Pollen Counts in United Kingdom
Check daily pollen forecasts, the pollen map, seasonal trends, and all the cities we cover in United Kingdom. Forecasts update every day, so check back regularly during pollen season.
Updated: 8 Nov 2026.
United Kingdom Pollen Map
- Alder
- Birch
- Grass
- Mugwort
- Olive
- Ragweed
United Kingdom's Pollen Seasons
In the United Kingdom, tree pollen starts with alder in March and continues into April. Birch pollen appears in April, the busiest month for pollen. Olive pollen is measured in May. These trees release pollen at different points in spring.
Grass pollen is the most common type across the year in the United Kingdom. Its measured season is June and July. For some people with allergies, grass pollen can make these summer months harder to enjoy outdoors.
Weed pollen appears at different times. Mugwort pollen is measured in July, while ragweed pollen is measured in September. This means weed pollen can continue after the main grass season, giving the pollen year a later-season stretch.
Pollen Calendar for United Kingdom
Typical pollen calendar for United Kingdom, averaged across 178 cities from previous years. Alder peaks in March, Birch peaks in April, Grass peaks in June, Mugwort peaks in July. Use it to see which months each pollen type usually rises and falls.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 0.4 | 0 | 0 | 0 | 0 | 0 |
| Feb | 8.8 | 0 | 0 | 0 | 0 | 0 |
| Mar | 117.1 | 43.5 | 0 | 0 | 0 | 0 |
| Apr | 112.2 | 626.3 | 2.9 | 0 | 0 | 0 |
| May | 0.2 | 60.2 | 63.6 | 0 | 0.5 | 0 |
| Jun | 0 | 0.1 | 790.4 | 21.6 | 0 | 0 |
| Jul | 0 | 0.1 | 355.4 | 127.3 | 0 | 0 |
| Aug | 0 | 0 | 56.5 | 26.3 | 0 | 0.1 |
| Sep | 0 | 0 | 2.9 | 0.3 | 0 | 2 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
Values in gr/m³ (pollen grains per cubic metre), averaged across covered cities. Local microclimates vary. Not medical advice.
Places We Cover in United Kingdom
We publish forecasts for these cities across United Kingdom. Check the list to see what is near you, or view them on the United Kingdom Pollen Map above.
England
- Alnwick
- Altrincham
- Ascot
- Ashford
- Bacup
- Banbury
- Barnstaple
- Basingstoke
- Bath
- Beckenham
- Berkhamsted
- Bideford
- Blackpool
- Bourne
- Bournemouth
- Braintree
- Braunton
- Brighton
- Bristol
- Brixton
- Bromley
- Bruton
- Bucklers Hard
- Cambridge
- Canterbury
- Carlisle
- Caterham
- Chelmsford
- Cheltenham
- Chesham
- Clevedon
- Clipstone
- Colchester
- Cottingham
- Coventry
- Crediton
- Crewe
- Crystal Palace
- Derby
- Doncaster
- Durham
- Ely
- Exeter
- Falmouth
- Feltham
- Ferndown
- Folkestone
- Gatwick
- Gloucester
- Golders Green
- Grantham
- Grimsby
- Guildford
- Hailsham
- Hatfield
- Hemel Hempstead
- Hendon
- Henley in Arden
- High Wycombe
- Hitchin
- Horley
- Hounslow
- Hove
- Hull
- Ilfracombe
- Ipswich
- Ivybridge
- Keighley
- Kendal
- Kettering
- Keynsham
- Kings Lynn
- Leeds
- Leek
- Leicester
- Letchworth Garden City
- Lichfield
- Lincoln
- Littlehampton
- Mablethorpe
- Manchester
- Mansfield
- Melbourne
- Middlesbrough
- Milton Keynes
- New York
- Newbury
- Newcastle upon Tyne
- Newton Solney
- Northallerton
- Northampton
- Norwich
- Nottingham
- Otterburn
- Oxford
- Penzance
- Peterborough
- Plymouth
- Portishead
- Portland
- Portsmouth
- Preston
- Purley
- Rawtenstall
- Reading
- Ross on Wye
- Rothbury
- Rudyard
- Sheffield
- Skegness
- Sleaford
- Southampton
- Southend-on-Sea
- Spalding
- St Albans
- Stafford
- Stockport
- Stoke-on-Trent
- Stowmarket
- Stroud
- Sunningdale
- Surbiton
- Tarporley
- Tenterden
- Tewkesbury
- The Hague
- Torquay
- Uckfield
- Urmston
- Veryan
- Wales
- Weston-super-Mare
- Weybridge
- Wigan
- Windermere
- Winscombe
- Woking
- Worcester
- York
Northern Ireland
Other
Scotland
- Aberdeen
- Anstruther
- Balloch
- Calgary
- Coatbridge
- Cupar
- Dundee
- Edinburgh
- Elgin
- Inverness
- Kirriemuir
- Lerwick
- Oban
- Perth
- Peterhead
- St Andrews
- Stirling
- Thurso
Wales
Pollen information is for education and planning only. This is not medical advice. Consult a qualified healthcare provider about symptoms or treatment.