Outside oven dome or hood:
It will depend on the oven model. The concrete rendered heavy duty ovens are normally warm to touch on the outside dome.
Other ovens and stainless steel ovens may reach temperatures approx 50-70c on the outer sides. The base of the stainless steel ovens can reach temperatures of 80c.
Heat Transfer to bench:
The temperature under the cooking floor of the oven will vary, depending on the size of the fire and the oven however, approx. 80C degrees is common.