Adelaide has a dreadful reputation for window furnishing. In the long, dry summers, the temperature in west-facing rooms reaches the mid-30s by mid-afternoon. Still, in winter, mornings can be so cold that an uninsulated living room feels draughty before the heater even starts.
Choosing curtains for Adelaide homes that you can rely on all year round is not just about choosing a fabric that looks pretty in the showroom, but about getting the right balance of heat, privacy and light management. This way, homeowners feel confident in their decisions and reassured that their curtains will perform well for all seasons.
Betta Blinds and Awnings has been manufacturing quality window furnishings since 1999, and this guide draws on that experience to walk through what actually works in South Australian conditions, room by room.
For most Adelaide homes, layering thermal or blockout curtains on west and north-facing windows with sheer curtains is the best approach for filtering light on a day-to-day basis. Blockout curtains with triple-weave or foam-backed lining cut down on summer heat gain, whereas sheers provide light and air circulation when you don’t need full blockout.
Thermal-backed fabric is most effective in rooms that receive the hottest afternoon sun, such as west-facing living areas and bedrooms. Bathrooms and other damp areas are usually better suited to a blind than to a fabric curtain.
Adelaide has a Mediterranean climate with hot, dry summers and cool, wet winters. That combination gives the same set of curtains two very different jobs. In February, a west-facing lounge room can get so much radiant heat through unprotected glass that it can overwhelm air conditioning. In July, the same window can again shed warmth overnight. Curtains that only cover one side of the equation tend to frustrate owners within a year.
In our experience supplying window furnishings to households across South Australia, the properties that get the most value from their curtains are the ones matched to orientation, not just style. A north-facing kitchen window has entirely different needs from a west-facing bedroom, even in the same house.
Blockout curtains are made with a tightly woven or coated fabric backing that blocks almost 100% of light and a large amount of radiant heat. They are the default suggestion for:
The trade-off is that blockout fabric is heavier and bulkier than sheer alternatives, and in a fully closed room, it can make a space feel flat without some sheer or light-filtering layer nearby. Our detailed guide to curtain styles breaks down pleat and fold options. This suit uses blockout fabric effectively and shows how heading style affects the finished appearance.
Thermal Curtains Adelaide also include an insulating interlining, generally a triple-weave or foam, which traps air and greatly reduces heat transfer. Practical benefits include savings on heating and cooling costs.
The practical benefit for Adelaide households is twofold:
If you have a room with decent window coverage but are specifically looking for insulation, compare curtains to a cellular alternative. Honeycomb insulated blinds also work on a similar air-pocket principle and are worth considering in rooms where floor-to-ceiling drapery isn’t practical.
Sheer curtains solve a different problem. They don’t block light and heat; they scatter it. They reduce glare while keeping the room bright and still allowing some connection to the outdoors. They are naturally good:
Sheer curtains alone do not offer sufficient heat control, especially in west-facing rooms during summer, and should be combined with thermal or blockout layers for effective temperature management.
| Curtain Type | Light Control | Heat & Thermal Performance | Best Suited To |
| Blockout Curtains | Excellent, near-total | High — reduces radiant heat and UV | West-facing bedrooms, media rooms |
| Sheer Curtains | Low — filters and diffuses | Low on its own | North-facing living areas, daytime privacy |
| Thermal (Triple-Weave) Curtains | Moderate to high | Very high — insulating interlining | Living rooms, older or draughty homes |
| Double-Layered (Sheer + Blockout) | Excellent, fully adjustable | High when the blockout layer is closed | Rooms needing flexibility across the day |
Curtains aren't always the right answer, and it's worth saying so. In bathrooms, laundries and other high-moisture areas, fabric curtains can retain humidity and are more prone to mould than hard window furnishings. In those spaces, our Veri Easi range offers the soft, curtain-like look many homeowners want without the moisture issues fabric can bring. For large sliding or bifold doors where a fully retracted curtain still takes up track space, vertical drape systems are also worth a look, since they tuck away more neatly at the sides.
1. Identify each window's orientation — west- and north-facing windows need heat control first.
2. Decide whether you need full blockout (bedrooms, media rooms) or light filtering (living areas).
3. Assess whether the room needs winter insulation and summer heat control; if so, prioritise thermal-backed fabric.
4. Consider layering sheer and blockout curtains on windows that need both daytime light and nighttime privacy.
5. Rule out fabric curtains for bathrooms and other high-humidity rooms.
6. Measure carefully, or have a retailer measure for you, since heading style affects the fabric quantity required.
What are the best curtains for Adelaide's hot summers?
Blockout or thermal curtains on west- and north-facing windows perform best, as they reduce the radiant heat that builds up from direct sun exposure during Adelaide's long summer afternoons.
Do thermal curtains really help reduce energy bills?
They can significantly reduce heating and cooling load by slowing down the transfer of heat through the glass. But the real savings will depend on window size, existing insulation and how faithfully you pull the curtains shut during peak heat or cold.
Are blockout curtains better than blinds for heat control?
And both are effective options. Blinds are generally easier to maintain in high-traffic or moist areas; however, blockout curtains tend to offer better insulation due to their fabric thickness and interlining.
Can sheer curtains help with Adelaide's UV exposure?
Sheer curtains reduce glare and some UV transmission, but they're not a substitute for blockout fabric if UV protection or heat reduction is the main priority.
How do I know which curtain heading style is right for my home?
Heading style is mainly aesthetic; however, heavier headings, such as S-wave or double pleat, tend to hang better with heavier blockout or thermal fabric.
Should I choose curtains or blinds for humid Adelaide bathrooms?
A more durable window furnishing, such as VeriEasi, is generally a better fit than fabric curtains in bathrooms, since it won't hold moisture as well.
Can I mix curtain types within the same room?
Yes—layering a sheer curtain with a blockout curtain on the same window is a common approach, giving flexibility between daytime light filtering and nighttime privacy or insulation.
No two curtains are alike, and that’s why the right curtain choice is all about matching fabric and style to the orientation and role of each window – and that’s where the expertise of your local curtain specialist comes in.
Blockout and thermal curtains are a fantastic choice for hot, sun-drenched windows, while sheers keep living spaces bright and still offer privacy. If fabric curtains aren’t the best fit for you, alternatives like Veri Easi or vertical drapes are ideal. If you want to see these options in person before deciding, you can find a local Betta Blinds retailer who can show you fabric samples and take measurements for your home
