Air Quality in Port Louis Today — Live AQI, PM2.5 & PM10, Smog, Weather and Forecast

Latest air quality data: Port Louis

Locations: Port Louis Saint-Denis » Vacoas-Phoenix »

Pollution and air quality forecast for Port Louis. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Port Louis:

particulate matter (PM2.5) dust - 9 (Good)
particulate matter (PM10) suspended dust - 14 (Good)
ozone (O3) - 52 (Good)
nitrogen dioxide (NO2) - 5 (Good)
sulfur dioxide (SO2) - 2 (Good)
carbon monoxide (CO) - 152 (Good)

Real-time Air Quality Index (AQI) for Port Louis, Thursday, August 27, 2026: 1.

AQI 1 Good

What is the air quality in Port Louis today? Is the air polluted in Port Louis?. Is there smog?

Today (Thursday, August 27, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Port Louis.

What is the current level of PM2.5 in Port Louis? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 9 (Good) For comparison, the highest level of PM2.5 in Port Louis in the last 7 days was: 9 (Thursday, August 27, 2026) and the lowest: 6 (Monday, August 24, 2026).

What is the level of PM10 today in Port Louis? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Port Louis is: 14 (Good)

How is the O3 level today in Port Louis? (ozone (O3))
52 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
5 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
2 (Good)

How high is the CO level? (carbon monoxide (CO))
152 (Good)

Current data Thursday, August 27, 2026 at 5:00 AM

PM2,5 9 (Good)

PM10 14 (Good)

O3 52 (Good)

NO2 5 (Good)

SO2 2 (Good)

CO 152 (Good)

Data on air pollution from recent days in Port Louis

index	2026-08-27	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20
pm25	9 Good	8 Good	7 Good	6 Good	6 Good	6 Good	7 Good	7 Good
pm10	15 Good	13 Good	11 Good	9 Good	10 Good	10 Good	11 Good	12 Good
o3	63 Good	66 Good	59 Good	66 Good	59 Good	58 Good	59 Good	55 Good
no2	3 Good	3 Good	4 Good	2 Good	3 Good	3 Good	3 Good	3 Good
so2	3 Good	2 Good	2 Good	2 Good	2 Good	2 Good	2 Good	2 Good
co	138 Good	135 Good	150 Good	113 Good	111 Good	114 Good	95 Good	92 Good

data source »

Quality of life in Port Louis

Green and Parks in the City

Port Louis 27%

Madagascar: 31% Seychelles: 57%

particulate matter PM2.5

Port Louis 11 (Good)

Pleasure of spending time in the city

Port Louis 44%

Madagascar: 28% Seychelles: 66%

particulate matter PM10

Port Louis 22 (Moderate)

Air Pollution

Port Louis 49%

Madagascar: 74% Seychelles: 24%

Garbage Disposal

Port Louis 36%

Madagascar: 12% Seychelles: 62%

Availability and quality of drinking water

Port Louis 63%

Madagascar: 27% Seychelles: 63%

Cleanliness and tidiness

Port Louis 34%

Madagascar: 17% Seychelles: 63%

Noise and Light pollution

Port Louis 41%

Madagascar: 47% Seychelles: 35%

Water Pollution

Port Louis 53%

Madagascar: 81% Seychelles: 37%

Source: Numbeo

Port Louis

Thursday, August 27, 2026 at 5:00 AM

PM2,5 9.2 (Good)

particulate matter (PM2.5) dust

PM10 14 (Good)

particulate matter (PM10) suspended dust

O3 52 (Good)

ozone (O3)

NO2 4.6 (Good)

nitrogen dioxide (NO2)

SO2 1.8 (Good)

sulfur dioxide (SO2)

CO 152 (Good)

carbon monoxide (CO)

Port Louis

index	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26	2026-08-27
pm25	7.3	6.7	6.4	6.4	5.5	6.9	8.3	9.2
pm10	12	11	10	9.7	8.7	11	13	15
o3	55	59	58	59	66	59	66	63
no2	2.8	3	2.9	3.4	2.4	3.6	3.2	3.4
so2	2	1.8	1.9	2.1	1.7	2.1	1.9	2.7
co	92	95	114	111	113	150	135	138

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Mauritius

16-day weather forecast for Mauritius: today around 23°C (rain), lows near 16°C. Daily temperature and conditions, updated every day. Strong wind (about 18 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Mauritius

The UV index in Mauritius today is 7.5 (high) — unprotected fair skin can burn in about 25 minutes.

Frequently asked questions

Is the air safe to breathe in Port Louis today?

The current average PM2.5 across Port Louis is about 9 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Port Louis?

Right now PM2.5 in Port Louis averages about 9 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Port Louis?

Over the past week, the highest daily PM2.5 in Port Louis was recorded on Thursday, August 27 (about 9 µg/m³).

What is the UV index in Port Louis today?

The UV index in Port Louis today is 7.5 (high) — unprotected fair skin can burn in about 25 minutes.

Does today's wind help disperse smog in Port Louis?

Strong wind (about 18 km/h) is actively clearing smog and dust away.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.