It's best apply to polish and wax when surface temperatures are between 60-80°F. A simple test is to feel the surface before application; it should not feel too cold or too hot to the touch.
Outside ambient air temperature could be warmer than the surface temperature, such as in the morning after a cold night, or later in the day after exposure to the hot sun. If the surface temperature is cold to the touch, wait until it warms up in the ambient air. If the surface is directly in the hot sun, wait until it can cool down in the shade.