As temperatures rise, people with asthma should be aware of seasonal triggers that can worsen symptoms. Karen Spillett, deputy head of health advice at Asthma + Lung UK, highlights five key summer triggers and offers advice on how to manage them.
Warm weather can cause airways to narrow, leading to coughing and shortness of breath. Thunderstorms can also trigger asthma attacks, especially in those with hay fever or poorly controlled asthma. Keeping an eye on the weather forecast and carrying a reliever inhaler are recommended.
Pollen season peaks in summer, with hay fever often exacerbating asthma symptoms such as wheezing and chest tightness. Checking pollen levels and exercising early or late in the day can help reduce exposure. Air pollution, particularly ozone, can also rise in strong sunshine, so staying away from congested areas is advisable.
Barbecue smoke is another common trigger, as it irritates sensitive airways. Avoiding direct smoke and ensuring good ventilation can minimise risks. Mould and dust remain problematic, especially in camping gear; cleaning equipment thoroughly before use is essential.
Spillett suggests keeping a symptom diary and using a peak flow meter to identify personal triggers. Following an asthma action plan and taking medications as prescribed are crucial for staying well during summer.



