when to plant tomato/dwarf bean plants is polytunnel

[Chicken6]

(Must seem like I'm bit to focused on these plants )

I've put a min/max themometer in the P/T to check the night time temp but
wanted to know when other people with a P/T risk putting them in there.
I don't mean planting just moving into the P/T.

At the moment I'm putting them in the mini greenhouse in the day and bringing back inside
by 4ish


I've also got a great crop of dwarf french beans and I'm doing the above with them too.