San José air quality · Costa Rica
Clean overnight air is linked to deeper, less interrupted sleep
US AQI 26 (Good) in San José, from 1 official monitoring station. Main pollutant: PM2.5.
Updated
Pollutants in San José
- PM2.5 · µg/m³4.6Under WHO limit
Concentrations averaged across the city's stations. WHO multiples use the 2021 24-hour guidelines.
Is it safe outside in San José right now?
Air quality is satisfactory and poses little or no risk.
Walking and commuting
Go aheadEnjoy it.
Running and jogging
Go aheadA great time to run outdoors.
Cycling
Go aheadRide freely.
Children playing outside
Go aheadNo limits.
Older adults and heart or lung conditions
Go aheadNo limits.
Open windows
Go aheadAir out your home.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededNot needed.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
What US AQI 0–50 means for your health →
San José air quality: common questions
What is the AQI in San José right now?
The US AQI in San José is 26 (Good). The main pollutant is PM2.5.
Is it safe to go outside in San José today?
A great time to be outside. Air quality is satisfactory and poses little or no risk. For runners: A great time to run outdoors.
Where does San José's air quality data come from?
From Government and research monitoring stations via OpenAQ and national networks, using 1 monitoring station in and around the city. Good Air does not estimate or adjust these readings.
Source: Government and research monitoring stations via OpenAQ and national networks. Readings are published by the monitoring agency and may be revised.