Pollen count in Westport today

Westport usually gets less pollen than the Mayo forecast suggests, because air off the sea carries less pollen. In 2026 it had 8 High or Very high days, against 12 in the Mayo forecast.

Hay fever symptoms in Westport are influenced by the county's hilly terrain and coastal location. Mayo's exposed Atlantic coast and extensive boglands mean generally low pollen levels. However, the sheltered areas around Westport and Castlebar can trap allergens. Common symptoms include sneezing, runny or blocked nose, itchy and watery eyes, and an itchy throat. The frequent rainfall can provide some relief, though humid conditions may support mould spores. The rural setting means exposure to agricultural pollen sources is common during farming activities.

Atlantic influence means tree pollen season runs from February to May, often interrupted by rain. In Westport, the key local trees are birch, willow, rowan, which affect spring pollen levels. Grass pollen season peaks in June and July, with the Croagh Patrick and Clew Bay contributing to local concentrations. Weed pollen, including nettle and dock, can be present from June to September. Our daily forecasts help you track these changing conditions throughout the seasons.

Atlantic weather systems bring frequent rain that washes pollen from the air. The county is one of Ireland's windiest, keeping airborne allergens low. Sea breezes along the coast can help disperse pollen, making coastal areas preferable during high pollen days. Warm, dry, and windy days typically see higher pollen counts as conditions favour pollen release and dispersal. The regular rainfall in Westport often provides natural relief by washing pollen from the air.

Yes, rain generally reduces airborne pollen levels in Westport by washing particles from the air. The county's frequent rainfall means you'll often get natural pollen relief, though humidity can increase mould spore levels in areas like Croagh Patrick. However, thunderstorms can break pollen grains into smaller particles that penetrate deeper into the lungs. Light, steady rain is best for pollen relief. Check our daily forecast to plan activities around weather patterns.

The islands of Clew Bay and the Mullet Peninsula offer excellent low-pollen environments. Westport has good facilities for the region. General tips include checking our daily pollen forecast before planning outdoor activities, staying indoors during peak pollen times (usually mid-morning and early evening), wearing wraparound sunglasses outdoors, and showering after being outside. The coastal areas of Westport typically have lower pollen levels, especially when sea breezes are blowing. Consult your pharmacist or GP about antihistamines and other treatments tailored to your symptoms.