Barcelona pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (16 September) pollen in Barcelona is moderate; mugwort is moderate.
Pollen Tomorrow
Tomorrow (17 September 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort will increase; cypress, grass, and willow will remain stable.
Explore Forecasts
Air Quality & Mold
Pollen for Neighborhoods
Routes
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
Pollen Risk
Today - 16 September
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 41/100 |
Tomorrow - 17 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | |
| Mugwort (Artemisia) | Moderate | 34/100 |
Local Environmental Conditions
Barcelona's Mediterranean urban vegetation, concentrated in Parc de la Ciutadella and along the Besòs River corridor, features plane, pine, and cypress as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Catalan farmland and the Collserola ridge contribute substantial grass and tree pollen, while sea breezes from the coast can periodically disperse urban pollen across the city.
Barcelona's pollen season runs from February through July, opening with cypress and plane tree pollen in late winter before grass pollen from surrounding farmland dominates through May and June. The warm Mediterranean climate means the season starts earlier and runs longer than in northern European cities, while sea breezes from the coast can periodically disperse pollen and the dry summer ends the season more abruptly than in Atlantic-facing cities.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Resource Hub
Pollen forecast neighborhoods 43 neighborhoods
Sports venues in Barcelona 6 sports venues
Popular Local Routes 2 routes
Local events 1 event
Frequently Asked Questions About Pollen in Catalonia
Is pollen high in Barcelona right now?
On 16 September 2026, overall pollen levels in Barcelona are moderate. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Barcelona tomorrow?
On 17 September 2026, pollen conditions in Barcelona will be similar to today, with artemisia at moderate levels
Is pollen expected to decrease in Barcelona this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Barcelona?
On 16 September 2026, Artemisia is the dominant pollen source in Barcelona. grass, willow, and cypress are not currently active.
When is pollen season in Barcelona?
How often is the Barcelona pollen forecast updated?
The Barcelona pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Barcelona come from nearby or far away?
Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.
Are pollen levels in Barcelona based on measurements or forecasts?
Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.
Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Barcelona, modern forecasts combine recent measurements, weather data, and information about local vegetation.
This allows us to estimate pollen levels for today and the coming days, not just report the past.
Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
