April weather forecast
Nan, Thailand

April showcases the onset of sweltering summer in Nan. Bright, sunny days dominate the month, with many people seeking respite in the cool, rolling hills outside the city. With increased daylight, the scorching heat can sometimes seem relentless. A notable feature of the weather is the highest recorded temperature reaches up to 37°C (98.6°F). April creates an atmosphere marked by the constant buzz of life under Thailand's intense sun.

Temperature

The highest temperatures in Nan are recorded in April, with averages reaching a high of 37°C (98.6°F) and a low of 22.3°C (72.1°F).

Heat index

For April, the heat index is estimated at a life-threatening hot 57°C (134.6°F). Warning: These weather conditions are seen as overly treacherous, with approaching heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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 it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In April, the average relative humidity is 68%.

Rainfall

In Nan, in April, during 9 rainfall days, 100mm (3.94") of precipitation is typically accumulated. Throughout the year, in Nan, there are 124 rainfall days, and 1234mm (48.58") of precipitation is accumulated.

Daylight

In April, the average length of the day in Nan, Thailand, is 12h and 34min.
On the first day of April in Nan, sunrise is at 06:10 and sunset at 18:30. On the last day of the month, sunrise is at 05:49 and sunset at 18:38 +07.

Sunshine

The months with the most sunshine in Nan, Thailand, are January through April, with an average of 9h of sunshine.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an extreme threat to health from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 12 in April transforms into the following instructions:
Employ all crucial safeguards, unprotected skin could burn rapidly. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Even if it's cloudy, generously apply and frequently reapply a sunscreen with no less than a 30 sun protection factor after each swim or outdoor exercise.