I think it would be worth it to get atleast the name of a therapist at home or of some community resources. It's so much harder to make that effort when you're depressed or in crisis. I think it would be helpfull to try and set things up incase you need them. Also, it wont just be for this summer, what about next summer and so on.
And I like turquoisesea's suggestion to see if there's a way to contact you're current therapist over the summer.
In the end though I think you should do what feels right to you.