I have flown in those conditions regularly. They're no problem for a current and experienced pilot which I assume you'll be flying with. An Instructor?
But conditions could be great deal worse than that. I think those winds might be a little optimistic. There are some strong winds forecast for tomorrow. I'm guessing it's Newcastle airfield which is on the coast. Wind can be very strong there. I wonder if it's even usable? Most of the grass strips in this country effectively unusable with all this rain.
Your pilot will no doubt make the right decision tomorrow.