August weather forecast
Bangkok, Thailand

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A beautiful park outside the Wat Ratchanatdaram Temple in the heart of Bangkok, Thailand
A beautiful park outside the Wat Ratchanatdaram Temple in the heart of Bangkok, Thailand

Weather in August

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

The advent of August signifies a minor shift to an average high-temperature of a still tropical 32.9°C (91.2°F), aligning closely with July. August brings with it a nighttime average temperature of 25.5°C (77.9°F) in Bangkok, Thailand.

Heat index

August's heat index is calculated to be a blazing hot 46°C (114.8°F). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Bangkok, Thailand, the average relative humidity in August is 76%.

Rainfall

In Bangkok, during August, the rain falls for 20 days and regularly aggregates up to 219mm (8.62") of precipitation. In Bangkok, during the entire year, the rain falls for 128 days and collects up to 1648mm (64.88") of precipitation.

Sea temperature

In August, the average sea temperature in Bangkok is 28.9°C (84°F).
Note: Engaging in swimming, diving, or other water activities is highly enjoyable in temperatures ranging from 25°C (77°F) to 29°C (84.2°F), without any unpleasant sensations for prolonged durations.

Daylight

The average length of the day in August in Bangkok is 12h and 34min.
On the first day of August, sunrise is at 06:02 and sunset at 18:46. On the last day of the month, 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

February 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 ultimate health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 12 in August translates into the following recommendations:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Post an outdoor workout or swimming, a broad-spectrum SPF 30+ sunscreen should be applied generously and frequently. Caution! The Sun's UV intensity grows with reflections off sand and water.
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Frequently asked questions

How hot is it in Bangkok in August?

The high-temperature, in August, in Bangkok, is 32.9°C (91.2°F), while the low-temperature averages to 25.5°C (77.9°F). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 46°C (114.8°F).

What is the average humidity in August in Bangkok?

In August, the average relative humidity is 76%.

How much does it rain in Bangkok in August?

In August, in Bangkok, Thailand, the rain falls for 20 days. Throughout August, 219mm (8.62") of precipitation is accumulated.

What is the water temperature in August in Bangkok?

In August, the average sea temperature in Bangkok is 28.9°C (84°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Bangkok have in August?

In Bangkok, the average day length in August is 12h and 34min.

What time are sunrise and sunset in August in Bangkok?

In August, on the first day of the month, sunrise is at 06:02 and sunset at 18:46. On the last day of the month, sunrise is at 06:06 and sunset at 18:30 +07.

What are the months with the least sunshine in Bangkok?

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

How long on average sun shines in August in Bangkok?

In August, the average sunshine duration in Bangkok is 5.2h.

What is the month with the highest UV index in Bangkok?

The months with the highest UV index in Bangkok are February through September, with an average maximum UV index of 12.

How high is the UV index in August in Bangkok?

The average daily maximum UV index in August in Bangkok is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in August
Bangkok, Thailand

Average temperature in August - Bangkok, Thailand
  • Average high temperature in August: 32.9°C

The warmest month (with the highest average high temperature) is April (35.4°C).
The month with the lowest average high temperature is December (31.7°C).

  • Average low temperature in August: 25.5°C

The month with the highest average low temperature is April (26.9°C).
The coldest month (with the lowest average low temperature) is December (22°C).

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Average humidity in August
Bangkok, Thailand

Average humidity in August - Bangkok, Thailand
  • Average humidity in August: 76%

The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is December (66%).

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Average rainfall in August
Bangkok, Thailand

Average rainfall in August - Bangkok, Thailand
  • Average rainfall in August: 219.3mm

The wettest month (with the highest rainfall) is September (334.3mm).
The driest month (with the least rainfall) is December (6.3mm).

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Average rainfall days in August
Bangkok, Thailand

Average rainfall days in August - Bangkok, Thailand
  • Average rainfall days in August: 20 days

The month with the highest number of rainy days is September (21 days).
The months with the least rainy days are January and December (1 days).

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Average sea temperature in August
Bangkok, Thailand

Average sea temperature in August - Bangkok, Thailand
  • Average sea temperature in August: 28.9°C

The best month for swimming (with the highest average sea temperature) is May (29.9°C).
The coldest month (with the lowest average sea temperature) is January (26.7°C).

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Average daylight in August /
Average sunshine in August
Bangkok, Thailand

Average daylight in August / Average sunshine in August - Bangkok, Thailand
  • Average daylight in August: 12h and 4min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in August: 5h and 1min

The month with the most sunshine is February (Average sunshine: 9h and 0min).
The months with the least sunshine are August and September (Average sunshine: 5h and 12min).

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Average UV index in August
Bangkok, Thailand

Average UV index in August - Bangkok, Thailand
  • Average UV index in August: 12

The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

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Bangkok, Thailand

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