The month of
March signifies an evident shift in
Luang Prabang weather conditions, making the transition from spring to early summer. The city experiences a more pronounced increase in termperatures with the mercury pushing its upper boundary from 30.8°C (87.4°F) to 33.1°C (91.6°F). This increase correlates with a rise in the amount of daylight, which has swelled to 12 hours. The longer days, intensified heat, and the higher UV index of 12 serve as indicators of the looming summer. The humidity levels drop further, and sporadic rainfall interspersed throughout the month prevents the weather from becoming too dry.
Temperature
The start of March sees the average high-temperature at a still tropical 33.1°C (91.6°F), showing little difference from
February's 30.8°C (87.4°F). During the nights in March, Luang Prabang records a pronounced shift from the daytime warmth, with a consistent average temperature of 18°C (64.4°F).
Heat index
Throughout March, the heat index is appraised at a blazing hot 46°C (114.8°F).
Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.
For clarity, heat index numbers account for light winds and areas under shade. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
March is the least humid month in Luang Prabang, with an average relative humidity of 74%.
Rainfall
In March, the rain falls for 3 days. Throughout March, 30mm (1.18") of precipitation is accumulated. In Luang Prabang, during the entire year, the rain falls for 99 days and collects up to 1443mm (56.81") of precipitation.
Daylight
The average length of the day in March is 12h and 2min.
On the first day of the month, sunrise is at 06:30 and sunset at 18:16. On the last day of March, sunrise is at 06:05 and sunset at 18:25 +07.
Sunshine
In March, the average sunshine is 6.4h.
UV index
March through
September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an excessive health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 12 in March translates into the following recommendations:
Enforce every vital precaution. Those with light skin could endure burns in a matter of minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Sunscreen with an SPF of 30 or higher should be applied generously and frequently reapplied even on cloudy days, especially after each swim or outdoor workout.