Pollen Count in Sligo

4-Day Chart
Annual Overview

📱 Know your air. Daily Sligo pollen levels on your iPhone.

In late winter and early spring, tree pollen starts first in Sligo. Hazel and alder often release pollen in February and March. Birch follows in April and May. These trees grow in parks, hedges, and woods around the county.

Updated: 7/25/2026

In late spring and early summer, grass pollen becomes common. This usually happens from May to July in Sligo. Many grasses release pollen in fields, lawns, and roadside areas. Ryegrass and meadow grasses are strong pollen sources during this time.

In summer, weed pollen can appear in some places. It is often highest from July to September. Plants like nettle, dock, and plantain release pollen. These grow in rough ground, garden edges, and along paths.

In autumn and winter, pollen levels are usually lower. Most trees and grasses stop releasing pollen then. A few plants may still give off small amounts on mild days. In Sligo, the quietest pollen time is usually from October to January.

Pollen Forecast Chart

Recommendations

When pollen concentrations reach a peak, we suggest these simple steps to help with hay fever. These tips are extra important on windy days when plants are in peak anthesis (the time when they release the most pollen).

Wear masks if necessary
Shower after going out
Wear sunglasses if windy
Close windows and doors
Use an indoor air purifier
Avoid wearing woolen clothes outside
Limit outdoor activities

Annual Pollen Overview

Check out this month-by-month overview of the daily average pollen count in Sligo 🌾. This data is based on previous years and serves as a guideline to help you understand when different pollen seasons typically occur in your city.

	Alder	Birch	Grass	Mugwort	Olive	Ragweed
Jan	0	0	0	0	0	0
Feb	5.5	0	0	0	0	0
Mar	131.9	9.2	0	0	0	0
Apr	40.1	400.7	0.2	0	0	0
May	0	20.1	24.8	0	0.1	0
Jun	0	0	297.8	0	0	0
Jul	0	0	200.5	1.1	0	0
Aug	0	0	31	0.3	0	0
Sep	0	0	1.1	0	0	0.1
Oct	0	0	0	0	0	0
Nov	0	0	0	0	0	0
Dec	0	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Sligo is for educational purposes only, sourced from the CAMS European air quality database. We cannot guarantee its accuracy or reliability. This information is not a substitute for professional medical advice. Consult a qualified healthcare provider for medical concerns. We are not medical professionals.