Home
Weather London
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
Career
    Home / Editor's Pick /

    Pollen levels spike: Rain and storms could worsen hay fever

08:00
8 May 2023

Pollen levels spike
Rain and storms could worsen hay fever

rain on flowers

Are you suffering with hay fever after a weekend of storms and rainfall... it is no coincidence, pollen often booms after rain.

No matter the time of year, rainfall will dampen pollen, easing the amount in the air. While levels will generally be lower, raindrops can kick up grass and weed pollen, just not to a significant amount.

Despite this, thunderstorms can also result in greater pollen density due to the humidity that accompanies them, causing grains to burst.

Winds then lift the released pollen and carry it far away. As warmer and drier conditions return, grains and grass which have swelled over the past few weeks will begin to release their pollen.

So after thunderstorms in England last Friday, and heavy rainfall continuing to start this new week, another burst of pollen is likely when more spring-like conditions return.

You can stay on top of the pollen levels in your area at any time here in the Weather & Radar app with our dedicated pollen feature.

Weather & Radar editorial team
More on the topic
Solar eclipse on Wednesday. Save the date. . . Monday, 10 August 2026
People are watching a solar eclipse. The sun is already partially obscured. Next to it is the weather radar forecast for Wednesday, showing an almost cloudless sky.
Monday, 10 August 2026

Save the date

Solar eclipse on Wednesday
Your moments from the solar eclipse. A unique sight. . . Wednesday, 12 August 2026
Split image showing a total solar eclipse glowing through dramatic clouds on the left and a multi-exposure eclipse sequence tracing the Sun across a blue sky on the right.
Wednesday, 12 August 2026

A unique sight

Your moments from the solar eclipse
The solar eclipse arrives tonight. Great visibility for most. . . Wednesday, 12 August 2026
Split image showing an annular solar eclipse on the left and a UK and Ireland weather map on the right with mostly sunny skies, temperatures of 30–31°C in England and 27°C in Dublin.
Wednesday, 12 August 2026

Great visibility for most

The solar eclipse arrives tonight
All weather news
This might also interest you
Storm Chandra makes impact. Severe gales & heavy rain. . . Tuesday, 27 January 2026
Split image showing strong winds over the UK on a forecast map and widespread rain and snow on a weather radar map.
Tuesday, 27 January 2026

Severe gales & heavy rain

Storm Chandra makes impact
New records for England and Wales. Broken again tomorrow?. . . Thursday, 25 June 2026
Temperature map of southwest Britain on 25.06 showing extreme heat across southern Wales and southwest England, with Bute Park in Cardiff highlighted at 34.2°C and Yeovilton at 36.4°C amid widespread deep red heat zones.
Thursday, 25 June 2026

Broken again tomorrow?

New records for England and Wales
A frozen start to the weekend. Icy conditions. . . Friday, 13 February 2026
UK temperature map dated 14.02 showing widespread subzero values in blue shading, with readings such as −4 in Glasgow, −3 in Dublin, and −2 in London, alongside a blue thermometer icon.
Friday, 13 February 2026

Icy conditions

A frozen start to the weekend
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwittertikToklinkList