SmogRank / Poland / Pomerania

Air quality in Gdynia

Pomerania, Poland. PM2.5 from 1 reference monitor, updated hourly.

14.9 µg/m³
Moderate

Latest hour (21:00 UTC), 1.0× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
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not enough data
30 days
–
not enough data
Year
–
not enough data

Why it ranks here

Seasonal. Over the past year its worst months were January, averaging up to 31.5 µg/m³ against 8.6 in its cleanest month. Seasonal peaks usually come from heating, crop burning, fire or dust seasons.

Based on Gdynia's own measurements; causes are the usual kinds for a pattern like this, not a confirmed source.

Last 4 days, hour by hour

15302026-09-30 21:00 UTC: 14.9 µg/m³Sep 28Sep 29Sep 30Oct 1

Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Every day for a year

SepNovDecJanFebMarAprMayJunJulAugSepMonWedFri2025-09-29: 5.4 µg/m³2025-09-30: 13.4 µg/m³2025-10-01: 18.0 µg/m³2025-10-02: 10.6 µg/m³2025-10-03: 15.9 µg/m³2025-10-04: 21.8 µg/m³2025-10-05: 10.5 µg/m³2025-10-06: 7.7 µg/m³2025-10-07: 15.7 µg/m³2025-10-08: 15.5 µg/m³2025-10-09: 7.4 µg/m³2025-10-10: 8.1 µg/m³2025-10-11: 8.5 µg/m³2025-10-12: 5.9 µg/m³2025-10-13: 5.4 µg/m³2025-10-14: 6.5 µg/m³2025-10-15: no data2025-10-16: no data2025-10-17: no data2025-10-18: no data2025-10-19: no data2025-10-20: 16.0 µg/m³2025-10-21: 23.2 µg/m³2025-10-22: 34.6 µg/m³2025-10-23: 30.9 µg/m³2025-10-24: 15.4 µg/m³2025-10-25: 9.7 µg/m³2025-10-26: 9.2 µg/m³2025-10-27: 8.6 µg/m³2025-10-28: 6.3 µg/m³2025-10-29: 12.5 µg/m³2025-10-30: 15.1 µg/m³2025-10-31: 8.2 µg/m³2025-11-01: 22.3 µg/m³2025-11-02: 24.4 µg/m³2025-11-03: 17.4 µg/m³2025-11-04: 15.5 µg/m³2025-11-05: 17.9 µg/m³2025-11-06: no data2025-11-07: no data2025-11-08: 43.6 µg/m³2025-11-09: 25.1 µg/m³2025-11-10: 19.9 µg/m³2025-11-11: 20.7 µg/m³2025-11-12: 19.1 µg/m³2025-11-13: 14.6 µg/m³2025-11-14: 7.6 µg/m³2025-11-15: 7.7 µg/m³2025-11-16: 22.0 µg/m³2025-11-17: 8.3 µg/m³2025-11-18: 8.3 µg/m³2025-11-19: 14.0 µg/m³2025-11-20: 29.8 µg/m³2025-11-21: 5.4 µg/m³2025-11-22: 10.1 µg/m³2025-11-23: 27.3 µg/m³2025-11-24: 32.6 µg/m³2025-11-25: 34.0 µg/m³2025-11-26: 8.3 µg/m³2025-11-27: 8.6 µg/m³2025-11-28: no data2025-11-29: no data2025-11-30: no data2025-12-01: no data2025-12-02: 24.2 µg/m³2025-12-03: 26.3 µg/m³2025-12-04: 33.5 µg/m³2025-12-05: 29.5 µg/m³2025-12-06: 36.2 µg/m³2025-12-07: 30.6 µg/m³2025-12-08: 25.5 µg/m³2025-12-09: 16.7 µg/m³2025-12-10: 14.5 µg/m³2025-12-11: 10.8 µg/m³2025-12-12: 10.9 µg/m³2025-12-13: 13.8 µg/m³2025-12-14: 7.4 µg/m³2025-12-15: 17.3 µg/m³2025-12-16: 32.1 µg/m³2025-12-17: 37.0 µg/m³2025-12-18: 29.8 µg/m³2025-12-19: 27.2 µg/m³2025-12-20: 11.8 µg/m³2025-12-21: 9.8 µg/m³2025-12-22: 17.0 µg/m³2025-12-23: 8.7 µg/m³2025-12-24: 6.5 µg/m³2025-12-25: 20.6 µg/m³2025-12-26: 9.6 µg/m³2025-12-27: 5.8 µg/m³2025-12-28: 5.1 µg/m³2025-12-29: 5.5 µg/m³2025-12-30: 