Bangkok, Thailand skyline

Bangkok Weather in August

The usual August conditions in Bangkok, Thailand, drawn from 2006–2025 records.

Bangkok in August: highs near 31.5°C (88.7°F), lows near 25.5°C (77.9°F), roughly 24 rainy days adding up to 165 mm, and 8.2 hours of sunshine on an average day.

Avg high

31.5°C (88.7°F)

Avg low

25.5°C (77.9°F)

Rainfall

165 mm (6.5 in)

Rainy days

24 days

Sunshine

8.2 h / day

Humidity

79%

August vs the rest of the year

5 of the other 11 months are warmer than August in Bangkok; for rain it is the 4th wettest month.

MonthAvg highvs AugustRainRainy days
January31°C (87.8°F)−0.5°C (−0.9°F)17 mm3
February32.3°C (90.1°F)+0.8°C (+1.4°F)27 mm5
March33.5°C (92.3°F)+2°C (+3.6°F)42 mm7
April34.3°C (93.7°F)+2.8°C (+5°F)79 mm12
May33.3°C (91.9°F)+1.8°C (+3.2°F)156 mm21
June32.4°C (90.3°F)+0.9°C (+1.6°F)143 mm23
July31.4°C (88.5°F)−0.1°C (−0.2°F)167 mm24
August31.5°C (88.7°F)—165 mm24
September30.9°C (87.6°F)−0.6°C (−1.1°F)280 mm26
October30.7°C (87.3°F)−0.8°C (−1.4°F)212 mm22
November31.1°C (88°F)−0.4°C (−0.7°F)63 mm9
December30.9°C (87.6°F)−0.6°C (−1.1°F)12 mm3

What August feels like in Bangkok

August falls in Bangkok's wet season — the rainfall numbers rise clearly above the dry months. Afternoons are hot, so sightseeing works best in the morning or evening. Nights bring little relief: even the coolest hour of the night stays very warm. Thick, humid air means clothes cling and the heat feels stronger than the number.

Rain in Bangkok in August

Dry days are the exception, with rain on most days. Wet days average about 6.9 mm (0.3 in), enough to soak you without an umbrella. The yearly figure is similar, around 7.6 mm per wet day.

Daylight and sunshine in August

Mid-month, Bangkok gets 12 h 36 min of daylight, from sunrise near 6:05 am to sunset near 6:41 pm. Compared with mid-July, the day has lost 16 min. Close to the equator, sunrise and sunset times move very little through the year. The sun is out for roughly 65% of those daylight hours, so there are plenty of bright spells.

How August compares to the rest of the year

Ranked by average high, August comes out as the 6th warmest month in Bangkok. It is about as warm as July, with 2 mm less rain. Temperatures barely move from one month to the next here. The next month's average high: 30.9°C (87.6°F).

Who August suits

  • Sightseeing: less ideal — rain falls on more than half the days.
  • Parks & outdoor: less ideal — afternoons are too warm to linger outside.
  • Museums & indoor: a good choice — with rain on most days, galleries and museums make easy plans.

Tips for visiting Bangkok in August

Rain Protection

A packable rain jacket saves the day on showery afternoons.

Sun Protection

Protect yourself from strong sun: hat, SPF and plenty of water.

Quick questions

How warm is Bangkok in August?

Expect around 31.5°C (88.7°F) in the afternoon and 25.5°C (77.9°F) at night, which most visitors would call hot.

Does it rain a lot in Bangkok in August?

It does: about 24 rainy days bring roughly 165 mm, so plan some indoor options.

What should I wear in Bangkok in August?

Based on the averages: rain protection and sun protection. There is little need to change for the evening.

Is August or September better for visiting Bangkok?

On our 12-month climate ranking, August comes out ahead (#7 of 12 vs #10). September has more rainy days.

Is August a good time to visit Bangkok?

Fair

Fair — warm to hot days, rain on most days (about 24), plenty of sunshine (8.2 h a day). Within Bangkok's own year, August ranks #7 of 12.

Travel notes: Bangkok in August

Things to know in August

  • Mother's Day (12 August): the birthday of the late Queen Sirikit, the Queen Mother, is a public holiday and is celebrated as Mother's Day in Thailand, with decorations in blue and events in the city.
  • Rainy season: August is one of the wetter months, with frequent afternoon and evening thunderstorms.
  • Low season: fewer tourists visit during the rains, so major sights such as the Grand Palace and Wat Pho are usually less crowded than in the cool season.

Getting around

Streets can flood briefly after heavy downpours, and traffic slows, so use the BTS Skytrain, the MRT and river boats where possible. Keep an umbrella or light rain jacket with you, and remember that temple dress rules (covered shoulders and knees) apply whatever the weather.

August in other Thailand cities

Drier places in August

Plan a trip to Bangkok

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Bangkok weather by month.