Smog in São Tomé and Príncipe Today — Live Data: City AQI, PM2.5 & PM10, Weather Warnings and Forecast

📍 Locations The latest data Last 7 days ☀️ UV Index 🌊 Sea Temperature 🌦️ Weather ❓ FAQ

Locations

Port-Gentil

16 PM2.5 µg/m³

Moderate

PM10 22 NO₂ 0.8 O₃ 61

Current data Thursday, August 27, 2026 at 2:00 AM

PM2,5 16 (Moderate)

PM10 22 (Moderate)

O3 61 (Good)

NO2 1 (Good)

SO2 1 (Good)

CO 241 (Good)

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
PM2,5	13 Moderate	13 Moderate	15 Moderate	15 Moderate	23 Moderate	14 Moderate	13 Moderate	16 Moderate
PM10	17 Good	16 Good	20 Moderate	19 Good	27 Moderate	17 Good	18 Good	19 Good
O3	63 Good	66 Good	65 Good	66 Good	75 Moderate	74 Moderate	69 Good	70 Moderate
NO2	1 Good	1 Good	1 Good	1 Good	1 Good	1 Good	1 Good	1 Good
SO2	1 Good	1 Good	1 Good	1 Good	1 Good	1 Good	1 Good	1 Good
CO	261 Good	223 Good	237 Good	278 Good	259 Good	213 Good	260 Good	270 Good

data source »

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

Frequently asked questions

Is the air safe to breathe in São Tomé and Príncipe today?

The current average PM2.5 across São Tomé and Príncipe is about 16 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 São Tomé and Príncipe?

Right now PM2.5 in São Tomé and Príncipe averages about 16 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

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.

☀️ UV Index · 16-day Forecast — São Tomé and Príncipe

The UV index in São Tomé and Príncipe today is 8.9 (very high) — unprotected fair skin can burn in about 20 minutes.

🌊 Sea Temperature · 16-day Forecast — São Tomé and Príncipe

The sea temperature at São Tomé and Príncipe today is about 26°C.

🌊 Sea Temperature By Month — São Tomé and Príncipe

30° Jan

30° Feb

30° Mar

30° Apr

30° May

28° Jun

27° Jul

27° Aug

27° Sep

28° Oct

28° Nov

29° Dec

The sea around São Tomé and Príncipe is warmest in March (about 30°C) and coldest in August (about 27°C) — long-term monthly averages.

🌦️ Weather · 16-day Forecast — São Tomé and Príncipe

16-day weather forecast for São Tomé and Príncipe: today around 26°C (rain), lows near 25°C. Daily temperature and conditions, updated every day.