December weather forecastThomas, Haiti
December
Weather in December
December, the first month of the winter in Thomas, is still a warm month, with an average temperature varying between 18.6°C (65.5°F) and 27.8°C (82°F).Temperature
The average high-temperature in December, at a still warm 27.8°C (82°F), reveals a modest deviation from November's 28.2°C (82.8°F). During December, Thomas's temperature averages to a refreshing 18.6°C (65.5°F) at night.Heat index
December's heat index is computed to be a hot 31°C (87.8°F). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
In December, the average relative humidity in Thomas is 76%.Rainfall
In Thomas, in December, during 10.5 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, in Thomas, there are 227.4 rainfall days, and 904mm (35.59") of precipitation is accumulated.Daylight
With an average of 11h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:06 and sunset at 17:11. On the last day of the month, sunrise is at 06:22 and sunset at 17:24 EST.
Sunshine
The average sunshine in December in Thomas is 7.3h.UV index
The months with the lowest UV index are January through May, July through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 6 in December transforms into this advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Thomas, 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 months with the highest average low temperature are August and September (21.3°C).
The coldest month (with the lowest average low temperature) is January (18.2°C).
Average pressure in December
Thomas, 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
Thomas, 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 (6.5km/h).
Average humidity in December
Thomas, 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
Thomas, Haiti
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is May (141mm).
The driest month (with the least rainfall) is January (12mm).
Average rainfall days in December
Thomas, 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
Thomas, 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
Thomas, 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
Thomas, 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
Thomas, 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
Thomas, 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).
