April weather forecast
Hoàng Vân, Vietnam

April in Hoàng Vân, Vietnam, is a hot spring month, with an average temperature fluctuating between 30.6°C (87.1°F) and 21.4°C (70.5°F).

Temperature

A subtle rise in the average high-temperature is observed during April, adjusting from a moderately hot 26.8°C (80.2°F) in March to a tropical 30.6°C (87.1°F). Hoàng Vân usually reports an average low-temperature of 21.4°C (70.5°F) during the month of April.

Heat index

For April, the heat index is calculated to be a torrid 38°C (100.4°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Hoàng Vân, the average relative humidity in April is 76%.

Rainfall

In April, the rain falls for 20.3 days. Throughout April, 53mm (2.09") of precipitation is accumulated. In Hoàng Vân, during the entire year, the rain falls for 236.6 days and collects up to 1444mm (56.85") of precipitation.

Daylight

In April, the average length of the day is 12h and 38min.
On the first day of April in Hoàng Vân, sunrise is at 05:50 and sunset at 18:12. On the last day of the month, sunrise is at 05:27 and sunset at 18:22 +07.

Sunshine

In Hoàng Vân, the average sunshine in April is 7.8h.

UV index

April through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 7 during April translates into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.