Adelaide could see a high grass pollen season this spring
04 Sep 2026
The forecast comes after a wetter-than-usual end to winter. Adelaide received 98.6 mm of rain in August 2026, which was more than double the rainfall recorded in August 2025 and about 60 per cent above the long-term August average. Much of southern South Australia also has wetter soil than at the same time last year, while satellite images show increased vegetation and grass growth ahead of spring.
AirHealth says the weather over the coming weeks will play an important role in determining how severe the pollen season becomes. If the current soil moisture continues through September and early October, grass may have more time to grow and flower. Once flowering occurs, warm, dry and windy conditions can help release pollen and spread it through the air.
Dr Edwin Lampugnani, CEO of AirHealth, said the current conditions could lead to a significant grass pollen season in Adelaide.
He encouraged people with hay fever or asthma to take steps early rather than waiting for pollen levels to rise.
Asthma Australia CEO Kate Miranda said grass pollen can cause asthma symptoms and attacks in people who are sensitive to it. She also encouraged people with asthma to prepare before spring pollen levels increase.
People with asthma should check that their Asthma Action Plan is current, use their preventer medicine as prescribed and carry their reliever medicine. Anyone whose asthma is not well controlled, or who is unsure about their treatment, should speak with their GP or pharmacist.
Checking daily pollen forecasts can also help people plan outdoor activities and reduce exposure when pollen levels are high. Extra care may be needed on windy days and around thunderstorms.
How to prepare
- Use the AirRater app to check daily pollen forecasts and receive alerts when pollen levels are high.
- Make sure your Asthma Action Plan is up to date.
- Take your asthma preventer as prescribed and keep your reliever medicine with you.
- Speak with an Asthma Australia Asthma Educator by calling 1800 ASTHMA (1800 278 462) for free information and support.
- Talk to your GP or pharmacist if your asthma symptoms are increasing or you need advice about managing hay fever and asthma together.
- Learn what to do during an asthma emergency and make sure people around you know how to provide asthma first aid.
- Reduce outdoor exposure when pollen levels are high, particularly during windy weather and thunderstorms.
AirHealth and Asthma Australia provide information about pollen and other environmental triggers to help people with asthma and allergies understand risks, reduce exposure and manage their health.
Where to get more information
The AirRater app provides daily information on pollen, air quality, smoke and temperature. It also allows users to record symptoms and compare them with environmental conditions.
Adelaide could see a high grass pollen season this spring
Source: Asthma Australia and AirHealth