cooled boiled water

[AngelMum1]

hi all, my baby is now 3 months old and taking her feeds as she should and some extra also as the weather is warm however she isn't actually drinking the milk, so I have put it down to possible thirst with the hot weather we currently have, my question is how many ounces of cooked boiled water?

For reference she has 6/7oz when wakes up at 5.30/6am, then 5oz around 8.30/9 then 5oz at 11.30 5oz around 2.15 5oz at 5 then 6/7oz at 8/9pm she is formula fed also

Thanks