Risca pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Risca is high; mugwort is high; cypress and grass are low. Tomorrow (10 August 2026) levels are similar - mugwort declining. Over the following five days grass and mugwort will increase; cypress will remain stable. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Residents in Risca dealing with hay fever usually point to alder and oak as the culprits, particularly in spring near parks and gardens. The nearby stretch of open moorland adds further grass and tree pollen exposure, particularly under moist Atlantic fronts. This mix of urban and rural influence gives Risca a fairly typical pollen pattern for the wider region.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
11/100
-
Grass (Poaceae):
Low
12/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
High
55/100
High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.
Tomorrow - 10 August
-
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):
Medium
38/100
Air quality in Risca
View air qualityFrequently Asked Questions
Is pollen high in Risca right now?
On 9 August 2026, overall pollen levels in Risca are high. Artemisia is the main contributor to airborne pollen, while cypress and grass remain at lower levels
Will pollen levels change in Risca tomorrow?
On 10 August 2026, pollen conditions in Risca will be different from today, with artemisia continuing to decline
Is pollen expected to decrease in Risca this week?
According to the five-day outlook, artemisia and grass pollen levels will increase later in the week.
Which pollen types are currently active in Risca?
On 9 August 2026, Artemisia is the dominant pollen source in Risca. cypress and grass are also present but at lower levels. hazel and willow are not currently active.
When is pollen season in Risca?
How often is the Risca pollen forecast updated?
The Risca pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Risca 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 Risca 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 Risca, 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.
Want to see pollen forecasts for other cities in United Kingdom?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Risca.
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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.