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How long does hay fever season last in the UK?

Hay fever season in the UK typically lasts from early spring, around March, until late summer or early autumn, around September or October. The exact length varies by the type of pollen causing symptoms, with tree pollen from March to May, grass pollen from May to July or August, and weed pollen from June or August to September or October. People allergic to multiple pollens may experience symptoms across this entire period.

Key points:

• Hay fever season spans from March to September in most cases.
• Tree pollen affects early spring, mainly March to May.
• Grass pollen peaks from late spring to summer, May to July.
• Weed pollen occurs in late summer to autumn, August to October.

This text has been fact-checked for accuracy by medino's clinical team.