Air quality
Air quality in Saint Petersburg today
Updated
Moderate (US AQI 58) Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. Model estimate for Sun, Oct 25, 9:00 pm (18:00 UTC).
Live AQI, PM2.5, PM10 and ozone for Saint Petersburg, St. Petersburg, Russia, with a 48-hour forecast and the best time to be outside.
- US AQI now
- 58 Moderate
- PM2.5
- 14 µg/m³ 0.9× WHO 24-h guideline
- PM10
- 18 µg/m³
- Ozone
- 26 µg/m³
- Dominant pollutant
- PM2.5 sub-index 58
- Best hour tomorrow
- 6:00 am AQI 58
- European AQI
- 41
Air quality in Saint Petersburg right now
Right now the modelled US Air Quality Index for Saint Petersburg, St. Petersburg, Russia is 58, which falls in the "Moderate" band (up to 100). Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors.
The index is driven mainly by PM2.5, whose own sub-index is 58. Fine and coarse particles come from traffic, heating, industry, dust and smoke; they build up on calm nights and clear when wind or rain arrives.
PM2.5 is 14 µg/m³, within the WHO 24-hour guideline of 15 µg/m³; PM10 is 18 µg/m³ against a guideline of 45; ozone is 26 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 27 µg/m³ (above the 24-hour guideline of 25).
Also this hour: carbon monoxide 219 µg/m³.
Saint Petersburg AQI forecast: next 48 hours
Over the next 24 hours the AQI is forecast to range from 58 around Sun 9:00 pm to 66 around Mon 8:00 pm, staying "Moderate" throughout.
The following day looks similar, averaging about 64.
| Local time (Europe/Moscow) | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Sun 9:00 pm | 58 | Moderate | 13.7 | 18 | 26 |
| Mon 12:00 am | 58 | Moderate | 12.3 | 16 | 43 |
| Mon 3:00 am | 58 | Moderate | 12.9 | 22 | 42 |
| Mon 6:00 am | 58 | Moderate | 17.8 | 30 | 34 |
| Mon 9:00 am | 60 | Moderate | 21.1 | 29 | 13 |
| Mon 12:00 pm | 61 | Moderate | 18.5 | 21 | 27 |
| Mon 3:00 pm | 63 | Moderate | 19.4 | 22 | 25 |
| Mon 6:00 pm | 64 | Moderate | 23.3 | 26 | 8 |
| Mon 9:00 pm | 66 | Moderate | 17.5 | 19 | 16 |
| Tue 12:00 am | 67 | Moderate | 12.1 | 14 | 27 |
| Tue 3:00 am | 66 | Moderate | 6.9 | 10 | 32 |
| Tue 6:00 am | 65 | Moderate | 10.7 | 13 | 33 |
| Tue 9:00 am | 63 | Moderate | 21.6 | 26 | 3 |
| Tue 12:00 pm | 63 | Moderate | 13.3 | 20 | 28 |
| Tue 3:00 pm | 61 | Moderate | 11.6 | 19 | 30 |
| Tue 6:00 pm | 60 | Moderate | 20.7 | 30 | 6 |
| Tue 9:00 pm | 59 | Moderate | 13.2 | 19 | 9 |
Every third hour of the CAMS forecast via Open-Meteo. US AQI uses rolling averages (24 h for particles, 8 h for ozone), so it moves more slowly than the hourly concentrations.
Best time to be outside in Saint Petersburg tomorrow
Between 6 am and 9 pm local time, the cleanest air tomorrow is forecast around 6:00 am (AQI 58, Moderate) and the worst around 8:00 pm (AQI 66). The difference across the day is small, so timing matters little.
Saint Petersburg vs the rest of Russia
Across 76 Russia cities we track, the average US AQI right now is 46 (Good). Saint Petersburg at 58 is 12 points worse than average.
It ranks 55 of 76 from cleanest to most polluted; the cleanest is Kirov (16) and the most polluted Ufa (90).
For context, the median across 3,909 cities worldwide is 57.
Air quality in cities near Saint Petersburg
| City | Distance | US AQI | Category | PM2.5 µg/m³ |
|---|---|---|---|---|
| Vantaa | 295 km | 30 | Good | 4.2 |
| Joensuu | 298 km | 27 | Good | 8.2 |
| Helsinki | 300 km | 30 | Good | 4.2 |
| Petrozavodsk | 300 km | 45 | Good | 8.3 |
| Espoo | 315 km | 30 | Good | 4.6 |
| Tallinn | 317 km | 37 | Good | 6.2 |
Model vs measured
The nearest measured PM2.5 reading is 5.1 µg/m³ from Sensor.Community (median of 4 sensors), centred about 11 km from the city centre. That is 8.6 µg/m³ below the model estimate of 14 µg/m³. Low-cost sensors can read high in humid air; reference monitors are more accurate but sparser.
Advice for sensitive groups
At 58, most people are fine outdoors. If you are unusually sensitive to PM2.5, keep long or intense workouts to the cleaner hours shown above.
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Values on this page are modelled by CAMS (Copernicus) and served by Open-Meteo; they are estimates for the area around the city centre, not readings from an official monitor.
Nearby cities
More for Saint Petersburg
Air quality elsewhere
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), Sensor.Community.