Pollen Count in Caldas da Rainha

4-Day Chart
Annual Overview

In Caldas da Rainha, Portugal, trees produce pollen from February to May. This is the longest pollen season. Trees like olive, oak, and pine release pollen into the air during this time.

Updated: 2/22/2026

From May to July, grasses produce pollen. This is the second longest pollen season. Grasses like wheat, oats, and barley release pollen into the air.

In August, weeds produce pollen. This is the shortest pollen season. Weeds like ragweed and nettle release pollen into the air during this time.

Caldas da Rainha's pollen seasons change every year. The amount of pollen in the air also changes. It's good to know when pollen seasons happen to plan daily activities.

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 Caldas da Rainha 🌾. 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	4.1	0	0	0	0	0
Feb	1.6	0	0.6	0	0	0
Mar	0.1	12.7	12.1	0	0	0
Apr	0	12.4	118.3	0	259.4	0
May	0	0.7	242.1	0	295.1	0
Jun	0	0.1	149.8	0	19.7	0
Jul	0	0	31.1	0	0.5	0
Aug	0	0	6.9	0.1	0	0
Sep	0	0	3.2	0	0	0.3
Oct	0	0	0	0.1	0	0
Nov	0	0	0	0.6	0	0
Dec	0	0	0	0	0	0

Nearby Places

Disclaimer * The pollen count information provided for Caldas da Rainha 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.