December weather forecastGreffin, Haiti
December
Weather in December
December, the first month of the winter in Greffin, is also a moderately hot month, with an average temperature ranging between max 27.8°C (82°F) and min 18.6°C (65.5°F).Temperature
The start of December sees the average high-temperature at a still warm 27.8°C (82°F), showing little difference from November's 28.2°C (82.8°F). The nighttime temperature in Greffin dips to an enjoyable 18.6°C (65.5°F) on average during December.Heat index
The average heat index in December is evaluated at a tropical 31°C (87.8°F). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
The average relative humidity in December in Greffin is 76%.Rainfall
In Greffin, in December, during 10.5 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, in Greffin, there are 228 rainfall days, and 913mm (35.94") of precipitation is accumulated.Daylight
December has the shortest days of the year in Greffin, Haiti, with an average of 11h and 0min of daylight.On the first day of December in Greffin, sunrise is at 06:05 and sunset at 17:11. On the last day of the month, sunrise is at 06:20 and sunset at 17:23 EST.
Sunshine
In Greffin, the average sunshine in December is 7.3h.UV index
The months with the lowest UV index in Greffin are January through May, July through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, a daily UV index of 6 turns into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Greffin, Haiti
- Average high temperature in December: 27.8°C
The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (27.6°C).
- Average low temperature in December: 18.6°C
The month with the highest average low temperature is August (21.3°C).
The coldest month (with the lowest average low temperature) is January (18.2°C).
Average pressure in December
Greffin, Haiti
- Average pressure in December: 1015.2mbar
The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is October (1012.5mbar).
Average wind speed in December
Greffin, Haiti
- Average wind speed in December: 7.9km/h
The windiest month (with the highest average wind speed) is June (9.2km/h).
The calmest month (with the lowest average wind speed) is September (6.3km/h).
Average humidity in December
Greffin, Haiti
- Average humidity in December: 76%
The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is February (72%).
Average rainfall in December
Greffin, Haiti
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is September (144mm).
The driest month (with the least rainfall) is January (12mm).
Average rainfall days in December
Greffin, Haiti
- Average rainfall days in December: 10.5 days
The months with the highest number of rainy days are April and October (24.4 days).
The month with the least rainy days is January (9.9 days).
Average daylight in December /
Average sunshine in December
Greffin, Haiti
- Average daylight in December: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in December: 7h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 7h and 12min).
Average sunshine days in December
Greffin, Haiti
- Average sunshine days in December: 19 days
The month with the most sunshine days is December (19 days).
The month with the least sunshine days is April (3.3 days).
Average UV index in December
Greffin, Haiti
- Average UV index in December: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 6).
Average cloud cover in December
Greffin, Haiti
- Average cloud cover in December: 21
The month with the most cloud cover is April (Cloud cover 35).
The month with the least cloud cover is December (Cloud cover 21).
Average visibility in December
Greffin, Haiti
- Average visibility in December: 9km
The months with the highest visibility are February, March and June (10km).
The months with the lowest visibility are January, April, May, July, August, September, October, November and December (9km).
