Why is my hay fever so bad this year?
Your hay fever is worse this year because unusually warm and dry weather in late February 2026 triggered an early surge in tree pollen levels across the UK. This created ideal conditions for trees like alder and hazel to release more pollen weeks ahead of the normal March start. The sudden shift from weeks of rain to sunny, breezy days has intensified pollen release nationally.
Key points:
- Warm temperatures up to 18.6C advanced tree flowering and pollen output.
- Dry, windy conditions spread pollen further and faster.
- Climate change is causing earlier and longer hay fever seasons.
- Higher overall pollen levels this year from recent weather patterns.
This text has been fact-checked for accuracy by medino's clinical team.