April weather forecast
Ngọc Lâm, Vietnam

April, like March, is another tropical spring month in Ngọc Lâm, Vietnam, with temperature in the range of an average high of 32.4°C (90.3°F) and an average low of 24.3°C (75.7°F).

Temperature

The arrival of April records an average high-temperature of a still hot 32.4°C (90.3°F), closely related to the 31.8°C (89.2°F) observed in March. In Ngọc Lâm, the average low-temperature during the month of April is a moderately hot 24.3°C (75.7°F).

Heat index

The heat index in April is appraised at an extremely hot 43°C (109.4°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in April is 73%.

Rainfall

In Ngọc Lâm, during April, the rain falls for 9 days and regularly aggregates up to 16mm (0.63") of precipitation. In Ngọc Lâm, during the entire year, the rain falls for 152.7 days and collects up to 468mm (18.43") of precipitation.

Daylight

In Ngọc Lâm, the average length of the day in April is 12h and 38min.
On the first day of the month, sunrise is at 05:49 and sunset at 18:11. On the last day of April, sunrise is at 05:26 and sunset at 18:21 +07.

Sunshine

The average sunshine in April is 9.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Ngọc Lâm. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Ngọc Lâm. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In April, the maximum UV index of 7 transforms into these recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.