Pollen count in Dundalk today

Dundalk usually follows the Louth forecast closely, but some days differ, so it has its own forecast. In 2026 it had 25 High or Very high days, against 25 in the Louth forecast.

Hay fever symptoms in Dundalk are influenced by the county's low-lying landscape and coastal location. Ireland's smallest county has diverse conditions: the Cooley Mountains create shelter for pollen, while the Irish Sea coast enjoys cleaner maritime air. Common symptoms include sneezing, runny or blocked nose, itchy and watery eyes, and an itchy throat. During prolonged dry spells, symptoms may be more persistent. The rural setting means exposure to agricultural pollen sources is common during farming activities.

Tree pollen season typically runs from February to May. In Dundalk, the key local trees are oak, beech, sycamore, which affect spring pollen levels. Grass pollen season peaks in June and July, with the Cooley Peninsula and Boyne Valley 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.

The Irish Sea moderates temperatures and brings easterly breezes that can carry pollen from Britain during certain weather patterns. 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. During dry spells, pollen levels can build up over several days.

Yes, rain generally reduces airborne pollen levels in Dundalk by washing particles from the air. During the drier periods common in Dundalk, rain showers provide welcome relief. 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 beaches at Clogherhead and Blackrock offer low-pollen alternatives to inland walks. Drogheda and Dundalk have good pharmacy and GP access. 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 Dundalk 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.