Rosalie, Dominica
- Average cloud cover in December: 39
The months with the most cloud cover are June and July (Cloud cover 44).
The month with the least cloud cover is February (Cloud cover 33).
Average visibility in December
Rosalie, Dominica
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Rosalie, Dominica
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