
25 September 2025
In Victoria, the grass pollen season usually runs from 1 October to 31 December. During this time, you may notice an increase in asthma and hay fever. The season also brings the chance of thunderstorm asthma.
People at risk of thunderstorm asthma include those with:
- Current or past asthma
- Undiagnosed asthma
- Springtime hay fever (noting in south-east Australia, springtime hay fever is often triggered by grass pollen).
The risk is even higher for people who have both asthma and hay fever, especially if their asthma is poorly controlled.
Useful resources for health professionals
Thunderstorm Asthma – QI Activity Webinar
View webinarThunderstorm Asthma – QI Toolkit
View resourceThunderstorm Asthma – PDSA Template
View resourceThunderstorm Asthma – POLAR Walkthrough
View resourceThunderstorm Asthma – Healthpathways Melbourne
View resourceNational Asthma Council’s Australian Asthma Handbook
View resourceLaunch of the National Asthma Council’s Australian Asthma Handbook webinar
View webinarVictorian Department of Health resources
Visit the Better Health website for information on thunderstorm asthma including useful information for your patients such as explainer videos, protection tips, asthma first aid and case studies
Upcoming events
Asthma in Spring – Allergies and Thunderstorm Asthma
By National Asthma Council Australia