Pollen & air quality

Weed pollen season usually runs from June to September, after tree and grass pollen seasons begin.

Grass pollen season runs from May to July and usually peaks through June and July.

Scottish midge season runs from May to September, with the worst months usually June to August.

Mould spores usually peak from July to September and can trigger asthma or hay fever-like symptoms.

UK hay fever season runs from February to September, with grass pollen the main trigger from May to July.

Tree pollen season usually runs from February to May, with birch pollen highest in spring.

UK UV levels most often require sun protection from April to September, peaking in June and July.