August weather forecast
Bangkok, Thailand

In Bangkok, August is typified by sustained rainfall, making it one of the wettest months of the year. Torrential showers are widespread, resulting in 219mm (8.62") precipitation, spreading across an extensive 20 days, making it the most rainy month. However, daylight duration begins to recede, mirroring the gradual approach of the dry season. Relative humidity also reaches its highest annual level, adding to the city's overall damp theme. As September approaches, angkorians await a decline in monsoon intensity.

Temperature

August notes an average high-temperature of a still tropical 32.9°C (91.2°F), subtly differing from July's 33.2°C (91.8°F). Bangkok's average low-temperature in August is measured at a warm 25.5°C (77.9°F).

Heat index

The heat index value during August is estimated at a burning hot 46°C (114.8°F). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in August is 76%.

Rainfall

In Bangkok, in August, it is raining for 20 days, with typically 219mm (8.62") of accumulated precipitation. Throughout the year, there are 128 rainfall days, and 1648mm (64.88") of precipitation is accumulated.

Sea temperature

In Bangkok, in August, the average water temperature is 28.9°C (84°F).
Note: Between the temperatures of 25°C (77°F) and 29°C (84.2°F), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.

Daylight

In August, the average length of the day is 12h and 34min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:46. On the last day of August, sunrise is at 06:06 and sunset at 18:30 +07.

Sunshine

August and September, with an average of 5.2h of sunshine, are months with the least sunshine.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an excessive health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 12 during August translates into these guidelines:
Adopt all essential precautions. Preventing sun harm is crucial. 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. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Frequent application of a broad-spectrum SPF 30+ sunscreen is crucial, reapply it every two hours or immediately post swimming or outdoor exercise. Be mindful! Sand and water reflections can up the Sun's UV exposure.