April weather forecast
Vĩnh Hội, Vietnam

April, like March, in Vĩnh Hội, Vietnam, is another warm spring month, with an average temperature fluctuating between 29.9°C (85.8°F) and 24.3°C (75.7°F).

Temperature

Vĩnh Hội's average high-temperature in April sits at a still warm 29.9°C (85.8°F), showing little difference from the previous month. An average low-temperature of 24.3°C (75.7°F) is anticipated throughout the nights during April.

Heat index

Throughout April, the heat index is evaluated at a very hot 37°C (98.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In April, the average relative humidity is 80%.

Rainfall

In April, the rain falls for 14.8 days. Throughout April, 64mm (2.52") of precipitation is accumulated. In Vĩnh Hội, during the entire year, the rain falls for 260 days and collects up to 1343mm (52.87") of precipitation.

Daylight

In Vĩnh Hội, the average length of the day in April is 12h and 27min.
On the first day of the month, sunrise is at 05:38 and sunset at 17:55. On the last day of April, sunrise is at 05:21 and sunset at 17:59 +07.

Sunshine

In Vĩnh Hội, the average sunshine in April is 8.6h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in April transforms into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.