Pollen Count in Castelo Branco

4-Day Chart
Annual Overview

In Castelo Branco, Portugal, there are three main pollen seasons. The first one starts in January and lasts until March. This is when the almond trees release their pollen.

Updated: 2/22/2026

In April and May, the olive trees release their pollen. This is the second pollen season. During this time, the air is filled with tiny particles from the olive trees.

The third pollen season starts in June and lasts until August. This is when the grasses and weeds release their pollen. The air is filled with pollen from many different plants.

During pollen seasons, it's a good idea to stay indoors when possible, especially on windy days. Keeping windows closed can help keep pollen out of your home.

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 Castelo Branco 🌾. 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	2.4	0	0	0	0	0
Feb	7.4	0	0.2	0	0	0
Mar	2.7	8	28.8	0	0	0
Apr	0.9	10.4	228.2	0	922.9	0
May	0	1.7	1381.8	0	5165	0
Jun	0	0	872	0	96.5	0
Jul	0	0	294	0	0.5	0.2
Aug	0	0	78.8	1	0	0.8
Sep	0	0	10.2	0.2	0	0.2
Oct	0	0	0.7	0	0	0
Nov	0	0	0	0.2	0	0
Dec	0	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Castelo Branco 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.