December weather forecast
Thái Mỹ, Vietnam

December, the first month of the winter in Thái Mỹ, is still a tropical month, with an average temperature varying between 23.2°C (73.8°F) and 31.2°C (88.2°F).

Temperature

The arrival of December brings an average high-temperature of a still tropical 31.2°C (88.2°F), nearly identical to November's 31.5°C (88.7°F). The month of December records an average low-temperature of 23.2°C (73.8°F).

Heat index

December's average heat index is calculated to be a torrid 39°C (102.2°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In Thái Mỹ, the average relative humidity in December is 74%.

Rainfall

In Thái Mỹ, Vietnam, during December, the rain falls for 14 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, there are 241.8 rainfall days, and 1283mm (50.51") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 30min of daylight.
On the first day of the month, sunrise is at 05:57 and sunset at 17:29. On the last day of December, sunrise is at 06:12 and sunset at 17:42 +07.

Sunshine

The average sunshine in December is 7.1h.

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 are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. 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. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.