Singapore
Air quality in Singapore is unhealthy. Avoid prolonged outdoor exertion.
Data from Open-Meteo • Updated 3:16:40 PM
Singapore's air is usually fine for running, helped by strict environmental regulations, but seasonal haze from regional fires can cause sharp pollution spikes. The tropical climate brings year-round heat and humidity, and strong sunshine can drive ozone formation. Runners should monitor conditions closely during the haze season from June to October.
Based on hourly averages, 2023–2025 · Data: Open-Meteo / CAMS
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<a href="https://www.aeriqo.app/cities/singapore"><img src="https://www.aeriqo.app/api/badge/singapore" width="300" height="64" alt="Live air quality in Singapore (Aeriqo)" loading="lazy"></a>
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Try it freeOutside of haze episodes, Singapore typically sees AQI readings between 55 and 80, placing it in the Moderate range. During haze events (most likely June to October, often worst in September and October), readings can spike above 200, prompting health advisories.
There is no clearly cleanest season: monthly averages stay in the Moderate range all year. The main thing to plan around is haze, most likely from June to October. Early morning runs beat the heat, and Gardens by the Bay and the Southern Ridges trail offer excellent routes. Monitor the NEA PSI during haze season.
Local sources include vehicle emissions, industrial activity, and shipping in one of the world’s busiest ports. The most significant pollution events come from transboundary haze caused by agricultural burning and peatland fires in Indonesia, most likely between June and October.
The Southern Ridges trail, MacRitchie Reservoir, and Gardens by the Bay offer excellent running with cleaner air. East Coast Park benefits from sea breezes. The Rail Corridor (the former Keretapi Tanah Melayu railway line) provides a car-free route through greenery. During haze events, indoor tracks at sports complexes are a good alternative.
Transboundary haze from Indonesian fires is most likely from June to October, during the Southwest Monsoon (June–September) and the start of the inter-monsoon that follows. It is often worst in September and October. When haze strikes, the PSI can exceed 200 for days. In the month-by-month averages on this page the differences are modest, with April usually the highest. Outside haze episodes, air quality usually stays in the Moderate range, which is fine for most runners.
Check the current AQI at the top of this page for real-time conditions. Outside of haze events, Singapore’s air is usually fine for running. During haze season (June to October), conditions can change rapidly. Always check before heading out and have an indoor backup plan.
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