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 presents a chance to explore the rainy charm of the city.

Temperature

As Chiang Rai welcomes August, the average high-temperature is noted at a still hot 30.9°C (87.6°F), closely aligning with the preceding month. Chiang Rai, in August, experiences an average temperature of 23.3°C (73.9°F) at night.

Heat index

The heat index in August is appraised at a blistering 42°C (107.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Rising body temperatures due to excess heat retention could signify impending heat disorders.

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

The average length of the day in August 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, 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

March through September, with an average maximum UV index of 12, are months with the highest UV index in Chiang Rai. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 12 in August translates into the following recommendations:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Use liberally and reapply a broad-spectrum SPF 30+ sunscreen every two hours, or straight away after any outdoor workout or swim.