Table tennis is normally played indoors. This is to create a controlled environment that is favorable for both players. But during the summer, those who still want to play the game can do this outside.
Those who dont have a table should probably get the model that can be used both for indoors and outdoors. Such models are usually water and rust proof so that it wont be damaged when it gets wet.
These usually come with wheels and are collapsible in the center making it easy to assemble and disassemble after a few games. People who play the game often can even get a small tarp so protect it from dust while it is in storage.
The most important thing to check when looking for a table is how well does a ball bounce on the surface. Studies show there is a big difference perhaps because of the coating and those only those who are serious about the game will notice the difference.
Tables made of metal makes the balls bounce a little slower than those made of wood. The same thing can be noticed among the different brands being sold in the market, which is why only one that is up to standard is used in major competitions.
If the weather is hot...