Hi. It is definitely hot as it is May now and peak summer in Chennai. But that won’t stop your plans in the resort. You can spend time in the swimming pool, beach and pretty much most spaces were air conditioned. Infact it is a good time to visit. ☺️
For prices, it’s better to call the resort and check depending on your stay. Also please note that the check in time is 3PM. So you can also check with them how your lunch, dinner will be accommodated.