Haircare to Stop Your Hair Going Frizzy in the Rain

Haircare - 24 August 2026

◴ Read time - 5 mins

After weeks of hot, dry weather, the Great British summer has reminded us what it does best… rain!

And while our gardens might be grateful for a little moisture, our hair doesn’t always feel quite so appreciative. Humidity, drizzle and sudden downpours can quickly turn a beautifully smooth blow-dry into fluffy, frizzy or unruly hair.

So, why does our hair go fluffy when it rains – and what can we do about it?

Rather than simply adding more and more product, ask your stylist which combination of cleansing, conditioning, preparation and finishing products will work best for your hair…

Why does humidity make hair frizzy?

When there’s more moisture in the air, our hair can absorb some of that moisture – particularly if it’s dry, porous or damaged. This can cause the hair shaft to swell and disrupt the smooth finish we worked so hard to create.

The secret to fighting humidity therefore starts long before you step outside. Good preparation, moisture and the right finishing products can make a huge difference.

We asked some of our Francesco Hair experts for their advice.

Paul Corbett, Francesco Hair Salon Creative Director

How can I prepare my hair to prevent frizz in humid weather?

For Paul Corbett, Director of Advanced Education, humidity-proofing begins at the backwash.

The Wella Professionals Ultimate Smooth range is a great choice for preparing hair that is prone to frizz and flyaways. Creating a smoother, more nourished foundation makes the hair easier to control when styling and helps achieve that polished finish.

Before blow-drying, Paul recommends Sebastian Professional Taming Elixir. This lightweight smoothing serum helps tame frizz while adding softness and control without leaving the hair feeling heavy.

Does conditioning help stop hair going fluffy in the rain?

Yes. Keeping your hair well-conditioned is an important part of managing frizz, particularly if your hair is dry, porous or damaged.

A well-conditioned foundation can help make the hair easier to control when styling and create a smoother finish before you even step outside. The right conditioning routine will depend on your individual hair type, which is why your Francesco Hair stylist can recommend the most suitable products for you.

How should I blow-dry my hair to reduce frizz?

Don’t rush your blow-dry! Work methodically and direct the airflow down the hair shaft as you dry. Taking the time to create a smooth finish at this stage gives your styling products a much better foundation to work from.

Laura Smith, Francesco Hair Salon Nantwich

How can I protect my hairstyle from humidity?

Once your hair is styled, the right finishing product can become your secret weapon.

Laura Smith from Francesco Hair Salon Nantwich recommends a combination of two Sebastian Professional favourites:

They absolutely need Sebastian Professional Re-Shaper hairspray. It’s perfect – 24-hour anti-humidity and UV protection, plus you can brush it out and reshape. Amazing! I also love Sebastian Trilliant for adding shine, moisture and heat protection. It’s the perfect combination – who doesn’t want shiny hair?

Re-Shaper is particularly useful during unpredictable British weather because it gives the hair hold while still allowing movement and restyling – so you’re not committing yourself to a stiff, immovable finish just to keep the frizz away.

What is the best routine for stopping hair going fluffy in the rain?

When rain is in the forecast:

• Keep hair well-conditioned – dry, porous hair is more vulnerable to humidity.
• Use smoothing products before blow-drying rather than relying solely on hairspray afterwards.
• Take your time over your blow-dry and smooth the hair properly from root to tip.
• Use heat protection whenever you’re using heated styling tools.
• Finish with an anti-humidity hairspray to help protect your style.
• Avoid repeatedly touching your hair once you’ve styled it – especially when you’re out in damp weather.
• And if you do get caught in a downpour, don’t panic! Allow your hair to dry before brushing through and reshaping where needed.

Find the right routine for your hair

Of course, not all frizz is created equal. Fine hair, coarse hair, curls, colour-treated hair and naturally porous hair can all respond differently to humidity.

That’s where your Francesco Hair Salon Stylist can help. Rather than simply adding more and more product, ask your stylist which combination of cleansing, conditioning, preparation and finishing products will work best for your hair.

Because we can’t control the British weather.

Your hair, however, is another matter.