Orléans pollen forecast - today, tomorrow and the week ahead

On 25 June 2026, overall pollen levels in Orléans are low. Grass is the main contributor to airborne pollen

On 26 June 2026, pollen conditions in Orléans will be similar to today, with grass at low levels

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

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

Orléans sits at the heart of the Loire valley, where the river channels airflows and the relatively dry regional climate means fewer rainfall interruptions than in Atlantic-facing cities. Hazel and alder open from January before birch and plane peak through April and May. Grass from surrounding Sologne farmland and the Orléans forest peaks through June and July throughout the season.

The Orléans 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 Orléans, 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.