Asthma UK community forum

Asthma and Weather

I was struggling the other day when it was very hot and humid. The air almost felt heavy like there was going to be a storm. I was chatting to my GP about this when I went to see her and she said that they seem to end up with a lot of asthma emergencies when the weather is like that but that she didn't know why people were so affected by it. I said that I was going to try and find out the answer for her.

So my question to all you clever people is why do storms and stormy weather make people's asthma worse?



7 Replies

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weather and asthma

Hi Em

My asthma is always worse when the weather is humid and close, like a storm is on it's way. AUK's triggers page has some info on it. During storms our local A&E seems to be full of people nebbing.

Basically it seems as though it is to do with the pollen that is released when the air pressure changes in that sort of weather just before a storm hits. I am sure someone else could explain it better, but i know that during that sort of weather i make sure that check my peakflow before going out and often i take my inhaler before going out, as peakflow for me is on the low side and i dont tend to keep the windows open, just to reduce the pollen coming into the house.




i'm worse when the weather is hot and dry (i have been abroad once and with the humidity i had so many problems beathing/wheezing etc). my son is worse in the cold and damp weather.


Dry, freezing but too cold for snow is the weather which affects me most.


It's a weird one, some struggle with the high temperatures and humidity and if I recall that is usually the younger age groups while the older tend to suffer more in the cold and less humid winters.

Personally I tend to find the cold dry air of winter a problem, peakflows back that up and all winter struggle to get good readings, but recently gone on to set new PB's with the arrival of the sun and warmer air.


Hi Wherrers,

The damp muggy weather sets me off dont know why unless its the low air muggyness.

hot sticky weather sets me off also and was realy bad last year with 2 hosp admittance. Hope

my new meds keep me out this Glynis xxx


Hi wherrers,

I once read about it and it said that just before it rains it usually gets stormy, the pressure in the air pushes pollen lower to the ground so that there's increased pollen count for us to inhale. Also it's best to get inside just as it starts raining as the pollen come down with it. After a few mins of rain it's safer to get outside again as the pollen then stick to the wet ground.

I noticed over the last couple of years that the pollen are getting bigger and I can still see them in the air after a short period of rain.

Hope this all makes sense? ;-)

love Lydia x


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