Seasonal coughs are usually triggered by environmental factors such as pollen, dust, or cold weather. During the spring and autumn months, allergens like tree and grass pollen are prevalent and can lead to allergic rhinitis or hay fever. This often results in post-nasal drip, throat irritation, and a dry, tickly cough.

Similarly, winter is a time when viral respiratory infections like the common cold or influenza are rampant. These infections typically cause acute coughs lasting less than three weeks and may be accompanied by sore throat, nasal congestion, and low-grade fever.

Seasonal changes can also worsen existing conditions like asthma, especially when the air is cold and dry, causing airway inflammation and a cough that’s often worse at night or early morning.