August weather forecast
Chiang Rai, Thailand

In August, Chiang Rai experiences generous showers, continuing the monsoon trend of last month. Though the rainfall decreases slightly to 358mm (14.09") from the previous month, humidity is at its maxima. However, despite these continuous showers, the city maintains a vibrant and lively scenario. The brimming rivers and lush greenery all around adds a unique charm to the city. August in Chiang Rai presents a chance to explore the rainy charm of the city.

Temperature

Chiang Rai's August reports an average high-temperature of a still hot 30.9°C (87.6°F), exhibiting a minor difference from July. Throughout the nights in August, Chiang Rai experiences an average low-temperature of 23.3°C (73.9°F).

Heat index

The heat index value during August is estimated at a blisteringly hot 42°C (107.6°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

August is the most humid month, with an average relative humidity of 84%.

Rainfall

The month with the most rainfall is August, when the rain falls for 24 days and typically aggregates up to 358mm (14.09") of precipitation.

Daylight

In August, the average length of the day in Chiang Rai, Thailand, is 12h and 48min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:57. On the last day of August, in Chiang Rai, sunrise is at 06:04 and sunset at 18:36 +07.

Sunshine

June through August, with an average of 5h of sunshine, are months with the least 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 the ordinary person.
Note: In August, the maximum UV index of 12 suggests this advice:
Utilize every vital safety procedure. Individuals with light skin may endure burns in less than 5 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.