SmogRank / Canada / British Columbia / Central Saanich

Central Saanich, month by month

Central Saanich has a measured daily mean on 54 days since 5 August 2026. Its worst month was September 2026, at 23 US AQI (4.2 µg/m³), 2,676th of 2,981 cities on that month's world ranking.

Every month since 2026

2026too few days for a mean (a year needs 199)54 days measured

JanFebMarAprMayJunJulAug21 daysSep23#2,676Oct6 days

Each square is a month's mean PM2.5 in US AQI from Central Saanich'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 Central Saanich 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

2 months

Month	Why
Oct 2026	6 of 11 days measured; a month needs 8. The others: 2 with no readings from the monitors, 2 with readings for part of the day (a day needs 18 hours), 1 with readings left out by our checks.
Aug 2026	21 of 31 days measured; a month needs 22. The others: 6 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.

Central Saanich's worst months

Month	US AQI	Days measured	World rank
September 2026	234.2 µg/m³	27 of 30	2,676thof 2,981

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.

Central Saanich's worst days

Day	US AQI
22 Sept 2026	13448.8 µg/m³
23 Sept 2026	10336.5 µg/m³
5 Aug 2026	10035.2 µg/m³
6 Aug 2026	9030.2 µg/m³
7 Aug 2026	6818.4 µg/m³
25 Aug 2026	6014.1 µg/m³
21 Aug 2026	5812.7 µg/m³
17 Aug 2026	417.4 µg/m³
18 Aug 2026	386.8 µg/m³
21 Sept 2026	285.1 µg/m³

Daily means, the highest since 5 Aug 2026; 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, Central Saanich, Canada, 5 Aug 2026 – 8 Oct 2026. Monitor data from AirGradient via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/ca/central-saanich/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.

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

Updated 2026-10-12 22:07 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).