Air Quality
2.6/5
24.1 µg/m³Sensitive Groups
Air Quality Profile
Thimphu reports an annual PM2.5 of 24.1 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Thimphu
Bhutan
BhutanAnnual Average
ModerateWHO annual classification
24.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
2929 µg/m³ — Poor
3333 µg/m³ — Poor
3232 µg/m³ — Poor
3434 µg/m³ — Poor
2323 µg/m³ — Moderate
2727 µg/m³ — Poor
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
1616 µg/m³ — Moderate
1515 µg/m³ — Moderate
1818 µg/m³ — Moderate
2020 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
2929 µg/m³ — Poor
3333 µg/m³ — Poor
3232 µg/m³ — Poor
3434 µg/m³ — Poor
2323 µg/m³ — Moderate
2727 µg/m³ — Poor
Jul
Aug
Sep
Oct
Nov
Dec
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
1616 µg/m³ — Moderate
1515 µg/m³ — Moderate
1818 µg/m³ — Moderate
2020 µg/m³ — Moderate
Best months: Sep–NovWorst months: Feb–Apr
Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Air Quality Profile
Thimphu reports an annual PM2.5 of 24.1 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
ThimphuBhutan
BhutanAnnual Average
ModerateWHO annual classification
24.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
2929 µg/m³ — Poor
3333 µg/m³ — Poor
3232 µg/m³ — Poor
3434 µg/m³ — Poor
2323 µg/m³ — Moderate
2727 µg/m³ — Poor
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
1616 µg/m³ — Moderate
1515 µg/m³ — Moderate
1818 µg/m³ — Moderate
2020 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
2929 µg/m³ — Poor
3333 µg/m³ — Poor
3232 µg/m³ — Poor
3434 µg/m³ — Poor
2323 µg/m³ — Moderate
2727 µg/m³ — Poor
Jul
Aug
Sep
Oct
Nov
Dec
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
1616 µg/m³ — Moderate
1515 µg/m³ — Moderate
1818 µg/m³ — Moderate
2020 µg/m³ — Moderate
Best months: Sep–NovWorst months: Feb–Apr
Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Who thrives in Thimphu
Things to consider in Thimphu
PM2.5 annual average of 24.1 µg/m³ exceeds the WHO interim target of 15 µg/m³. The WHO guideline value is 5 µg/m³.
Data sources: WHO (air quality), OECD (safety).
Why not Thimphu?
Why not Thimphu? Honestly, air quality could be better — Thimphu's 24.1 µg/m³ annual PM2.5 is above WHO guidelines, though still within ranges common for larger cities.
Frequently asked about Thimphu
▶How many sunny days does Thimphu have per year?
Thimphu averages approximately 189 sunny days per year, based on historical climate data.
▶What is the air quality in Thimphu?
Thimphu has an annual PM2.5 concentration of 24.1 µg/m³, classified as "Moderate" by WHO standards. Above WHO targets. Some respiratory effects possible with prolonged exposure.