April in
Nong Khai,
Thailand, is a very hot spring month, with temperature in the range of an average high of 36.2°C (97.2°F) and an average low of 24.3°C (75.7°F).
Temperature
The month of April sees the highest average temperatures, reaching 36.2°C (97.2°F) at the peak and 24.3°C (75.7°F) at the low.
Heat index
Throughout April, the heat index is computed to be a life-threatening hot 53°C (127.4°F).
Take caution: Heat exhaustion and heat cramps are probable. Heatstroke may be imminent with ongoing effort.
When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. 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. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In Nong Khai, the average relative humidity in April is 67%.
Rainfall
In Nong Khai, in April, during 8 rainfall days, 83mm (3.27") of precipitation is typically accumulated. In Nong Khai, during the entire year, the rain falls for 126 days and collects up to 1608mm (63.31") of precipitation.
Daylight
In Nong Khai, Thailand, the average length of the day in April is 12h and 33min.
On the first day of April, sunrise is at 06:03 and sunset at 18:22. On the last day of the month, sunrise is at 05:42 and sunset at 18:29 +07.
Sunshine
The months with the most sunshine in Nong Khai, Thailand, are
January through April,
October through
December, with an average of 8h of sunshine.
UV index
The months with the highest UV index in Nong Khai are
March through
September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In April, a daily maximum UV index of 12 leads to the following instructions:
Execute all vital precautions. Preventing sun damage is of utmost importance. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. A sunscreen with at least SPF 30 should be used liberally and reapplied frequently on cloudy days, especially after swimming or an outdoor workout.