When is hay fever season in the UK?
Hay fever season in the UK typically runs from late March to September. It can start as early as late January or February in mild weather, depending on the type of pollen involved. Those allergic to multiple pollens may have symptoms from late winter through to early autumn.
Key points:
- Tree pollen season is mainly mid-March to mid-May.
- Grass pollen, the most common type, runs from mid-May to July or early August.
- Weed pollen season is late June to September.
- Weather affects timing, with milder conditions bringing earlier starts.
This text has been fact-checked for accuracy by medino's clinical team.