Rhondda Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Rhondda is low; mold (alternaria) and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort will increase; mold (alternaria) and mold (cladosporium) will decrease; cypress, grass, and willow will remain stable.
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Pollen Risk
Today - 10 October
| 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) | None | 0/100 |
| Mold (Alternaria) | Low | 4/100 |
| Mold (Cladosporium) | Low | 17/100 |
Tomorrow - 11 October
| 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) | None | 0/100 | |
| Mold (Alternaria) | Low | 6/100 | |
| Mold (Cladosporium) | Low | 15/100 |
Local Environmental Conditions
The area around the center of Rhondda is a mix of woodland and open grassland, plus some built-up land. Woodland on all sides makes trees an important local pollen source. Grass pollen is a substantial part of the local mix as well. In the built-up parts of the area, street trees, gardens and park lawns add to the local mix.
Tree pollen comes first, peaking in mid-spring. Then come the grasses, strongest in early summer and fading by late summer. Weeds on open ground add a smaller late peak from midsummer into mid-fall. By early winter, as temperatures fall to around 5°C, pollen levels are low again. Day to day, sunshine and wind lift the counts, while a spell of rain can bring them down sharply.
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Frequently Asked Questions About Pollen in Rhondda Cynon Taff
Is pollen high in Rhondda right now?
Currently, there is no significant pollen in Rhondda.
Will pollen levels change in Rhondda tomorrow?
On 11 October 2026, pollen conditions in Rhondda will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Rhondda this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Rhondda?
On 10 October 2026, there are no significant pollen types in Rhondda.
When is pollen season in Rhondda?
How often is the Rhondda pollen forecast updated?
The Rhondda pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Rhondda 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 Rhondda 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 Rhondda, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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. |
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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).
