SmogRank / Indonesia / Bali

Air quality in Ubud

Bali, Indonesia. PM2.5 from 8 low-cost sensors, updated hourly.

31.0 µg/m³
Moderate

Latest hour (09:00 UTC), 2.1× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
#30
of 2,333 · 47.8 µg/m³
30 days
#49
of 2,331 · 37.0 µg/m³
Year
–
not enough data

Why it ranks here

Likely fire smoke. On Sep 30, when Ubud averaged 55.4 µg/m³, NASA satellites detected 56 fires within 300 km (3 within 100 km). Smoke from those fires is a likely contributor; we don't check which way the wind blew, and mapped smoke can be high above the ground.

Based on Ubud's own measurements, with fire detections from NASA FIRMS and smoke maps from NOAA HMS; causes are the usual kinds for a pattern like this, not a confirmed source.

Last 4 days, hour by hour

15772026-10-01 00:00 UTC: 76.7 µg/m³2026-10-01 01:00 UTC: 45.8 µg/m³2026-10-01 02:00 UTC: 35.3 µg/m³2026-10-01 03:00 UTC: 33.6 µg/m³2026-10-01 04:00 UTC: 31.6 µg/m³2026-10-01 05:00 UTC: 27.2 µg/m³2026-10-01 06:00 UTC: 19.7 µg/m³2026-10-01 07:00 UTC: 20.5 µg/m³2026-10-01 08:00 UTC: 25.7 µg/m³2026-10-01 09:00 UTC: 31.0 µg/m³Sep 28Sep 29Sep 30Oct 1

Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Every day for a year

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data2026-04-23: no data2026-04-24: no data2026-04-25: no data2026-04-26: no data2026-04-27: no data2026-04-28: no data2026-04-29: no data2026-04-30: no data2026-05-01: no data2026-05-02: no data2026-05-03: no data2026-05-04: no data2026-05-05: no data2026-05-06: no data2026-05-07: no data2026-05-08: no data2026-05-09: no data2026-05-10: no data2026-05-11: no data2026-05-12: no data2026-05-13: no data2026-05-14: no data2026-05-15: no data2026-05-16: no data2026-05-17: no data2026-05-18: no data2026-05-19: no data2026-05-20: no data2026-05-21: no data2026-05-22: no data2026-05-23: no data2026-05-24: no data2026-05-25: no data2026-05-26: no data2026-05-27: no data2026-05-28: no data2026-05-29: no data2026-05-30: no data2026-05-31: no data2026-06-01: no data2026-06-02: no data2026-06-03: no data2026-06-04: no data2026-06-05: no data2026-06-06: no data2026-06-07: no data2026-06-08: no data2026-06-09: no data2026-06-10: no data2026-06-11: no data2026-06-12: no data2026-06-13: no data2026-06-14: no data2026-06-15: no data2026-06-16: no data2026-06-17: no data2026-06-18: no data2026-06-19: no data2026-06-20: no data2026-06-21: no data2026-06-22: no data2026-06-23: no data2026-06-24: no data2026-06-25: no data2026-06-26: no data2026-06-27: no data2026-06-28: no data2026-06-29: no data2026-06-30: no data2026-07-01: no data2026-07-02: no data2026-07-03: no data2026-07-04: no data2026-07-05: no data2026-07-06: no data2026-07-07: no data2026-07-08: no data2026-07-09: no data2026-07-10: no data2026-07-11: no data2026-07-12: no data2026-07-13: no data2026-07-14: no data2026-07-15: no data2026-07-16: no data2026-07-17: no data2026-07-18: no data2026-07-19: no data2026-07-20: no data2026-07-21: no data2026-07-22: 32.1 µg/m³2026-07-23: no data2026-07-24: no data2026-07-25: no data2026-07-26: no data2026-07-27: no data2026-07-28: no data2026-07-29: no data2026-07-30: no data2026-07-31: no data2026-08-01: no data2026-08-02: no data2026-08-03: no data2026-08-04: no data2026-08-05: no data2026-08-06: no data2026-08-07: no data2026-08-08: no data2026-08-09: 32.2 µg/m³2026-08-10: 32.3 µg/m³2026-08-11: 40.9 µg/m³2026-08-12: 37.9 µg/m³2026-08-13: 37.9 µg/m³2026-08-14: 37.5 µg/m³2026-08-15: 42.0 µg/m³2026-08-16: 51.5 µg/m³2026-08-17: 49.3 µg/m³2026-08-18: 53.7 µg/m³2026-08-19: 55.3 µg/m³2026-08-20: 51.7 µg/m³2026-08-21: no data2026-08-22: 51.2 µg/m³2026-08-23: 34.3 µg/m³2026-08-24: 25.4 µg/m³2026-08-25: 30.6 µg/m³2026-08-26: 34.2 µg/m³2026-08-27: 44.1 µg/m³2026-08-28: 42.9 µg/m³2026-08-29: 53.6 µg/m³2026-08-30: 50.0 µg/m³2026-08-31: 48.3 µg/m³2026-09-01: 38.3 µg/m³2026-09-02: 30.7 µg/m³2026-09-03: 32.1 µg/m³2026-09-04: 34.1 µg/m³2026-09-05: 29.7 µg/m³2026-09-06: 32.3 µg/m³2026-09-07: 21.4 µg/m³2026-09-08: 23.7 µg/m³2026-09-09: 20.3 µg/m³2026-09-10: 32.7 µg/m³2026-09-11: 38.1 µg/m³2026-09-12: 38.7 µg/m³2026-09-13: 43.4 µg/m³2026-09-14: 26.2 µg/m³2026-09-15: 23.8 µg/m³2026-09-16: 24.0 µg/m³2026-09-17: 30.3 µg/m³2026-09-18: 38.9 µg/m³2026-09-19: 37.0 µg/m³2026-09-20: 43.3 µg/m³2026-09-21: 40.5 µg/m³2026-09-22: 44.9 µg/m³2026-09-23: 49.7 µg/m³2026-09-24: 45.4 µg/m³2026-09-25: 47.7 µg/m³2026-09-26: 46.0 µg/m³2026-09-27: 46.7 µg/m³2026-09-28: 47.2 µg/m³2026-09-29: 46.5 µg/m³2026-09-30: 55.4 µg/m³
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

53 of 53 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#176AugSep

Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15JanFebMarAprMayJunJulAug 2026: 42.6 µg/m³AugSep 2026: 37.0 µg/m³SepOctNovDec

Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
Pejeng KanginCC BY 4.0AirGradientLow-cost
zest ubudCC BY 4.0AirGradientLow-cost
Bindu RicefieldsCC BY 4.0AirGradientLow-cost
Villa MalaikatCC BY 4.0AirGradientLow-cost
Jl Cempaka, UbudCC BY 4.0AirGradientLow-cost
Subak Uma LambingCC BY 4.0AirGradientLow-cost
Umah Gudang sensorCC BY 4.0AirGradientLow-cost
Tepi SungaiCC BY 4.0AirGradientLow-cost

No reference monitor here, so the value is the median of low-cost sensors (at least two reporting each hour). Low-cost sensors can read high in humid air. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in Indonesia

Tabanan 40.0Dalung 33.5Denpasar 28.0

30-day averages, µg/m³. All of Indonesia →

Updated 2026-10-01 10:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.