Pollen Count in Montijo

4-Day Chart
Annual Overview

In Montijo, Portugal, there are three main pollen seasons. The first one starts in February and lasts until April. This is when trees like olive and birch release their pollen.

Updated: 2/22/2026

From May to July, grasses release their pollen. This is the most intense pollen season in Montijo. The air is filled with tiny pollen grains that can cause problems for some people.

In the summer, from July to September, weeds like ragweed and sorrel release their pollen. This season is shorter but still important to be aware of. People who are sensitive to pollen try to stay indoors during these times.

In the fall, from September to November, the pollen count goes down. The air is cleaner, and people can enjoy the outdoors again without worrying about pollen. This is a great time to explore Montijo's parks and nature reserves.

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 Montijo 🌾. 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
Jan	0.9	0	0	0	0
Feb	2.5	0	1.2	0	0
Mar	1.2	11.8	21.4	0	0
Apr	0.2	4.4	177.1	0	499
May	0	1	699.3	0	194.9
Jun	0	0	448.4	0	5
Jul	0	0	172.6	0	0.4
Aug	0	0	54.7	0.1	0
Sep	0	0	9	0	0
Oct	0	0	2.2	0	0
Nov	0	0	0	0	0
Dec	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Montijo 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.