How loud is Bangkok?
Bangkok runs an estimated 70–84 dB by day — UNEP’s survey recorded 99 dB peaks. Un-silenced motorbikes, tuk-tuks and elevated traffic stack over street markets, against a national ambient standard of 70 dB that central corridors regularly breach.
Last updated:
| Rank (of 50 cities) | #13 |
|---|---|
| Estimated daytime range | 70–84 dB |
| Estimated night range | 58–72 dB |
| vs. WHO guidelines | ≈ 24 dB above the 53 dB Lden road-noise guideline (night guideline: 45 dB) |
| Dominant sources | road traffic, motorbikes, street commerce |
| Confidence | high |
Bangkok’s noise rises in layers: street-level food carts and markets, a motorbike and tuk-tuk fleet whose exhausts are often modified in exactly the wrong direction, mid-level expressways feeding sound down between towers, and the BTS Skytrain rumbling above major roads. The UNEP Frontiers 2022 survey recorded peaks of 99 dB.
Thailand’s Pollution Control Department sets a general ambient standard of 70 dB as a 24-hour average, and its Bangkok monitoring stations along corridors like Sukhumvit and Silom log routine exceedances. Police periodically run loud-exhaust checkpoints — modified motorbike pipes are a fineable offence — with the same regenerating-fleet problem familiar from Karachi to Hanoi.
The quieter counter-currents are real: the city’s expanding MRT and BTS network, electric tuk-tuk pilots, and riverside and park districts (Lumphini at dawn is another city entirely). But the default Bangkok experience remains a 70-plus dB street with a 100 dB motorcycle in it somewhere.
Bangkok noise: the specifics
- UNEP Frontiers 2022 recorded 99 dB peaks.
- Thailand’s ambient standard is 70 dB Leq(24h); central-corridor stations routinely exceed it.
- Modified loud exhausts are a fineable offence enforced via police checkpoints.
- Estimated 70–84 dB daytime range vs. the WHO’s 53 dB Lden guideline — roughly 24 dB over.
Ranges are estimates from our published-source corpus (UNEP Frontiers 2022, Mimi Worldwide Hearing Index, official noise maps and peer-reviewed studies) — see the methodology note on the City Sound Map. We publish ranges and confidence labels, not false point precision.
Measure your own street
Standing somewhere loud in Bangkok right now? Measure it with the free online decibel meter → No install, nothing recorded.