Of course not, and if you've ever been to the tropics you'd how impractical it would be to restrict the drinking of water.
Other drinks, like tea or coffee etc it would depend on what times lay people offer it to the monks, suffice to say that afternoon tea is one of trhe highlights of the monastic day, though no milk after noon.
"Proper effort is not the effort to make something particular happen. It is the effort to be aware and awake each moment." - Ajahn Chah
"When we see beyond self, we no longer cling to happiness. When we stop clinging, we can begin to be happy." - Ajahn Chah
"Know and watch your heart. It’s pure but emotions come to colour it." — Ajahn Chah