December weather forecast
Mong Thọ, Vietnam

The first month of the winter, December, is also a moderately hot month in Mong Thọ, Vietnam, with temperature in the range of an average high of 29.8°C (85.6°F) and an average low of 23.9°C (75°F).

Temperature

December is Mong Thọ's coldest month, registering average high temperatures of 29.8°C (85.6°F) and lows of 23.9°C (75°F).

Heat index

The heat index for December is appraised at a very hot 36°C (96.8°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in December is 75%.

Rainfall

In December, the rain falls for 15.9 days. Throughout December, 83mm (3.27") of precipitation is accumulated. In Mong Thọ, during the entire year, the rain falls for 219.9 days and collects up to 1153mm (45.39") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 36min of daylight.
On the first day of the month, sunrise is at 06:00 and sunset at 17:35. On the last day of December, sunrise is at 06:15 and sunset at 17:48 +07.

Sunshine

With an average of 6.2h of sunshine, December has the least sunshine of the year.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.