Grass
None
Index value 0 of 5.
Saturday 24 October Updated 12:30
No pollen in London today.
Tomorrow stays at this level.
Tree
None
Index value 0 of 5.
Weed
None
Index value 0 of 5.
Hay fever sufferers in London should track all three pollen types from March through August.
Tree pollen here is dominated by London plane, oak and lime, with grass led by ryegrass and cocksfoot and weeds by nettle and mugwort.
Tree pollen typically peaks in late March to early May. Grass counts are highest from late May into early July. Mature urban canopy with high plane and lime cover keeps the tree count active well into May.
Search above to compare neighbouring postcode areas and towns.
Hay fever season in London
The pollen season in London runs from February to October. The worst months are typically April, June, July and August.
| Pollen | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tree pollen | Jan: none | Feb: low | Mar: active | Apr: peak | May: active | Jun: low | Jul: none | Aug: none | Sep: none | Oct: none | Nov: none | Dec: none |
| Grass pollen | Jan: none | Feb: none | Mar: none | Apr: none | May: active | Jun: peak | Jul: peak | Aug: low | Sep: none | Oct: none | Nov: none | Dec: none |
| Weed pollen | Jan: none | Feb: none | Mar: none | Apr: none | May: none | Jun: low | Jul: active | Aug: peak | Sep: active | Oct: low | Nov: none | Dec: none |
- Tree pollen in London runs from February to June. It peaks in April.
- Grass pollen in London runs from May to August. It peaks in June.
- Weed pollen in London runs from June to October. It peaks in August.
See the full UK pollen calendar or read when hay fever season starts and ends.