UK households are being advised to keep windows and doors closed as much as possible, particularly between 10am and 3pm, as spring brings the start of hay fever season. Tree pollen season is already underway, followed by grass pollen until July and weed pollen until September.
The Met Office has warned that birch pollen levels are likely to be particularly high this season due to last year's warm spring and summer. 2024 saw the warmest meteorological spring and May since records began in 1884, creating ideal conditions for pollen production.
Hay fever symptoms, including sneezing, runny nose, itchy eyes and headaches, are usually worse between late March and September, especially in warm, humid and windy weather, according to the NHS. Keeping windows and doors closed is one of the most effective ways to reduce symptoms by preventing pollen from entering the home.
DIY expert Glen Peskett from Saxton Blades advises households to close windows and doors between 10am and 3pm, particularly on breezy days, as this is when pollen counts peak. "It's important to get fresh air... however, during peak pollen times... it's extremely beneficial to keep your windows and doors shut," he said.
