Abertawe pollen forecast - today, tomorrow and the week ahead
Today (25 June) pollen in Abertawe is high; grass is high; cypress is low. Tomorrow (26 June 2026) levels are similar - grass declining. Over the following five days cypress and grass will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Abertawe (Swansea) sits along the bay and Tawe estuary, where coastal breezes can disperse urban pollen. Oak and birch are common in parks such as Brynmill Park and along suburban streets, with exposure varying between greener areas and the more built-up city centre. Inland, the Brecon Beacons and surrounding Welsh valleys contribute significant tree and grass pollen that moves into the city when winds blow from the north and east.
Today - 25 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
21/100
-
Grass (Poaceae):
High
54/100
-
Willow (Salicaceae):
None
0/100
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 - 26 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
16/100
-
Willow (Salicaceae):
None
0/100
Frequently Asked Questions
Is pollen high in Abertawe right now?
On 25 June 2026, overall pollen levels in Abertawe are high. Grass is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in Abertawe tomorrow?
On 26 June 2026, pollen conditions in Abertawe will be different from today, with grass continuing to decline
Is pollen expected to decrease in Abertawe this week?
According to the five-day outlook, cypress and grass pollen levels will increase later in the week.
Which pollen types are currently active in Abertawe?
On 25 June 2026, Grass is the dominant pollen source in Abertawe. cypress are also present but at lower levels. alder, birch, hazel, and willow are not currently active.
When is pollen season in Abertawe?
How often is the Abertawe pollen forecast updated?
The Abertawe pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Abertawe 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 Abertawe 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 Abertawe, 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: 25 Jun 2026, 09:02 CET (Data is updated four times daily.)
This page provides the latest public pollen forecast for Abertawe.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.