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
December
Weather in December
Temperature
Saint Joseph experiences a recorded average high-temperature of a still warm 28.7°C (83.7°F) in December, closely aligned with November's 29.5°C (85.1°F). In Saint Joseph, the nighttime temperature shows a slight difference from the daytime high, averaging to a still moderately hot 25.4°C (77.7°F) during December.Heat index
In December, the average heat index is computed to be a hot 34°C (93.2°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Heat index determinations are made taking into account the shade and light air movements. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
The months with the highest humidity are July, November and December, with an average relative humidity of 78%.Rainfall
In Saint Joseph, during December, the rain falls for 16.6 days and regularly aggregates up to 48mm (1.89") of precipitation. In Saint Joseph, Trinidad and Tobago, during the entire year, the rain falls for 202.6 days and collects up to 599mm (23.58") of precipitation.Daylight
The month with the shortest days is December, with an average of 11h and 30min of daylight.On the first day of December, sunrise is at 06:08 and sunset at 17:41. On the last day of the month, sunrise is at 06:23 and sunset at 17:54 AST.
Sunshine
The month with the least sunshine is December, with an average of 6.7h of sunshine.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Saint Joseph, Trinidad and Tobago, are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 7 suggests this advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Saint Joseph during December?
What are the most humid months in Saint Joseph?
What is the average humidity in December in Saint Joseph?
How many days does it rain in December in Saint Joseph?
What is the month with the shortest days in Saint Joseph?
How many hours of daylight does Saint Joseph have in December?
When is the sunrise / sunset in December in Saint Joseph?
What is the month with the least sunshine in Saint Joseph?
How many hours of sunshine does Saint Joseph have in December?
What is the month with the highest UV index in Saint Joseph?
What are the months with the lowest UV index in Saint Joseph?
How high is the UV index in December in Saint Joseph?
Average temperature in December
Saint Joseph, Trinidad and Tobago
- Average high temperature in December: 28.7°C
The warmest month (with the highest average high temperature) is September (30.5°C).
The month with the lowest average high temperature is January (28.2°C).
- Average low temperature in December: 25.4°C
The months with the highest average low temperature are September and October (26.5°C).
The coldest month (with the lowest average low temperature) is February (24.7°C).
Average pressure in December
Saint Joseph, Trinidad and Tobago
- Average pressure in December: 1012.1mbar
The month with the highest atmospheric pressure is June (1013.7mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in December
Saint Joseph, Trinidad and Tobago
- Average wind speed in December: 15.6km/h
The windiest month (with the highest average wind speed) is May (17km/h).
The calmest month (with the lowest average wind speed) is August (12.6km/h).
Average humidity in December
Saint Joseph, Trinidad and Tobago
- Average humidity in December: 78%
The months with the highest relative humidity are July, November and December (78%).
The months with the lowest relative humidity are March and April (74%).
Average rainfall in December
Saint Joseph, Trinidad and Tobago
- Average rainfall in December: 48mm
The wettest month (with the highest rainfall) is August (97mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in December
Saint Joseph, Trinidad and Tobago
- Average rainfall days in December: 16.6 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is April (11.6 days).
Average daylight in December /
Average sunshine in December
Saint Joseph, Trinidad and Tobago
- Average daylight in December: 11h and 3min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 6h and 4min
The months with the most sunshine are August and September (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Saint Joseph, Trinidad and Tobago
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is July (5.6 days).
Average UV index in December
Saint Joseph, Trinidad and Tobago
- 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
Saint Joseph, Trinidad and Tobago
- Average cloud cover in December: 38
The month with the most cloud cover is June (Cloud cover 42).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in December
Saint Joseph, Trinidad and Tobago
- 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).
