December weather forecast
Củ Chi, Vietnam

The first month of the winter, December, is still a hot month in Củ Chi, Vietnam, with temperature in the range of an average high of 31.2°C (88.2°F) and an average low of 23.2°C (73.8°F).

Temperature

Transitioning into December, Củ Chi records an average high-temperature of a still tropical 31.2°C (88.2°F), almost identical to November's 31.5°C (88.7°F). In the month of December, Củ Chi's average low-temperature falls to a warm 23.2°C (73.8°F).

Heat index

The heat index value for December is evaluated at a fiery hot 39°C (102.2°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The average relative humidity in December is 74%.

Rainfall

In Củ Chi, in December, during 14 rainfall days, 32mm (1.26") of precipitation is typically accumulated. In Củ Chi, during the entire year, the rain falls for 241.8 days and collects up to 1283mm (50.51") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 30min of daylight.
On the first day of December, sunrise is at 05:57 and sunset at 17:28. On the last day of the month, sunrise is at 06:12 and sunset at 17:41 +07.

Sunshine

In December, the average sunshine is 7.1h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 7 suggests this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.