Why patio season ends too early

Ask garden owners when their season is over, and you'll get two answers: "when it gets cold" and "around September". What's interesting is what actually tips the balance in practice – and it's rarely the air temperature. It's the first evening when sitting outside stops being comfortable: a clammy cushion, a cold draught on your back, no light source left by seven in the evening.

All three points can be solved, and with manageable effort. The key is tackling them in the right order. Most people buy a patio heater first – and are then surprised it changes so little.

The thermal trio: warmth, wind protection, warm surface

The body loses heat in three ways, which matter to different degrees in autumn: through the air, through draughts, and through direct contact with cold surfaces. That last point is the one almost everyone underestimates.

The reason is physics: heat is conducted away much faster through direct contact than through still air. A cold stone bench, a damp wooden plank or a metal chair draws body heat away at a multiple of the rate that cool air does. That's why you get cold on a stone step at 15 degrees faster than standing at 12 degrees. A patio heater warms the air and surfaces from above – while the seat underneath keeps cooling.

The practical takeaway: insulate the seating surface first, block the wind second, heat third. In that order, every euro spent goes furthest.

Element 1: seating surface – the underrated factor

In autumn, a cushion with decent foam thickness isn't a comfort extra, it's an insulating layer. Between your body and a cold surface sits eight to ten centimetres of material that barely conducts heat at all – the seat feels warm after a short while, because your own body heat stays in the padding instead of migrating into the stone slab.

If you're perfectly happy with a thin 4-centimetre cushion in summer, you'll notice the difference clearly in October. Our guide Which foam thickness for outdoor cushions? explains which thickness suits which piece of furniture – for the extended season, 8 to 10 centimetres is the sensible range.

Two further details help more in autumn than in summer: a back cushion protects your back from a cold backrest – heat is lost there just as it is under the seat. And a few outdoor cushions turn a bench into a corner you actually want to sit in. Because our cushions are made from olefin, they also stay dry and free of damp clamminess in autumn humidity – more on that below.

Element 2: wind protection before heating

At 15 degrees and no wind, you can sit comfortably in a jumper. At 15 degrees with a light draught, it becomes unpleasant – that's physics too: moving air constantly strips away the thin warm layer right at your skin.

That's why wind protection is the second most effective investment. It doesn't need to be a construction project: a tall planter on the windward side, a bamboo screen on the railing, a shade sail pulled lower, or simply turning your seating group 90 degrees so the house wall is at your back. If you know your patio's prevailing wind direction, one well-placed element gets you further than three patio heaters.

Element 3: choosing the right heat source

Only now does a heat source pay off – and the right choice depends on your patio's layout.

Electric patio heaters (infrared) work instantly and directionally: they warm surfaces and people, not the air. Ideal for covered terraces and balconies, where heat doesn't drift away sideways. On open areas, the effect fades the moment you shift a metre to the side.

Fire bowls or fire pits deliver genuine radiant heat plus atmosphere, and work on open areas too. Two things matter: sufficient distance from anything textile – flying sparks are the most common cause of holes in outdoor cushions, and no fibre in the world is immune to embers – and, when in doubt, checking local regulations, since open fire isn't allowed everywhere.

Blankets are the most underrated heat source of all: a basket of woollen blankets next to the seating group costs a fraction of a patio heater and gets used far more often on mild evenings. One thing to remember: bring woollen blankets in overnight – unlike olefin, they absorb moisture.

Element 4: light creates a second season

In June it gets dark around half past ten; in October, half past six. If you want to sit outside, you need light – and specifically warm, low light, not the motion-sensor floodlight on the house wall.

A mix of several small sources at different heights works best: lanterns on the ground, fairy lights in a tree, two candles in a wind glass on the table. This isn't a decoration topic – it's the difference between "let's just pop outside" and "let's stay a while longer". Solar lanterns, however, deliver less power in autumn than in summer – battery-powered or mains options are worth it here.

Autumn reality: moisture, not cold

The real opponent in autumn isn't temperature, it's moisture. Nights grow longer, morning dew is heavy, and whatever gets wet in the evening barely dries during the day – at ten degrees and weak sun, very little evaporates.

This is exactly where the fabric a cushion is made from shows. Cotton and polyester cushions absorb water and stay damp through autumn; olefin absorbs under 0.1 percent moisture, so it dries quickly again after dew or drizzle. Our guide What is olefin? explains why that's a material property rather than a coating.

Two habits make the biggest difference in autumn: stand cushions up in the evening instead of leaving them flat – that lets water run off and both sides ventilate. And during several days of rain, put them in the cushion box or under cover – not because of the fabric, but because sustained damp wears away at the furniture underneath.

How to tell it's time to put things away

The question "when do I put the cushions away?" usually gets answered by calendar – roughly late October. Three criteria make more sense, since they arrive at different times depending on where you live:

1. The cushion no longer dries out during the day. If a cushion that's damp in the morning still isn't dry by evening, the weather is working faster than it's drying out.

2. Night frost is forecast. The fabric itself doesn't mind frost, but frozen moisture in seams, zips and furniture joints does.

3. You simply aren't sitting outside any more. Cushions left lying around purely for decoration collect leaves, moisture and bird droppings – with no benefit in return.

If two of the three apply, the moment has come. Only one rule matters then: never store cushions damp. Our guide How to care for outdoor cushions covers, in detail, how to clean, dry and store your cushions properly before the winter break – including where to store them and the most common mistakes.

And if your cushions have had enough?

Autumn is the most honest moment for stocktaking: after the season, you can see exactly what's sagged, faded or grown brittle. To find out whether a cushion has one more season left in it, try the 3-minute UV self-check.

A useful side effect of the off-season: our workshop is less busy in autumn and winter than in high summer, so lead time is 2–3 weeks instead of up to four. Order now, and your new custom cushions will already be waiting for the first warm weekend of spring – no need to queue in May. If you're unsure about colour and fabric, fabric samples are free and arrive just as fast in autumn.

Frequently asked questions about the autumn patio

Conclusion

Patio season doesn't end in September – it ends when sitting outside becomes uncomfortable, and that point can be pushed back. Insulating seating surfaces, thoughtful wind protection, the right heat source and warm light together add up to four to six extra weeks on average. Four more weeks of garden a year, for an effort that only happens once.