The short answer is to reduce direct sun, choose materials that don’t store much heat, and put a barrier between bare legs and the seat. In cities, the real issue is often stored heat: dark metal, concrete, and stone keep radiating warmth long after the sun moves off. So don’t just look for shade—look for a seat that has been in shade and has airflow around it.
If you own the furniture, start with shade. A parasol, shade sail, pergola, or even a movable planter with a climbing vine can drop surface temperatures noticeably. Shade the seat, not just the table. Also think about orientation: in the northern hemisphere, west- and south-facing spots collect brutal afternoon sun; a shaded east-facing corner or a spot under a tree is often kinder to bare legs. Light colors help reflect sunlight, but they won’t fix a thick slab of stone that has been baking for hours.
Material choice matters more than most people expect. Slatted wood, woven rope, cane, mesh, and perforated metal let air move and shed heat faster than solid plastic or dark steel. If you have metal furniture, choose light-colored powder-coated frames and add a breathable seat pad. Avoid black metal and dark composite that can feel scorching. Removable, light-colored cushions are useful, but take them inside or into shade when not in use; a hot cushion can trap heat against your legs.
For existing urban outdoor furniture, carry a slim seat pad, a folded towel, or a light scarf. It sounds simple, but a barrier makes a huge difference on public benches. Before you sit, touch the surface with the back of your hand—not just your palm—and check whether it is hot from sun or from stored heat. If a bench is in direct sun, look for one under a tree, a shelter, or a building’s shadow. A quick wipe with cool water can help on some surfaces, but avoid soaking wood or leaving water on metal that may get slippery.
Airflow is your friend. Move furniture slightly apart, avoid solid backs and sides that block breezes, and use open-weave materials. If you have control over the space, add plants or planters; they cool the microclimate and cast dappled shade. Finally, time your sitting. Morning and late afternoon are usually easier on bare legs than the middle of a heat-island afternoon. With shade, breathable materials, and a small barrier, urban outdoor seating can stay comfortable without waiting for the whole city to cool down.