Abstract: A solar baking oven was successfully constructed with cheap and locally available materials and was tested. Data was collected during the experiment and was also recorded. The effect of wind speed to the system have become a major concern, due to this limitation, this paper present the effects of solar radiation and wind speed on the performance evaluation of a solar thermal oven. The performance evaluation of the oven in terms of figures of merits and oven efficiency was evaluated based on Indian Standard (IS 13429:2000).