6.4 µg/m³2025-12-31: 14.0 µg/m³2026-01-01: no data2026-01-02: no data2026-01-03: 7.0 µg/m³2026-01-04: 8.4 µg/m³2026-01-05: 18.8 µg/m³2026-01-06: 31.4 µg/m³2026-01-07: no data2026-01-08: no data2026-01-09: no data2026-01-10: no data2026-01-11: no data2026-01-12: 16.4 µg/m³2026-01-13: no data2026-01-14: 37.4 µg/m³2026-01-15: 17.7 µg/m³2026-01-16: 46.3 µg/m³2026-01-17: no data2026-01-18: 40.6 µg/m³2026-01-19: no data2026-01-20: 79.2 µg/m³2026-01-21: 68.4 µg/m³2026-01-22: 64.5 µg/m³2026-01-23: 23.7 µg/m³2026-01-24: 25.5 µg/m³2026-01-25: 33.8 µg/m³2026-01-26: 33.9 µg/m³2026-01-27: 30.1 µg/m³2026-01-28: 18.6 µg/m³2026-01-29: 11.9 µg/m³2026-01-30: 17.3 µg/m³2026-01-31: no data2026-02-01: 18.4 µg/m³2026-02-02: 22.2 µg/m³2026-02-03: 16.3 µg/m³2026-02-04: 19.9 µg/m³2026-02-05: 30.4 µg/m³2026-02-06: 25.0 µg/m³2026-02-07: 26.2 µg/m³2026-02-08: 16.3 µg/m³2026-02-09: 29.5 µg/m³2026-02-10: 57.3 µg/m³2026-02-11: no data2026-02-12: 32.3 µg/m³2026-02-13: no data2026-02-14: 8.9 µg/m³2026-02-15: no data2026-02-16: 16.1 µg/m³2026-02-17: 20.7 µg/m³2026-02-18: 24.9 µg/m³2026-02-19: no data2026-02-20: no data2026-02-21: 24.6 µg/m³2026-02-22: 14.5 µg/m³2026-02-23: 12.4 µg/m³2026-02-24: 8.8 µg/m³2026-02-25: no data2026-02-26: no data2026-02-27: no data2026-02-28: no data2026-03-01: no data2026-03-02: 12.5 µg/m³2026-03-03: 19.5 µg/m³2026-03-04: 11.6 µg/m³2026-03-05: 11.0 µg/m³2026-03-06: 18.3 µg/m³2026-03-07: 37.8 µg/m³2026-03-08: 41.7 µg/m³2026-03-09: 30.3 µg/m³2026-03-10: 32.6 µg/m³2026-03-11: 40.7 µg/m³2026-03-12: no data2026-03-13: 16.6 µg/m³2026-03-14: 23.7 µg/m³2026-03-15: 17.6 µg/m³2026-03-16: 22.1 µg/m³2026-03-17: 18.7 µg/m³2026-03-18: 31.8 µg/m³2026-03-19: 19.3 µg/m³2026-03-20: 21.3 µg/m³2026-03-21: 15.9 µg/m³2026-03-22: 21.4 µg/m³2026-03-23: no data2026-03-24: 29.3 µg/m³2026-03-25: no data2026-03-26: no data2026-03-27: no data2026-03-28: 16.5 µg/m³2026-03-29: 16.7 µg/m³2026-03-30: 13.5 µg/m³2026-03-31: no data2026-04-01: 14.7 µg/m³2026-04-02: 17.4 µg/m³2026-04-03: 13.6 µg/m³2026-04-04: 12.1 µg/m³2026-04-05: 10.0 µg/m³2026-04-06: 11.1 µg/m³2026-04-07: 8.6 µg/m³2026-04-08: 9.4 µg/m³2026-04-09: 9.2 µg/m³2026-04-10: 14.5 µg/m³2026-04-11: 14.7 µg/m³2026-04-12: 14.3 µg/m³2026-04-13: 11.5 µg/m³2026-04-14: no data2026-04-15: no data2026-04-16: no data2026-04-17: no data2026-04-18: no data2026-04-19: no data2026-04-20: no data2026-04-21: no data2026-04-22: no data2026-04-23: no data2026-04-24: no data2026-04-25: no data2026-04-26: no data2026-04-27: no data2026-04-28: no data2026-04-29: no data2026-04-30: no data2026-05-01: no data2026-05-02: no data2026-05-03: no data2026-05-04: no data2026-05-05: no data2026-05-06: no data2026-05-07: no data2026-05-08: no data2026-05-09: no data2026-05-10: no data2026-05-11: no data2026-05-12: no data2026-05-13: no data2026-05-14: no data2026-05-15: no data2026-05-16: no data2026-05-17: no