A lot of people arrive in Perth with curls that behaved predictably back home and watch them change within a few weeks. The frizz increases, the definition drops, or the curl pattern itself seems different. It is not your imagination.
Perth has a Mediterranean climate. Summers are hot and dry with low humidity. Winters are mild with more moisture in the air. Curly hair is more sensitive to those swings than most people realise, and there are specific reasons why.
Why does Perth weather affect curl pattern?
Curly hair has a naturally more open cuticle structure than straight hair. This means it absorbs and loses moisture faster than other hair types. In Perth’s dry summer conditions, moisture evaporates from the hair shaft quickly, and curls lose definition and turn frizzy. In winter when humidity rises, the hair absorbs moisture unevenly, causing the curl pattern to swell and lose shape.
For people with Brazilian curly hair or type 3 curls, this contrast is more pronounced. Tighter, more defined curl patterns are more reactive to moisture shifts than looser waves because the cuticle disruption has a greater effect on how the curl falls and holds its shape.
Why is a curly haircut different from a regular cut?
When curly hair is wet, it stretches. When it dries, it contracts. A stylist who cuts curly hair while it is wet is cutting a different length to what you will actually have when you walk out the door.
Which products actually work for curly hair in Australia?
Look for products formulated for high-porosity hair. Key ingredients include hydrolysed proteins, which strengthen the hair shaft; shea butter and jojoba oil, which help retain moisture; and panthenol, which assists in sealing the cuticle between washes. Avoid heavy silicones unless you are using a sulphate shampoo regularly to remove them. Products formulated for Australian climate conditions tend to perform better here than imports designed for Northern Hemisphere humidity profiles.
One detail worth knowing: at Unique Beauty & Style we filter Perth’s hard water to remove chlorine and heavy metals before it touches your hair. Hard water mineral buildup is a real contributor to curly hair frizz and dryness, and most salons do not address it.
