Does Artificial Grass Get Hot?
Of course, artificial grass does get hot; there would be little point in saying anything other than that, which is frankly a bit cheeky. When the summer sun is beating down, artificial turf will heat up quickly and significantly, particularly when the product is out in direct sun with no shade to soften the blow. Artificial grass is not, therefore, unsuitable in heat, but one can feel a much warmer surface underfoot compared to natural grass, which stays rather cool by nature due to both water and soil. The best news is that artificial grass does not have to be uncomfortably hot, as various considerations, including the choice of artificial turf, placement and shading, as well as a quick cooldown, can easily prevent this. Artificial grass will therefore become warm; however, it is the intensity and to what extent which may cause one to consider alternatives; however, the appropriate products may even enable you to maintain an enjoyable and perfectly usable garden surface!
Why Synthetic Grass Gets Hot:
So, the simple answer is: Fake turf heats up and keeps heat because the grass has an "evaporative cooling system," which is what the artificial grass does not have. When grass takes up water, it can evaporate the water, thus cooling off the ground. Artificial turf has nothing of that sort, and it turns out that the lower amount of evaporation from a synthetic surface is one of the factors contributing to both the surface and air temperature increase over a natural grass surface.
The ideal conditions for heating up are most likely obvious: high sunshine, high dryness, no clouds, middle of the day. In Penn State's surface temperature guidance, they have explicitly put sunny, clear skies, low humidity, no clouds, between noon and 3 PM as prime artificial turf heating times, which is, to be sure, not terribly surprising information, but very important information when thinking about how you want to use your turf, or where you want to place it.
What’s important is that the heat isn’t mysterious- it’s an understandable and predictable reaction to the environment. If anything, that’s comforting because mysterious problems are difficult to solve, but understandable problems are ones you can fix. Once you have a grasp on the sun, the colour of the surface, the surrounding materials, and the air flow, the issue loses a lot of its scariness.
How Hot Can It Really Get?
This varies with the weather, but the readings can be stunning. The research compilations put up by Penn State suggest surface temps of up to 200°F (93 °C) when the air temp is 37°C and as high as about 175°F (79 °C) in central PA. According to the same guidance, synthetic turf is typically 35–55°F hotter than natural grass during the warmest days. A 2024 systematic review further noted that the temperatures of air and surfaces in the synthetic sports fields studied were higher than those of natural grass.
This doesn’t mean every suburban garden is a hot, baked-mat situation, but in bright sun, surfaces can become surprisingly hot. The difference in temps is of greatest importance to the skin that has prolonged contact: feet, hands, knees, pet paws, children, or those who choose to plop themselves right down on the grass in bright confidence, without a backup cushion. The temps that feel OK one second can feel surprisingly brutal the next, and so you should treat the surface like a hot-weather material, not a cool one.
Pro-Tip: If your garden has an especially sunny spot that receives direct afternoon sun, treat that area as the hot zone and be wary of placing turf there without an umbrella or other source of cooling shade. The highest temperatures are encountered during the clearest, sunniest, brightest days, not those hazy British “is it warm, or am I just imagining things?” conditions.
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Does Artificial Grass Type Matter?
Yes, it can be quite a lot higher. According to a number of studies, the temperature of synthetic turf can differ between products depending on things like the type of infill, shock pad, and construction of the turf. Penn State's studies also suggest that even under similar general circumstances, some surfaces were "slightly higher than others" in temperature readings. This means that while two synthetic lawns can look quite similar to the naked eye, they may perform very differently in heat.
This is why product choice is so important. An artificial turf that has been engineered with temperature reduction as a priority may be a more comfortable option than a standard product that simply looks green and friendly online. Other systems use a different method for the fibres or for the infill, and while studies have indicated that the specific choice can affect temperatures, they aren't always dramatically higher; in one review, infill modifications offered only minor increases compared with standard designs.
This, for me, is a case of that very traditional landscape and flooring truth: not all green surfaces are equal. Purchasing an artificial lawn is about more than the hue and pile height; it is also about how the artificial system will respond to the sun after the glossy brochure has been consigned to the bin and the days turn truly warm. It is then that the technical stuff finally justifies itself.
Is it Inferior to Real Grass?
Usually yes. Natural grass is cooler as it has soil moisture, and it also has moisture in its own structure, which allows for evaporative cooling. The structure of artificial turf does not do this, and a number of studies have shown higher temperatures over artificial turf compared to natural grass, sometimes considerably. An article in 2024 systematically reviewed synthetic sports surfaces and found it also registered higher air temperatures and surface temperatures on synthetic surfaces compared to natural grass.
It should be said that the comparison may not be as stark in all domestic environments as on sports pitches. The comparison is being made on large-scale football pitches out in prolonged, intense heat; the conditions of your average small garden in mixed shade in Britain at reasonable temperatures are not going to equate. This is a reasonable assumption from the test conditions: the more direct sun there is, and the less moisture, the hotter it will feel.
