December weather forecast
Cầu Khởi, Vietnam

The first month of the winter, December, is still a hot month in Cầu Khởi, Vietnam, with an average temperature ranging between min 23.1°C (73.6°F) and max 31.3°C (88.3°F).

Temperature

Cầu Khởi records the coldest temperatures in December, averaging a high of 31.3°C (88.3°F) and a low of 23.1°C (73.6°F).

Heat index

During December, the heat index is computed to be a sweltering 38°C (100.4°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', determines the feeling of heat when you account for the relative humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
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 challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In Cầu Khởi, the average relative humidity in December is 69%.

Rainfall

In Cầu Khởi, in December, during 10 rainfall days, 25mm (0.98") of precipitation is typically accumulated. Throughout the year, in Cầu Khởi, there are 233.2 rainfall days, and 1174mm (46.22") 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 05:58 and sunset at 17:29. On the last day of December, sunrise is at 06:13 and sunset at 17:42 +07.

Sunshine

December has the least sunshine of the year, with an average of 6.8h of sunshine.

UV index

The months with the lowest UV index are January, February, April through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.