Pola de Siero pollen forecast - today, tomorrow and the week ahead

On 25 June 2026, overall pollen levels in Pola de Siero are moderate. Grass is the main contributor to airborne pollen

On 26 June 2026, pollen conditions in Pola de Siero will be similar to today, with grass at medium levels

According to the five-day outlook, grass pollen levels will increase later in the week.

On 25 June 2026, Grass is the dominant pollen source in Pola de Siero. willow, alder, birch, hazel, and cypress are not currently active.

Pola de Siero's Asturian valley setting and the surrounding Cantabrian woodland produce a season opening with hazel and alder in January before birch and oak peak through April and May. Grass peaks through June and July before mugwort and nettle extend exposure into September. The very wet Atlantic Cantabrian climate means very frequent rainfall provides regular interruptions throughout.

The Pola de Siero pollen forecast is updated four times daily. See the timestamp below for the most recent update.

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.

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 Pola de Siero, 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.