From my standpoint, the correct decision is not to "avoid all artificial grass" but "accept it is different to real grass". This difference is generally one that is easily managed by households, but should be accepted as a fact during the purchase process, not as an inconvenient surprise that manifests itself one summer's afternoon after purchase.
Does Shade Actually Have An Impact?
Yes. Shade is one of the most effective methods of avoiding heat, since the studies have shown that the hottest environments were in bright, clear sunlight and the cooler environment under cloudy or less direct sunlight. That's not to say shade will make the world perfect, but it is a very sensible action: the less direct sunlight, the less heating. That is an educated guess based on the temperature trends, but it is a sound conclusion.
In a British garden, shade could come from trees, a parasol, a pergola, an awning, sail shades or the architecture of the garden layout. The relief from sitting or lying on a shaded patio or grass patch on a summer's day is immediately appreciable and, in the context of planning a family garden, play space or a zone for pets, can define the difference between an acceptable space and a slightly uncomfortable one.
Pro-Tip: If you're building from scratch, use your space design to put the coolest activity zones where the sun is less intense. Essentially, let the sunny, unprotected area be a "feature" zone, keeping your seating and play zones somewhat "shaded" by design. It is a very small change in design, but the comfort reward can be huge.
Is Watering Beneficial?
Yes, but for a short time. Irrigation can provide only a temporary cooling effect, and research cited at the same link showed that initial irrigation brought about significant cooling, then the surface recovered fairly quickly. One study referenced showed the surface cooling from 174°F to 85°F post-watering, then recovering to 120°F in 5 minutes and to 164°F shortly after that. One review concluded that watering is the most effective form of cooling, but the effect is temporary.
This implies a short watering can be helpful in order to use the surface quickly if it's too hot. It's not a cooling method to use all day. The cooling is only brought about by evaporation; once the water is gone, the heat will return. For the home garden, that will still be useful at the hottest time of the day, before pets and children go out into the garden, but should be viewed as a convenience, not a cooling system.
It's that sort of temporary fix that is wonderful for a reset and a brief intervention, not a way of life. It cools the place down enough for use, then fades politely away, having achieved its purpose, and I am in favour of anything that is so efficient. It may need a lot of water. Still a win, though.
What About Colour & Infill?
Research suggests that the type of infill and the type of construction can influence the temperature, though the benefit might not always be drastic. Different infill systems produce different temperatures, and some adjustments make very little difference to the temperature of the systems when compared to conventional products. The selection of the product can have a role to play, but should not be expected to be an outright cure. Also, in a more general sense, colour and construction are important, as some types of artificial grass systems behave differently in the sun than others. The artificial grass heats to a much higher temperature than real grass, and then certain systems behave differently.
If a person is looking for artificial grass in a hot, sunny area, it is better to ask specific questions about heat than aesthetics. The product they are looking for may get hot, but systems will be designed with different degrees of thought to heat management than other systems. While not as attractive as an Instagram-worthy lawn, it will be much more functional in August.
Pro-Tip: Ask suppliers about product sun characteristics, what type of infill they use, and if the system was designed with heat in mind. A wittyanswer is nice, but a useful answer is better.
Is Hot Turf Truly Hazardous?
It can be. The problem isn't just comfort: high artificial turf temperatures have been associated with a risk of burning the skin by direct contact and with heat stress for athletes; high temperatures can add stress to the body and contribute to potentially severe heat-related issues; artificial turf can be a source of burn injuries and exertional heat illness when surface temperature reaches extremely high levels.
This is not to say all domestic artificial turf becomes a hazard. It does suggest careful consideration of the surface on the hottest days, particularly with barefoot children and animals lying around on it. Surface temperatures exceeding known pain thresholds have been found in studies on synthetic turf, and this level of heat should be respected even in a domestic situation.
This represents the concerning aspect of an otherwise prosaic issue. A comfortably warm turf is one thing. A surface hot enough to be uncomfortable, even painful, on human skin is quite another. This distinction is why the addition of shade, being mindful of when the children play on it, and the application of water are not optional niceties but practicalities.
FAQs:
1. Is artificial grass hotter than natural grass?
Yes, numerous research studies published all around the world support the fact that artificial turf will always be hotter than natural grass, sometimes by a very large margin, due to it not being a natural product, and thereforenot having the same natural cooling andevaporationprocesses that a real lawn has.
2. Will watering my artificial grass cool it down?
Yes, watering can help cool the surface rapidly in some cases, but only for a limited amount of time. After being watered, the surface will reheat shortly after simply through the heat provided by the sun and the process of evaporation.
3. What is the best way to keep artificial grass cool?
Shade is the main factor, but products with better heat- management properties and temporary cool-down methods of watering will also help; product design and the landscaping in the garden will play roles as well.
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