Help - Need help deciding on Canada cruise

Help- I was in the process of booking a Canada cruise on the Carnival Glory. But now I am worried that cruising in the North Atlantic- even at the end of June- might be too cold to enjoy decking activities. I will have a 9 year old with me who loves to swim but somebody mentioned that it would be too cold at sea to use the pools

Any ideas ???

The weather here can be warm in June. low 70's Those of us with pools are already in them by mid month. Now I will be honest in the fact that we ususlly wait until July to swim in the ocean..but I have been to the beach on warm June days!

if it is near the end of the month you should be in the pool for sure. for the past 2 weeks it has been in the 80's in the Montreal and Quebec area