SmogRank / Norway / Agder / Kristiansand

Kristiansand, month by month

Kristiansand has a measured daily mean on 724 days since 1 January 2023. Its worst month was February 2025, at 58 US AQI (12.6 µg/m³), 980th of 2,633 cities on that month's world ranking. Its cleanest was July 2024, at 22 US AQI (3.9 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)0 days measured
JannoneFebnoneMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOctnone
2025too few days for a mean (a year needs 256)248 days measured
Jan56#753Feb58#980Mar52#1,703Apr34#2,263May32#2,014Jun33#2,196Jul42#1,887Aug3 daysSep27#2,646Oct9 daysNovnoneDecnone
202440 for the year332 days measured1,395th of 2,097 in the world
Jan55#742Feb38#1,531Mar49#602Apr29#1,887May37#1,795Jun32#2,080Jul22#2,454Aug36#1,654Sep45#809Oct13 daysNov51#1,032Dec43#1,431
2023too few days for a mean (a year needs 256)144 days measured
Jan46#660Feb52#697Mar25#843Apr17 daysMay16 daysJun11 daysJul5 daysAug2 daysSep4 daysOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Kristiansand's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Kristiansand marked; each year, the year's.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Months without a mean, and why

24 months
MonthWhy
Oct 2026No day measured.
Sep 2026No day measured.
Aug 2026No day measured.
Jul 2026No day measured.
Jun 2026No day measured.
May 2026No day measured.
Apr 2026No day measured.
Mar 2026No day measured.
Feb 2026No day measured.
Jan 2026No day measured.
Dec 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 20259 of 31 days measured; a month needs 22. The others: 22 with under 18 hours of readings or readings that failed our checks.
Aug 20253 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Oct 202413 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks.
Dec 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 20234 of 30 days measured; a month needs 21. The others: 26 with under 18 hours of readings or readings that failed our checks.
Aug 20232 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks.
Jul 20235 of 31 days measured; a month needs 22. The others: 26 with under 18 hours of readings or readings that failed our checks.
Jun 202311 of 30 days measured; a month needs 21. The others: 19 with under 18 hours of readings or readings that failed our checks.
May 202316 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Apr 202317 of 30 days measured; a month needs 21. The others: 3 missing from OpenAQ's archive, 10 with under 18 hours of readings or readings that failed our checks.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Kristiansand's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2025 5812.6 µg/m³28 of 28980thof 2,633Europe, 14 February to 1 March 2025
January 2025 5611.7 µg/m³31 of 31753rdof 2,474–
January 2024 5511.5 µg/m³26 of 31742ndof 2,385–
February 2023 529.5 µg/m³28 of 28697thof 1,129–
March 2025 529.4 µg/m³31 of 311,703rdof 2,862Germany, Poland and 25 more countries, March 2025
Europe, 14 February to 1 March 2025
November 2024 519.2 µg/m³30 of 301,032ndof 2,624–

Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.

Kristiansand's worst days

DayUS AQIEpisode
22 Feb 2025 10236.0 µg/m³Europe, 14 February to 1 March 2025
15 Feb 2023 9130.5 µg/m³–
7 Mar 2025 9130.5 µg/m³Germany, Poland and 25 more countries, March 2025
14 Feb 2023 8024.7 µg/m³–
4 Jan 2025 7823.8 µg/m³–
8 Jan 2025 7823.8 µg/m³–
3 Feb 2025 7823.5 µg/m³–
9 Jan 2024 7522.0 µg/m³–
13 Dec 2024 7522.0 µg/m³–
10 Jan 2024 7521.8 µg/m³–

Daily means, the highest since 1 Jan 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, Kristiansand, Norway, 1 Jan 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/no/kristiansand/history (accessed 12 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Kristiansand now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 20:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).