data2026-05-18: no data2026-05-19: no data2026-05-20: no data2026-05-21: no data2026-05-22: no data2026-05-23: no data2026-05-24: no data2026-05-25: no data2026-05-26: no data2026-05-27: no data2026-05-28: no data2026-05-29: no data2026-05-30: no data2026-05-31: no data2026-06-01: no data2026-06-02: no data2026-06-03: no data2026-06-04: 13.4 µg/m³2026-06-05: 9.7 µg/m³2026-06-06: no data2026-06-07: no data2026-06-08: no data2026-06-09: no data2026-06-10: no data2026-06-11: 6.5 µg/m³2026-06-12: no data2026-06-13: no data2026-06-14: 5.6 µg/m³2026-06-15: no data2026-06-16: 7.7 µg/m³2026-06-17: 10.4 µg/m³2026-06-18: 10.1 µg/m³2026-06-19: 9.9 µg/m³2026-06-20: 14.5 µg/m³2026-06-21: 17.1 µg/m³2026-06-22: 7.7 µg/m³2026-06-23: 8.7 µg/m³2026-06-24: 12.7 µg/m³2026-06-25: 9.4 µg/m³2026-06-26: 10.7 µg/m³2026-06-27: no data2026-06-28: 19.0 µg/m³2026-06-29: 14.2 µg/m³2026-06-30: 9.7 µg/m³2026-07-01: 7.4 µg/m³2026-07-02: 9.2 µg/m³2026-07-03: 8.9 µg/m³2026-07-04: 11.2 µg/m³2026-07-05: 9.7 µg/m³2026-07-06: 10.0 µg/m³2026-07-07: 6.3 µg/m³2026-07-08: 7.3 µg/m³2026-07-09: 6.6 µg/m³2026-07-10: 10.0 µg/m³2026-07-11: 10.4 µg/m³2026-07-12: no data2026-07-13: no data2026-07-14: 9.2 µg/m³2026-07-15: 12.9 µg/m³2026-07-16: 10.9 µg/m³2026-07-17: 13.9 µg/m³2026-07-18: 20.2 µg/m³2026-07-19: 13.8 µg/m³2026-07-20: 10.5 µg/m³2026-07-21: 7.7 µg/m³2026-07-22: 10.4 µg/m³2026-07-23: 9.8 µg/m³2026-07-24: 8.9 µg/m³2026-07-25: 11.0 µg/m³2026-07-26: 14.4 µg/m³2026-07-27: 10.8 µg/m³2026-07-28: 8.2 µg/m³2026-07-29: no data2026-07-30: 12.6 µg/m³2026-07-31: 14.7 µg/m³2026-08-01: 13.7 µg/m³2026-08-02: 8.0 µg/m³2026-08-03: 8.3 µg/m³2026-08-04: 9.9 µg/m³2026-08-05: 14.1 µg/m³2026-08-06: 10.8 µg/m³2026-08-07: 8.5 µg/m³2026-08-08: 7.7 µg/m³2026-08-09: 9.5 µg/m³2026-08-10: no data2026-08-11: 8.5 µg/m³2026-08-12: 7.7 µg/m³2026-08-13: 7.8 µg/m³2026-08-14: 8.7 µg/m³2026-08-15: 9.3 µg/m³2026-08-16: 7.9 µg/m³2026-08-17: no data2026-08-18: 8.1 µg/m³2026-08-19: 10.3 µg/m³2026-08-20: 10.1 µg/m³2026-08-21: 9.6 µg/m³2026-08-22: 7.2 µg/m³2026-08-23: no data2026-08-24: 7.3 µg/m³2026-08-25: 8.8 µg/m³2026-08-26: 12.0 µg/m³2026-08-27: 13.1 µg/m³2026-08-28: 12.2 µg/m³2026-08-29: 12.2 µg/m³2026-08-30: 8.4 µg/m³2026-08-31: no data2026-09-01: no data2026-09-02: 7.5 µg/m³2026-09-03: 9.9 µg/m³2026-09-04: no data2026-09-05: no data2026-09-06: 7.3 µg/m³2026-09-07: no data2026-09-08: no data2026-09-09: no data2026-09-10: 7.0 µg/m³2026-09-11: 7.0 µg/m³2026-09-12: 9.1 µg/m³2026-09-13: 11.5 µg/m³2026-09-14: no data2026-09-15: no data2026-09-16: no data2026-09-17: no data2026-09-18: 9.5 µg/m³2026-09-19: no data2026-09-20: 8.6 µg/m³2026-09-21: 6.8 µg/m³2026-09-22: no data2026-09-23: 5.7 µg/m³2026-09-24: 8.8 µg/m³2026-09-25: 8.6 µg/m³2026-09-26: 11.3 µg/m³2026-09-27: 10.1 µg/m³2026-09-28: no data2026-09-29: no data2026-09-30: no data
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

