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 sea temperature 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 in Saint-Marc brings an average high-temperature of a still moderately hot 27.7°C (81.9°F), nearly identical to the preceding month. In Saint-Marc, December is marked by an average low-temperature of 20.5°C (68.9°F).Heat index
In December, the average heat index is estimated at a hot 31°C (87.8°F). If one remains active during constant exposure, it might cause exhaustion and heat cramps.Realize that the values for the heat index are set for shaded places and light winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In December, the average relative humidity in Saint-Marc, Haiti, is 79%.Rainfall
The months with the least rainfall in Saint-Marc are January and December Rain falls for 8.5 days and accumulates 13mm (0.51") of rain.Sea temperature
In Saint-Marc, the average seawater temperature in December is 28.3°C (82.9°F).Note: In any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.
Daylight
The month with the shortest days in Saint-Marc is December, with an average of 11h and 0min of daylight.On the first day of the month, sunrise is at 06:08 and sunset at 17:11. On the last day of December, in Saint-Marc, sunrise is at 06:23 and sunset at 17:24 EST.
Sunshine
In Saint-Marc, the average sunshine in December is 7.4h.UV index
January through March, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Saint-Marc. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 6 suggests this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
Frequently asked questions
What is the average December temperature in Saint-Marc?
What is the average humidity in December in Saint-Marc?
What is the driest month in Saint-Marc?
How many days does it rain in December in Saint-Marc?
What is the sea water temperature in December in Saint-Marc?
What is the month with the shortest days in Saint-Marc?
How many hours of daylight does Saint-Marc have in December?
When are sunrise and sunset in December in Saint-Marc?
How long on average sun shines in December in Saint-Marc?
When is the lowest UV index in Saint-Marc?
What is the UV index intensity in December in Saint-Marc?
Average temperature in December
Saint-Marc, Haiti
- Average high temperature in December: 27.7°C
The warmest month (with the highest average high temperature) is July (30.7°C).
The month with the lowest average high temperature is January (27.3°C).
- Average low temperature in December: 20.5°C
The month with the highest average low temperature is July (23.5°C).
The coldest month (with the lowest average low temperature) is January (20.1°C).
Average pressure in December
Saint-Marc, Haiti
- Average pressure in December: 1015.5mbar
The month with the highest atmospheric pressure is January (1016.6mbar).
The month with the lowest atmospheric pressure is October (1012.5mbar).
Average wind speed in December
Saint-Marc, Haiti
- Average wind speed in December: 10.3km/h
The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is September (7km/h).
Average humidity in December
Saint-Marc, Haiti
- Average humidity in December: 79%
The month with the highest relative humidity is November (81%).
The months with the lowest relative humidity are March and April (74%).
Average rainfall in December
Saint-Marc, Haiti
- Average rainfall in December: 13mm
The wettest month (with the highest rainfall) is May (118mm).
The driest months (with the least rainfall) are January and December (13mm).
Average rainfall days in December
Saint-Marc, Haiti
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (25.3 days).
The month with the least rainy days is December (8.5 days).
Average sea temperature in December
Saint-Marc, Haiti
- Average sea temperature in December: 28.3°C
The best month for swimming (with the highest average sea temperature) is September (29.9°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).
Average daylight in December /
Average sunshine in December
Saint-Marc, Haiti
- Average daylight in December: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in December: 7h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 18min).
The months with the least sunshine are January and February (Average sunshine: 7h and 12min).
Average sunshine days in December
Saint-Marc, Haiti
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is September (3.2 days).
Average UV index in December
Saint-Marc, Haiti
- Average UV index in December: 6
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 6).
Average cloud cover in December
Saint-Marc, Haiti
- Average cloud cover in December: 18
The month with the most cloud cover is May (Cloud cover 32).
The month with the least cloud cover is December (Cloud cover 18).
Average visibility in December
Saint-Marc, Haiti
- 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).
Saint-Marc, Haiti
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