Bissau: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

Latest air quality data: Bissau
Locations: Bissau
Pollution and air quality forecast for Bissau. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Bissau:
  1. particulate matter (PM2.5) dust - 19 (Moderate)
  2. particulate matter (PM10) suspended dust - 27 (Moderate)
  3. ozone (O3) - 26 (Good)
  4. nitrogen dioxide (NO2) - 6 (Good)
  5. sulfur dioxide (SO2) - 1 (Good)
  6. carbon monoxide (CO) - 275 (Good)
Real-time Air Quality Index (AQI) for Bissau, Thursday, August 27, 2026: 2.

air quality index: 1
AQI 2 Moderate

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

Today (Thursday, August 27, 2026) air quality is moderate in Bissau. Some pollutants in Bissau may slightly affect very few hypersensitive individuals. Air pollutants in Bissau may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in Bissau? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 19 (Moderate) For comparison, the highest level of PM2.5 in Bissau in the last 7 days was: 14 (Thursday, August 27, 2026) and the lowest: 2 (Monday, August 24, 2026).

What is the level of PM10 today in Bissau? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Bissau is: 27 (Moderate)

How is the O3 level today in Bissau? (ozone (O3))
26 (Good)

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

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

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



Current data Thursday, August 27, 2026 at 1:00 AM

PM2,5 19 (Moderate)

PM10 27 (Moderate)

O3 26 (Good)

NO2 6 (Good)

SO2 1 (Good)

CO 275 (Good)

Data on air pollution from recent days in Bissau

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 14
Moderate
8
Good
4
Good
2
Good
4
Good
5
Good
12
Good
8
Good
pm10 21
Moderate
13
Good
6
Good
3
Good
6
Good
7
Good
26
Moderate
13
Good
o3 46
Good
36
Good
35
Good
43
Good
34
Good
35
Good
38
Good
32
Good
no2 3
Good
2
Good
1
Good
1
Good
1
Good
1
Good
2
Good
1
Good
so2 1
Good
1
Good
0
Good
0
Good
0
Good
0
Good
1
Good
1
Good
co 186
Good
189
Good
164
Good
150
Good
169
Good
151
Good
155
Good
194
Good
data source »

Bissau

Thursday, August 27, 2026 at 1:00 AM

PM2,5 19 (Moderate)

particulate matter (PM2.5) dust

PM10 27 (Moderate)

particulate matter (PM10) suspended dust

O3 26 (Good)

ozone (O3)

NO2 5.5 (Good)

nitrogen dioxide (NO2)

SO2 1.4 (Good)

sulfur dioxide (SO2)

CO 275 (Good)

carbon monoxide (CO)

Bissau

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 7.6 12 5 4.1 2.2 4.3 7.8 14
pm10 13 26 7.2 5.9 3.4 5.5 13 21
o3 32 38 35 34 43 35 36 46
no2 1.4 2 1 1.1 0.91 1.1 1.7 2.8
so2 0.51 0.58 0.44 0.4 0.26 0.42 0.57 0.9
co 194 155 151 169 150 164 189 186

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

🌦️ Weather · 16-day Forecast — Bissau

🌦️ WEATHER · 16-DAY FORECASTBissau🌧️26°RainToday · ↑28° ↓24°💨 6 km/h · 💧 85%Mon24.08🌧️28°24°Tue25.08🌧️28°25°Wed26.08🌧️29°26°Thu27.08🌧️26°22°Fri28.08🌧️28°25°Sat29.08🌧️27°24°Sun30.08🌧️28°25°Mon31.08🌧️29°25°Tue1.09🌧️30°26°Wed2.09🌧️27°25°Thu3.09🌧️29°25°Fri4.09🌧️30°26°Sat5.09🌧️29°26°Sun6.09🌧️29°25°Mon7.09🌧️27°25°Tue8.09🌧️29°25°pollution-alert.com · August 27, 2026

16-day weather forecast for Bissau: today around 28°C (rain), lows near 24°C. Daily temperature and conditions, updated every day. Strong wind (about 23 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Bissau

☀️ UV INDEX · 16-DAY FORECASTBissau03681111+8.5UV VERY HIGHtoday, day maxSPF 50, long sleeves and shade between 10:00-16:00.⏱ Unprotected fair skin can burn in about 25 min9Wed26.087Thu27.088Fri28.088Sat29.089Sun30.088Mon31.089Tue1.099Wed2.099Thu3.099Fri4.097Sat5.093Sun6.098Mon7.099Tue8.095Wed9.099Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in Bissau today is 8.5 (very high) — unprotected fair skin can burn in about 25 minutes.

Frequently asked questions

Is the air safe to breathe in Bissau today?
The current average PM2.5 across Bissau is about 19 µg/m³, rated “Moderate”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.
What is the current PM2.5 level in Bissau?
Right now PM2.5 in Bissau averages about 19 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which day last week had the worst air in Bissau?
Over the past week, the highest daily PM2.5 in Bissau was recorded on Thursday, August 27 (about 14 µg/m³).
What is the UV index in Bissau today?
The UV index in Bissau today is 8.5 (very high) — unprotected fair skin can burn in about 25 minutes.
Does today's wind help disperse smog in Bissau?
Strong wind (about 23 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.