97 of 245 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#1993OctNovDecJanFebMarAprMayJunJulAugSep

Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15Jan 2025: 16.0 µg/m³Jan 2026: 31.5 µg/m³JanFeb 2025: 21.9 µg/m³Feb 2026: 22.4 µg/m³FebMar 2025: 20.3 µg/m³Mar 2026: 22.5 µg/m³MarApr 2025: 14.9 µg/m³Apr 2026: 12.4 µg/m³AprMay 2025: 9.5 µg/m³MayJun 2025: 10.3 µg/m³Jun 2026: 10.9 µg/m³JunJul 2025: 11.8 µg/m³Jul 2026: 10.6 µg/m³JulAug 2025: 10.8 µg/m³Aug 2026: 9.6 µg/m³AugSep 2025: 9.8 µg/m³Sep 2026: 8.6 µg/m³SepOct 2025: 13.4 µg/m³OctNov 2025: 18.6 µg/m³NovDec 2025: 18.1 µg/m³Dec

Faded bars: 2025. A month shows once it has 10 measured days.

This week against past years

This weekThis week: 9.7 µg/m³9.720252025: 7.1 µg/m³7.120242024: 10.0 µg/m³10.020232023: 15.8 µg/m³15.8

Mean PM2.5 for 24 Sept to 30 Sept in each year. Dashed line: WHO 24-hour guideline.

Monitors

StationOperatorType
Gdynia, ul. PorębskiegoODC-BYEEAReference

The city's value is the median of its reference monitors each hour; low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in Poland

Otwock 14.7Kalisz 12.2Radomsko 11.7Włocławek 11.2Radom 10.6Wrocław 10.4Starachowice 10.2Bielsko-Biala 10.2Pruszków 10.1Katowice 9.9Toruń 9.8Łódź 9.8

30-day averages, µg/m³. All of Poland →

Updated 2026-10-01 08:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.