December weather forecast
Hồng Ngự, Vietnam

December, the first month of the winter in Hồngự, is also a hot month, with an average temperature fluctuating between 31°C (87.8°F) and 22.9°C (73.2°F).

Temperature

With average temperatures fluctuating between a high of 31°C (87.8°F) and a low of 22.9°C (73.2°F), December stands out as the coldest month.

Heat index

December's average heat index is appraised at a torrid 38°C (100.4°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In December, the average relative humidity is 71%.

Rainfall

In Hồngự, during December, the rain falls for 11.5 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, there are 223 rainfall days, and 986mm (38.82") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 30min of daylight.
On the first day of the month, sunrise is at 06:01 and sunset at 17:33. On the last day of December, sunrise is at 06:16 and sunset at 17:46 +07.

Sunshine

The month with the least sunshine is December, with an average of 6.6h of sunshine.

UV index

January, February, May 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 radiation for average individuals.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.