April weather forecast
Cốc Ngang, Vietnam

April in Cốc Ngang, Vietnam, is a hot spring month, with an average temperature varying between 21.8°C (71.2°F) and 30.8°C (87.4°F).

Temperature

The onset of April introduces a subtle rise in the average high-temperature, nudging from a moderately hot 26.8°C (80.2°F) in March to a tropical 30.8°C (87.4°F). Cốc Ngang records a mean low-temperature of 21.8°C (71.2°F) in April.

Heat index

The heat index value for April is evaluated at a sweltering 39°C (102.2°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and 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 essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In April, the average relative humidity is 77%.

Rainfall

In Cốc Ngang, during April, the rain falls for 14.8 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, there are 181.2 rainfall days, and 595mm (23.43") of precipitation is accumulated.

Daylight

In April, the average length of the day is 12h and 38min.
On the first day of April, sunrise is at 05:48 and sunset at 18:10. On the last day of the month, sunrise is at 05:26 and sunset at 18:19 +07.

Sunshine

In April, the average sunshine is 7.2h.

UV index

In Cốc Ngang, the average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in April transforms into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.